TY  - JOUR
AU  - Ribić, Vesna
AU  - Recnik, Aleksander
AU  - Drazic, Goran
AU  - Podlogar, Matejka
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1471
AB  - In our recent study (Ribie et al. 2020) we reported the structure of inversion boundaries (IBs) in Sb2O3 -doped ZnO. Here, we focus on IBs that form in SnO2-doped ZnO. Using atomic resolution scanning transmission electron microscopy (STEM) methods we confirm that in SnO2-doped ZnO the IBs form in head-to-head configuration, where ZnO4 tetrahedra in both ZnO domains point towards the IB plane composed of a close packed layer of octahedrally coordinated Sn and Zn atoms. The in-plane composition is driven by the local charge balance, following Pauling's principle of electroneutrality for ionic crystals, according to which the average oxidation state of cations is 3+. To satisfy this condition, the cation ratio in the IB-layer is Sn4+ : Zn2+ =1:1. This was confirmed by concentric electron probe analysis employing energy dispersive spectroscopy (EDS) showing that Sn atoms occupy 0.504 +/- 0.039 of the IB layer, while the rest of the octahedral sites are occupied by Zn. IBs in SnO2-doped ZnO occur in the lowest energy, IB3 translation state with the cation sublattice expansion of Delta IB(zn-zn) of +91 pm with corresponding O-sublattice contraction Delta IB(O-O) of -46 pm. Based on quantitative HRTEM and HAADF-STEM analysis of in-plane ordering of Sn and Zn atoms, we identified two types of short-range distributions, (i) zigzag and (ii) stripe. Our density functional theory (DFT) calculations showed that the energy difference between the two arrangements is small (similar to 6 meV) giving rise to their alternation within the octahedral IB layer. As a result, cation ordering intermittently changes its type and the direction to maximize intrinsic entropy of the IB layer driven by the in-plane electroneutrality and 6-fold symmetry restrictions. A long-range in-plane disorder, as shown by our work would enhance quantum well effect to phonon scattering, while Zn2+ located in the IB octahedral sites, would modify the the bandgap, and enhance the in-plane conductivity and concentration of carriers.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - TEM and DFT Study of Basal-plane Inversion Boundaries in SnO2-doped ZnO
EP  - 252
IS  - 2
SP  - 237
VL  - 53
DO  - 10.2298/SOS2102237R
ER  - 

@article{
author = "Ribić, Vesna and Recnik, Aleksander and Drazic, Goran and Podlogar, Matejka and Branković, Zorica and Branković, Goran",
year = "2021",
abstract = "In our recent study (Ribie et al. 2020) we reported the structure of inversion boundaries (IBs) in Sb2O3 -doped ZnO. Here, we focus on IBs that form in SnO2-doped ZnO. Using atomic resolution scanning transmission electron microscopy (STEM) methods we confirm that in SnO2-doped ZnO the IBs form in head-to-head configuration, where ZnO4 tetrahedra in both ZnO domains point towards the IB plane composed of a close packed layer of octahedrally coordinated Sn and Zn atoms. The in-plane composition is driven by the local charge balance, following Pauling's principle of electroneutrality for ionic crystals, according to which the average oxidation state of cations is 3+. To satisfy this condition, the cation ratio in the IB-layer is Sn4+ : Zn2+ =1:1. This was confirmed by concentric electron probe analysis employing energy dispersive spectroscopy (EDS) showing that Sn atoms occupy 0.504 +/- 0.039 of the IB layer, while the rest of the octahedral sites are occupied by Zn. IBs in SnO2-doped ZnO occur in the lowest energy, IB3 translation state with the cation sublattice expansion of Delta IB(zn-zn) of +91 pm with corresponding O-sublattice contraction Delta IB(O-O) of -46 pm. Based on quantitative HRTEM and HAADF-STEM analysis of in-plane ordering of Sn and Zn atoms, we identified two types of short-range distributions, (i) zigzag and (ii) stripe. Our density functional theory (DFT) calculations showed that the energy difference between the two arrangements is small (similar to 6 meV) giving rise to their alternation within the octahedral IB layer. As a result, cation ordering intermittently changes its type and the direction to maximize intrinsic entropy of the IB layer driven by the in-plane electroneutrality and 6-fold symmetry restrictions. A long-range in-plane disorder, as shown by our work would enhance quantum well effect to phonon scattering, while Zn2+ located in the IB octahedral sites, would modify the the bandgap, and enhance the in-plane conductivity and concentration of carriers.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "TEM and DFT Study of Basal-plane Inversion Boundaries in SnO2-doped ZnO",
pages = "252-237",
number = "2",
volume = "53",
doi = "10.2298/SOS2102237R"
}

