TY  - CONF
AU  - Ilić, Nikola
AU  - Amoresi, R.C.
AU  - Zanetti, S.M.
AU  - Spasojevic, Vojislav
AU  - Ferreira Teixeira, Guilhermina
AU  - Bobić, Jelena
AU  - ZAGHETE, MARIA
AU  - Stojanović, Biljana
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2603
AB  - Thin films of BiFeO3 and doped BiFeO3 were prepared by chemical solution deposition method. Because of low electrical resistivity of BiFeO3 which often prevents it to exhibit ferroelectric properties, several elements were used as dopants, partially replacing Bi3+ (Y3+, Sr2+) or Fe3+ (Ti4+, Zr4+) ions. Dopants may also reduce the size of the grains improving the magnetic properties.
Pure BiFeO3 phase was formed for all compositions without preferred orientation. All films are around 300 nm thick, with relatively densely packed round grains of the size well below 100 nm as it is presented with micrographies in Fig. 1. Some of the dopants have lowered the size of the grains and increased electrical resistivity enough for ferroelectric hysteresis to be measured at fields above 100 kV/cm
PB  - Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia
C3  - 12th Conference for young scientists in ceramics, October 18-21, 2017, Novi Sad
T1  - BiFeO3 THIN FILMS: INFLUENCE OF DOPING ON STRUCTURE AND PROPRETIES
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2603
ER  - 

@conference{
author = "Ilić, Nikola and Amoresi, R.C. and Zanetti, S.M. and Spasojevic, Vojislav and Ferreira Teixeira, Guilhermina and Bobić, Jelena and ZAGHETE, MARIA and Stojanović, Biljana",
year = "2017",
abstract = "Thin films of BiFeO3 and doped BiFeO3 were prepared by chemical solution deposition method. Because of low electrical resistivity of BiFeO3 which often prevents it to exhibit ferroelectric properties, several elements were used as dopants, partially replacing Bi3+ (Y3+, Sr2+) or Fe3+ (Ti4+, Zr4+) ions. Dopants may also reduce the size of the grains improving the magnetic properties.
Pure BiFeO3 phase was formed for all compositions without preferred orientation. All films are around 300 nm thick, with relatively densely packed round grains of the size well below 100 nm as it is presented with micrographies in Fig. 1. Some of the dopants have lowered the size of the grains and increased electrical resistivity enough for ferroelectric hysteresis to be measured at fields above 100 kV/cm",
publisher = "Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia",
journal = "12th Conference for young scientists in ceramics, October 18-21, 2017, Novi Sad",
title = "BiFeO3 THIN FILMS: INFLUENCE OF DOPING ON STRUCTURE AND PROPRETIES",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2603"
}

Ilić, N., Amoresi, R.C., Zanetti, S.M., Spasojevic, V., Ferreira Teixeira, G., Bobić, J., ZAGHETE, M.,& Stojanović, B.. (2017). BiFeO3 THIN FILMS: INFLUENCE OF DOPING ON STRUCTURE AND PROPRETIES. in 12th Conference for young scientists in ceramics, October 18-21, 2017, Novi Sad
Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia..
https://hdl.handle.net/21.15107/rcub_rimsi_2603

Ilić N, Amoresi R, Zanetti S, Spasojevic V, Ferreira Teixeira G, Bobić J, ZAGHETE M, Stojanović B. BiFeO3 THIN FILMS: INFLUENCE OF DOPING ON STRUCTURE AND PROPRETIES. in 12th Conference for young scientists in ceramics, October 18-21, 2017, Novi Sad. 2017;.
https://hdl.handle.net/21.15107/rcub_rimsi_2603 .

Ilić, Nikola, Amoresi, R.C., Zanetti, S.M., Spasojevic, Vojislav, Ferreira Teixeira, Guilhermina, Bobić, Jelena, ZAGHETE, MARIA, Stojanović, Biljana, "BiFeO3 THIN FILMS: INFLUENCE OF DOPING ON STRUCTURE AND PROPRETIES" in 12th Conference for young scientists in ceramics, October 18-21, 2017, Novi Sad (2017),
https://hdl.handle.net/21.15107/rcub_rimsi_2603 .

TY  - CONF
AU  - Ferreira Teixeira, Guilhermina
AU  - Džunuzović, Adis
AU  - Lustosa, G.M.M.M.
AU  - Amoresi, R.C.
AU  - Vijatović Petrović, Mirjana
AU  - ZAGHETE, MARIA
AU  - Stojanović, Biljana
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2614
AB  - Ferroics and multiferroics are among the most attractive multifunctional materials. In recent years, multiferroic composite consisted of two or more ferroic orders, such as ferroelectric, ferromagnetic, or ferroelastic, in which coupling between these phases can produce magnetoelectric effect, has been drawing significant attention. Besides others, (Ni, Zn)Fe2O4-BaTiO3 composites have attracted considerable attention not only due to fundamental research of magneto-electric effect, but also for the potential applications in many electronic devices such as drug delivery, heterogeneous catalysis, levitated railway system, magnetic-refrigeration, microwave devices, antennas, memory devices, etc. In this composite, (Ni,Zn)Fe2O4(NZF) possesses magnetic behavior, and the ferroelectricity is due to the presence of BaTiO3 (BT). In the present work, it was investigated the structural and photoluminiscence properties of NZF-BT composite nanopowders prepared by auto-combution method and the different ratio of NZF/BT was explored. XRD indicated well cristallized powders but with small presence of secondary phases respecting to BT. By FE-SEM analyses was noticed the agglomerates with wide particles size distribution, as well as the difference of the particles morphology between (Ni,Zn)Fe2O4 and BaTiO3. FT-