Ribić, V., Recnik, A., Drazic, G., Podlogar, M., Branković, Z.,& Branković, G.. (2021). TEM and DFT Study of Basal-plane Inversion Boundaries in SnO2-doped ZnO. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 53(2), 237-252.
https://doi.org/10.2298/SOS2102237R

Ribić V, Recnik A, Drazic G, Podlogar M, Branković Z, Branković G. TEM and DFT Study of Basal-plane Inversion Boundaries in SnO2-doped ZnO. in Science of Sintering. 2021;53(2):237-252.
doi:10.2298/SOS2102237R .

Ribić, Vesna, Recnik, Aleksander, Drazic, Goran, Podlogar, Matejka, Branković, Zorica, Branković, Goran, "TEM and DFT Study of Basal-plane Inversion Boundaries in SnO2-doped ZnO" in Science of Sintering, 53, no. 2 (2021):237-252,
https://doi.org/10.2298/SOS2102237R . .

TY  - JOUR
AU  - Ribić, Vesna
AU  - Recnik, Aleksander
AU  - Komelj, Matej
AU  - Kokalj, Anton
AU  - Branković, Zorica
AU  - Zlatović, Mario
AU  - Branković, Goran
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1376
AB  - Today, ab-initio calculations are becoming a powerful tool to perform virtual experiments that have the capacity to predict and to reproduce experimentally observed non-periodic features, such as interfaces, that are responsible for quantum properties of materials. In our paper we investigate 2D quantum-well structures, known as inversion boundaries OM. Combining atomistic modeling, DFT calculations and HRTEM analysis we provide a new fundamental insight into the structure and stability of Sb-rich basal-plane IBs in ZnO. DFT screening for potential IB model was based on the known stacking deviations in originating wurtzite structure. The results show that the model with A beta-B alpha-A beta C-gamma B-beta C sequence (IB3) is the most stable translation for Sb-doping, as opposed to previously accepted A beta-B alpha-A beta C-gamma A-alpha C (IB2) model. The key to the stability of IB structures has been found to lie in their cationic stacking. We show that the energies of constituting stacking segments can be used to predict the stability of new IB structures without the need of further ab-initio calculations. DFT optimized models of IBs accurately predict the experimentally observed IB structures with lateral relaxations down to a precision of similar to 1 pm. The newly determined cation sublattice expansions for experimentally confirmed IB2 and IB3 models, Delta(IB(zn-zn)) are +81 pm and +77 pm, whereas the corresponding O-sublattice contractions Delta(IB(0-0)) are -53 pm and -57 pm, respectively. The refined structures will help to solve open questions related to their role in electron transport, phonon scattering, p-type conductivity, affinity of dopants to generate IBs and the underlying formation mechanisms, whereas the excellent match between the calculations and experiment demonstrated in our study opens new perspectives for prediction of such properties from first principles.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Acta Materialia
T1  - New inversion boundary structure in Sb-doped ZnO predicted by DFT calculations and confirmed by experimental HRTEM
EP  - 648
SP  - 633
VL  - 199
DO  - 10.1016/j.actamat.2020.08.035
ER  - 

@article{
author = "Ribić, Vesna and Recnik, Aleksander and Komelj, Matej and Kokalj, Anton and Branković, Zorica and Zlatović, Mario and Branković, Goran",
year = "2020",
abstract = "Today, ab-initio calculations are becoming a powerful tool to perform virtual experiments that have the capacity to predict and to reproduce experimentally observed non-periodic features, such as interfaces, that are responsible for quantum properties of materials. In our paper we investigate 2D quantum-well structures, known as inversion boundaries OM. Combining atomistic modeling, DFT calculations and HRTEM analysis we provide a new fundamental insight into the structure and stability of Sb-rich basal-plane IBs in ZnO. DFT screening for potential IB model was based on the known stacking deviations in originating wurtzite structure. The results show that the model with A beta-B alpha-A beta C-gamma B-beta C sequence (IB3) is the most stable translation for Sb-doping, as opposed to previously accepted A beta-B alpha-A beta C-gamma A-alpha C (IB2) model. The key to the stability of IB structures has been found to lie in their cationic stacking. We show that the energies of constituting stacking segments can be used to predict the stability of new IB structures without the need of further ab-initio calculations. DFT optimized models of IBs accurately predict the experimentally observed IB structures with lateral relaxations down to a precision of similar to 1 pm. The newly determined cation sublattice expansions for experimentally confirmed IB2 and IB3 models, Delta(IB(zn-zn)) are +81 pm and +77 pm, whereas the corresponding O-sublattice contractions Delta(IB(0-0)) are -53 pm and -57 pm, respectively. The refined structures will help to solve open questions related to their role in electron transport, phonon scattering, p-type conductivity, affinity of dopants to generate IBs and the underlying formation mechanisms, whereas the excellent match between the calculations and experiment demonstrated in our study opens new perspectives for prediction of such properties from first principles.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Acta Materialia",
title = "New inversion boundary structure in Sb-doped ZnO predicted by DFT calculations and confirmed by experimental HRTEM",
pages = "648-633",
volume = "199",
doi = "10.1016/j.actamat.2020.08.035"
}

Ribić, V., Recnik, A., Komelj, M., Kokalj, A., Branković, Z., Zlatović, M.,& Branković, G.. (2020). New inversion boundary structure in Sb-doped ZnO predicted by DFT calculations and confirmed by experimental HRTEM. in Acta Materialia
Pergamon-Elsevier Science Ltd, Oxford., 199, 633-648.
https://doi.org/10.1016/j.actamat.2020.08.035

Ribić V, Recnik A, Komelj M, Kokalj A, Branković Z, Zlatović M, Branković G. New inversion boundary structure in Sb-doped ZnO predicted by DFT calculations and confirmed by experimental HRTEM. in Acta Materialia. 2020;199:633-648.
doi:10.1016/j.actamat.2020.08.035 .

Ribić, Vesna, Recnik, Aleksander, Komelj, Matej, Kokalj, Anton, Branković, Zorica, Zlatović, Mario, Branković, Goran, "New inversion boundary structure in Sb-doped ZnO predicted by DFT calculations and confirmed by experimental HRTEM" in Acta Materialia, 199 (2020):633-648,
https://doi.org/10.1016/j.actamat.2020.08.035 . .

TY  - JOUR
AU  - Vuković, Marina
AU  - Branković, Zorica
AU  - Poleti, Dejan
AU  - Recnik, Aleksander
AU  - Branković, Goran
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/782
AB  - Several methods with solid and dissolved reactants were investigated as possible routes for synthesis of single-phase valentinite Sb2O3. The methods are based on simple chemical reaction between SbCl3 and NaOH. The method with solid state reactants was established on self-propagating room temperature reaction (SPRT), while wet syntheses were based on the same chemical reaction, and performed in either distilled water or absolute ethanol. The prepared powders were characterized by X-ray powder diffraction, scanning electron microscopy and field emission scanning electron microscopy, high-resolution transmission electron microscopy, selected area electron diffraction (SAED) and UV/vis diffuse reflectance spectroscopy. SPRT and aqueous solution syntheses resulted in single-phase valentinite Sb2O3, but with significantly different morphologies. In the case of SPRT method the obtained powder contains well crystallized prismatic shaped submicronic particles, with hexagonal or lozenge basis typical for valentinite crystal structure, while aqueous solution synthesis resulted in powder containing micronic agglomerates. The ethanolic solution synthesis product was Sb2O3 with cubic senarmontite as predominant phase and traces of orthorhombic valentinite. It was confirmed that not only the aggregate state, but also the choice of solvent has a great influence on the structural and optical characteristics of synthesized Sb2O3 powders.
PB  - Springer, Dordrecht
T2  - Journal of Sol-Gel Science and Technology
T1  - Novel simple methods for the synthesis of single-phase valentinite Sb2O3
EP  - 533
IS  - 3
SP  - 527
VL  - 72
DO  - 10.1007/s10971-014-3469-3
ER  - 

@article{
author = "Vuković, Marina and Branković, Zorica and Poleti, Dejan and Recnik, Aleksander and Branković, Goran",
year = "2014",
abstract = "Several methods with solid and dissolved reactants were investigated as possible routes for synthesis of single-phase valentinite Sb2O3. The methods are based on simple chemical reaction between SbCl3 and NaOH. The method with solid state reactants was established on self-propagating room temperature reaction (SPRT), while wet syntheses were based on the same chemical reaction, and performed in either distilled water or absolute ethanol. The prepared powders were characterized by X-ray powder diffraction, scanning electron microscopy and field emission scanning electron microscopy, high-resolution transmission electron microscopy, selected area electron diffraction (SAED) and UV/vis diffuse reflectance spectroscopy. SPRT and aqueous solution syntheses resulted in single-phase valentinite Sb2O3, but with significantly different morphologies. In the case of SPRT method the obtained powder contains well crystallized prismatic shaped submicronic particles, with hexagonal or lozenge basis typical for valentinite crystal structure, while aqueous solution synthesis resulted in powder containing micronic agglomerates. The ethanolic solution synthesis product was Sb2O3 with cubic senarmontite as predominant phase and traces of orthorhombic valentinite. It was confirmed that not only the aggregate state, but also the choice of solvent has a great influence on the structural and optical characteristics of synthesized Sb2O3 powders.",
publisher = "Springer, Dordrecht",
journal = "Journal of Sol-Gel Science and Technology",
title = "Novel simple methods for the synthesis of single-phase valentinite Sb2O3",
pages = "533-527",
number = "3",
volume = "72",
doi = "10.1007/s10971-014-3469-3"
}

Vuković, M., Branković, Z., Poleti, D., Recnik, A.,& Branković, G.. (2014). Novel simple methods for the synthesis of single-phase valentinite Sb2O3. in Journal of Sol-Gel Science and Technology
Springer, Dordrecht., 72(3), 527-533.
https://doi.org/10.1007/s10971-014-3469-3

Vuković M, Branković Z, Poleti D, Recnik A, Branković G. Novel simple methods for the synthesis of single-phase valentinite Sb2O3. in Journal of Sol-Gel Science and Technology. 2014;72(3):527-533.
doi:10.1007/s10971-014-3469-3 .

Vuković, Marina, Branković, Zorica, Poleti, Dejan, Recnik, Aleksander, Branković, Goran, "Novel simple methods for the synthesis of single-phase valentinite Sb2O3" in Journal of Sol-Gel Science and Technology, 72, no. 3 (2014):527-533,
https://doi.org/10.1007/s10971-014-3469-3 . .

TY  - JOUR
AU  - Ćirković, Jovana
AU  - Vojisavljević, Katarina
AU  - Šćepanović, Maja
AU  - Recnik, Aleksander
AU  - Branković, Goran
AU  - Branković, Zorica
AU  - Srećković, Tatjana
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/710
AB  - Barium strontium titanate was obtained by hydrothermal treatment of barium strontium titanate citric precursor solution, previously prepared by complex polymerization method. The thermally induced phase evolution was followed at various temperatures up to 800 A degrees C using thermogravimetric and differential thermal analysis, X-ray diffraction analysis, and Raman spectroscopy. Microstructural characterization of barium strontium titanate powders was performed by scanning and transmission electron microscopy. The proposed synthesis route has been proven as a better and faster method for barium strontium titanate powder preparation as compared to the conventional complex polymerization route. The method was found efficient for production of low agglomerated, fine, nanosized barium strontium titanate powder with well defined stoichiometry, and sub-micron particle size. The results of structural and microstructural characterization showed the complete crystallization of carbonate-free barium strontium titanate powder at 700 A degrees C with an average size of crystallites below 50 nm.
PB  - Springer, Dordrecht
T2  - Journal of Sol-Gel Science and Technology
T1  - Hydrothermally assisted complex polymerization method for barium strontium titanate powder synthesis
EP  - 129
IS  - 2
SP  - 121
VL  - 65
DO  - 10.1007/s10971-012-2915-3
ER  - 

@article{
author = "Ćirković, Jovana and Vojisavljević, Katarina and Šćepanović, Maja and Recnik, Aleksander and Branković, Goran and Branković, Zorica and Srećković, Tatjana",
year = "2013",
abstract = "Barium strontium titanate was obtained by hydrothermal treatment of barium strontium titanate citric precursor solution, previously prepared by complex polymerization method. The thermally induced phase evolution was followed at various temperatures up to 800 A degrees C using thermogravimetric and differential thermal analysis, X-ray diffraction analysis, and Raman spectroscopy. Microstructural characterization of barium strontium titanate powders was performed by scanning and transmission electron microscopy. The proposed synthesis route has been proven as a better and faster method for barium strontium titanate powder preparation as compared to the conventional complex polymerization route. The method was found efficient for production of low agglomerated, fine, nanosized barium strontium titanate powder with well defined stoichiometry, and sub-micron particle size. The results of structural and microstructural characterization showed the complete crystallization of carbonate-free barium strontium titanate powder at 700 A degrees C with an average size of crystallites below 50 nm.",
publisher = "Springer, Dordrecht",
journal = "Journal of Sol-Gel Science and Technology",
title = "Hydrothermally assisted complex polymerization method for barium strontium titanate powder synthesis",
pages = "129-121",
number = "2",
volume = "65",
doi = "10.1007/s10971-012-2915-3"
}

Ćirković, J., Vojisavljević, K., Šćepanović, M., Recnik, A., Branković, G., Branković, Z.,& Srećković, T.. (2013). Hydrothermally assisted complex polymerization method for barium strontium titanate powder synthesis. in Journal of Sol-Gel Science and Technology
Springer, Dordrecht., 65(2), 121-129.
https://doi.org/10.1007/s10971-012-2915-3

Ćirković J, Vojisavljević K, Šćepanović M, Recnik A, Branković G, Branković Z, Srećković T. Hydrothermally assisted complex polymerization method for barium strontium titanate powder synthesis. in Journal of Sol-Gel Science and Technology. 2013;65(2):121-129.
doi:10.1007/s10971-012-2915-3 .

Ćirković, Jovana, Vojisavljević, Katarina, Šćepanović, Maja, Recnik, Aleksander, Branković, Goran, Branković, Zorica, Srećković, Tatjana, "Hydrothermally assisted complex polymerization method for barium strontium titanate powder synthesis" in Journal of Sol-Gel Science and Technology, 65, no. 2 (2013):121-129,
https://doi.org/10.1007/s10971-012-2915-3 . .

TY  - JOUR
AU  - Marinković Stanojević, Zorica
AU  - Branković, Zorica
AU  - Jaglicic, Zvonko
AU  - Jagodic, M
AU  - Mančić, Lidija T
AU  - Bernik, Slavko
AU  - Recnik, Aleksander
AU  - Branković, Goran
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/463
AB  - We have studied the formation of BiMnO3 (BMO) nanocrystalline perovskite powder produced by high-energy milling of the constituent oxides. The crystal structure and the amount of crystalline and amorphous phases in the powder as a function of the milling time were determined with XRPD using Rietveld refinement. BMO perovskite formed directly from highly activated nano-sized constituent oxides after 240 min of milling and subsequently grew during prolonged milling. The morphology, structure, and chemical composition of the powder were investigated by SEM and TEM. A clear ferromagnetic transition was observed at T (C) similar to 66 K for a sample milled for 240 min and increased with milling time. The magnetic hysteresis behavior is similar to that of a soft ferromagnet. The magnetic properties of the obtained BMO powders were found to change as a function of milling time in a manner consistent with variations in the nanocomposite microstructure.
PB  - Springer, Dordrecht
T2  - Journal of Nanoparticle Research
T1  - Structural and magnetic properties of nanocrystalline bismuth manganite obtained by mechanochemical synthesis
EP  - 3439
IS  - 8
SP  - 3431
VL  - 13
DO  - 10.1007/s11051-011-0265-7
ER  - 

@article{
author = "Marinković Stanojević, Zorica and Branković, Zorica and Jaglicic, Zvonko and Jagodic, M and Mančić, Lidija T and Bernik, Slavko and Recnik, Aleksander and Branković, Goran",
year = "2011",
abstract = "We have studied the formation of BiMnO3 (BMO) nanocrystalline perovskite powder produced by high-energy milling of the constituent oxides. The crystal structure and the amount of crystalline and amorphous phases in the powder as a function of the milling time were determined with XRPD using Rietveld refinement. BMO perovskite formed directly from highly activated nano-sized constituent oxides after 240 min of milling and subsequently grew during prolonged milling. The morphology, structure, and chemical composition of the powder were investigated by SEM and TEM. A clear ferromagnetic transition was observed at T (C) similar to 66 K for a sample milled for 240 min and increased with milling time. The magnetic hysteresis behavior is similar to that of a soft ferromagnet. The magnetic properties of the obtained BMO powders were found to change as a function of milling time in a manner consistent with variations in the nanocomposite microstructure.",
publisher = "Springer, Dordrecht",
journal = "Journal of Nanoparticle Research",
title = "Structural and magnetic properties of nanocrystalline bismuth manganite obtained by mechanochemical synthesis",
pages = "3439-3431",
number = "8",
volume = "13",
doi = "10.1007/s11051-011-0265-7"
}

Marinković Stanojević, Z., Branković, Z., Jaglicic, Z., Jagodic, M., Mančić, L. T., Bernik, S., Recnik, A.,& Branković, G.. (2011). Structural and magnetic properties of nanocrystalline bismuth manganite obtained by mechanochemical synthesis. in Journal of Nanoparticle Research
Springer, Dordrecht., 13(8), 3431-3439.
https://doi.org/10.1007/s11051-011-0265-7

Marinković Stanojević Z, Branković Z, Jaglicic Z, Jagodic M, Mančić LT, Bernik S, Recnik A, Branković G. Structural and magnetic properties of nanocrystalline bismuth manganite obtained by mechanochemical synthesis. in Journal of Nanoparticle Research. 2011;13(8):3431-3439.
doi:10.1007/s11051-011-0265-7 .

Marinković Stanojević, Zorica, Branković, Zorica, Jaglicic, Zvonko, Jagodic, M, Mančić, Lidija T, Bernik, Slavko, Recnik, Aleksander, Branković, Goran, "Structural and magnetic properties of nanocrystalline bismuth manganite obtained by mechanochemical synthesis" in Journal of Nanoparticle Research, 13, no. 8 (2011):3431-3439,
https://doi.org/10.1007/s11051-011-0265-7 . .

TY  - JOUR
AU  - Luković Golić, Danijela
AU  - Branković, Goran
AU  - Počuča-Nešić, Milica
AU  - Vojisavljević, Katarina
AU  - Recnik, Aleksander
AU  - Daneu, Nina
AU  - Bernik, Slavko
AU  - Šćepanović, Maja
AU  - Poleti, Dejan
AU  - Branković, Zorica
PY  - 2011
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/469
AB  - Zinc oxide nanopowders were synthesized by the sol-gel method from an ethanol solution of zinc acetate dihydrate. Detailed structural and microstructural investigations were carried out using x-ray diffraction, Raman spectroscopy, thermogravimetric and differential thermal analyses, as well as high-resolution transmission electron microscopy (TEM) and field-emission scanning electron microscopy. The intermediate compound of the reaction was layered zinc hydroxide acetate that further transforms into hexagonally shaped ZnO crystalline nanoplates (d(m) = 4 nm), which aggregate into larger spherical particles. According to the TEM analysis the ZnO nanoparticles were self-assembled into larger particles with the same orientation, i.e. aligned lattice planes of the particles. A further solvothermal treatment resulted in hexagonal, prismatic ZnO mesocrystals.
PB  - IOP Publishing Ltd, Bristol
T2  - Nanotechnology
T1  - Structural characterization of self-assembled ZnO nanoparticles obtained by the sol-gel method from Zn(CH3COO)(2)center dot 2H(2)O
IS  - 39
VL  - 22
DO  - 10.1088/0957-4484/22/39/395603
ER  - 

@article{
author = "Luković Golić, Danijela and Branković, Goran and Počuča-Nešić, Milica and Vojisavljević, Katarina and Recnik, Aleksander and Daneu, Nina and Bernik, Slavko and Šćepanović, Maja and Poleti, Dejan and Branković, Zorica",
year = "2011",
abstract = "Zinc oxide nanopowders were synthesized by the sol-gel method from an ethanol solution of zinc acetate dihydrate. Detailed structural and microstructural investigations were carried out using x-ray diffraction, Raman spectroscopy, thermogravimetric and differential thermal analyses, as well as high-resolution transmission electron microscopy (TEM) and field-emission scanning electron microscopy. The intermediate compound of the reaction was layered zinc hydroxide acetate that further transforms into hexagonally shaped ZnO crystalline nanoplates (d(m) = 4 nm), which aggregate into larger spherical particles. According to the TEM analysis the ZnO nanoparticles were self-assembled into larger particles with the same orientation, i.e. aligned lattice planes of the particles. A further solvothermal treatment resulted in hexagonal, prismatic ZnO mesocrystals.",
publisher = "IOP Publishing Ltd, Bristol",
journal = "Nanotechnology",
title = "Structural characterization of self-assembled ZnO nanoparticles obtained by the sol-gel method from Zn(CH3COO)(2)center dot 2H(2)O",
number = "39",
volume = "22",
doi = "10.1088/0957-4484/22/39/395603"
}

Luković Golić, D., Branković, G., Počuča-Nešić, M., Vojisavljević, K., Recnik, A., Daneu, N., Bernik, S., Šćepanović, M., Poleti, D.,& Branković, Z.. (2011). Structural characterization of self-assembled ZnO nanoparticles obtained by the sol-gel method from Zn(CH3COO)(2)center dot 2H(2)O. in Nanotechnology
IOP Publishing Ltd, Bristol., 22(39).
https://doi.org/10.1088/0957-4484/22/39/395603

Luković Golić D, Branković G, Počuča-Nešić M, Vojisavljević K, Recnik A, Daneu N, Bernik S, Šćepanović M, Poleti D, Branković Z. Structural characterization of self-assembled ZnO nanoparticles obtained by the sol-gel method from Zn(CH3COO)(2)center dot 2H(2)O. in Nanotechnology. 2011;22(39).
doi:10.1088/0957-4484/22/39/395603 .

Luković Golić, Danijela, Branković, Goran, Počuča-Nešić, Milica, Vojisavljević, Katarina, Recnik, Aleksander, Daneu, Nina, Bernik, Slavko, Šćepanović, Maja, Poleti, Dejan, Branković, Zorica, "Structural characterization of self-assembled ZnO nanoparticles obtained by the sol-gel method from Zn(CH3COO)(2)center dot 2H(2)O" in Nanotechnology, 22, no. 39 (2011),
https://doi.org/10.1088/0957-4484/22/39/395603 . .

TY  - JOUR
AU  - Vojisavljević, Katarina
AU  - Branković, Goran
AU  - Srećković, Tatjana
AU  - Recnik, Aleksander
AU  - Branković, Zorica
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/423
AB  - Ultrathin PZT film was prepared using a chemical solution deposition method from polymeric citrate precursors. The PZT solution was spin-coated on an amorphous silica layer formed on a Si(l 0 0) substrate. The films were thermally treated from the substrate side with a low heating rate (1 degrees/min) up to 700 degrees C and finally annealed for 10 h. Ultrathin PZT films without microstructural instability were prepared in spite of high temperature and long annealing time. AFM and HRTEM investigations revealed the formation of a well-developed dense microstructure consisting of spherical crystallites (4-7 nm). Low roughness (2.2 nm) of a similar to 26 nm thick layer was obtained for a two-layered PZT film. The grazing incidence X-ray diffraction (GIXRD) measurements confirmed the polycrystalline structure of ultrathin PZT films. Also, GIXRD and electron energy dispersive X-ray (EDS) analysis showed that compositional variations were smaller than expected, in spite of the long annealing time.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - Preparation of ultrathin PZT films by a chemical solution deposition method from a polymeric citrate precursor
EP  - 488
IS  - 2
SP  - 485
VL  - 30
DO  - 10.1016/j.jeurceramsoc.2009.07.023
ER  - 

@article{
author = "Vojisavljević, Katarina and Branković, Goran and Srećković, Tatjana and Recnik, Aleksander and Branković, Zorica",
year = "2010",
abstract = "Ultrathin PZT film was prepared using a chemical solution deposition method from polymeric citrate precursors. The PZT solution was spin-coated on an amorphous silica layer formed on a Si(l 0 0) substrate. The films were thermally treated from the substrate side with a low heating rate (1 degrees/min) up to 700 degrees C and finally annealed for 10 h. Ultrathin PZT films without microstructural instability were prepared in spite of high temperature and long annealing time. AFM and HRTEM investigations revealed the formation of a well-developed dense microstructure consisting of spherical crystallites (4-7 nm). Low roughness (2.2 nm) of a similar to 26 nm thick layer was obtained for a two-layered PZT film. The grazing incidence X-ray diffraction (GIXRD) measurements confirmed the polycrystalline structure of ultrathin PZT films. Also, GIXRD and electron energy dispersive X-ray (EDS) analysis showed that compositional variations were smaller than expected, in spite of the long annealing time.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "Preparation of ultrathin PZT films by a chemical solution deposition method from a polymeric citrate precursor",
pages = "488-485",
number = "2",
volume = "30",
doi = "10.1016/j.jeurceramsoc.2009.07.023"
}

Vojisavljević, K., Branković, G., Srećković, T., Recnik, A.,& Branković, Z.. (2010). Preparation of ultrathin PZT films by a chemical solution deposition method from a polymeric citrate precursor. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 30(2), 485-488.
https://doi.org/10.1016/j.jeurceramsoc.2009.07.023

Vojisavljević K, Branković G, Srećković T, Recnik A, Branković Z. Preparation of ultrathin PZT films by a chemical solution deposition method from a polymeric citrate precursor. in Journal of the European Ceramic Society. 2010;30(2):485-488.
doi:10.1016/j.jeurceramsoc.2009.07.023 .

Vojisavljević, Katarina, Branković, Goran, Srećković, Tatjana, Recnik, Aleksander, Branković, Zorica, "Preparation of ultrathin PZT films by a chemical solution deposition method from a polymeric citrate precursor" in Journal of the European Ceramic Society, 30, no. 2 (2010):485-488,
https://doi.org/10.1016/j.jeurceramsoc.2009.07.023 . .

TY  - JOUR
AU  - Jović, Vladimir D
AU  - Jović, Borka M
AU  - Lačnjevac, Uroš
AU  - Branković, Goran
AU  - Bernik, Slavko
AU  - Recnik, Aleksander
PY  - 2010
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/400
AB  - The Mo-Ni-O powders were electrodeposited from ammonium sulfate containing electrolytes with different Mo/Ni ion concentration ratios. The phase composition of these powders was investigated using TEM. EDS and XRD analysis. The TEM analysis showed that two types of particles were present in the powders: amorphous and crystalline. For crystalline particles it was found that two phases, MoO3 and MoNi4 prevail in all powders, while the NiO phase was detected in the powder electrodeposited at Mo/Ni = 0.3/1. These findings are in good agreement with our previous results where MoO3, MoNi4 and NiMoO4 phases were detected in the recrystallized Mo-Ni-O powders. In this work we discovered that the NiMoO4 phase was formed by solid state reaction between NiO and MoO3 at elevated temperature.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - An attempt to predict the mechanism of Mo-Ni-O powders electrodeposition from the results of their TEM analysis
EP  - 4193
IS  - 13
SP  - 4188
VL  - 55
DO  - 10.1016/j.electacta.2010.02.065
ER  - 

@article{
author = "Jović, Vladimir D and Jović, Borka M and Lačnjevac, Uroš and Branković, Goran and Bernik, Slavko and Recnik, Aleksander",
year = "2010",
abstract = "The Mo-Ni-O powders were electrodeposited from ammonium sulfate containing electrolytes with different Mo/Ni ion concentration ratios. The phase composition of these powders was investigated using TEM. EDS and XRD analysis. The TEM analysis showed that two types of particles were present in the powders: amorphous and crystalline. For crystalline particles it was found that two phases, MoO3 and MoNi4 prevail in all powders, while the NiO phase was detected in the powder electrodeposited at Mo/Ni = 0.3/1. These findings are in good agreement with our previous results where MoO3, MoNi4 and NiMoO4 phases were detected in the recrystallized Mo-Ni-O powders. In this work we discovered that the NiMoO4 phase was formed by solid state reaction between NiO and MoO3 at elevated temperature.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "An attempt to predict the mechanism of Mo-Ni-O powders electrodeposition from the results of their TEM analysis",
pages = "4193-4188",
number = "13",
volume = "55",
doi = "10.1016/j.electacta.2010.02.065"
}

Jović, V. D., Jović, B. M., Lačnjevac, U., Branković, G., Bernik, S.,& Recnik, A.. (2010). An attempt to predict the mechanism of Mo-Ni-O powders electrodeposition from the results of their TEM analysis. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 55(13), 4188-4193.
https://doi.org/10.1016/j.electacta.2010.02.065

Jović VD, Jović BM, Lačnjevac U, Branković G, Bernik S, Recnik A. An attempt to predict the mechanism of Mo-Ni-O powders electrodeposition from the results of their TEM analysis. in Electrochimica Acta. 2010;55(13):4188-4193.
doi:10.1016/j.electacta.2010.02.065 .

Jović, Vladimir D, Jović, Borka M, Lačnjevac, Uroš, Branković, Goran, Bernik, Slavko, Recnik, Aleksander, "An attempt to predict the mechanism of Mo-Ni-O powders electrodeposition from the results of their TEM analysis" in Electrochimica Acta, 55, no. 13 (2010):4188-4193,
https://doi.org/10.1016/j.electacta.2010.02.065 . .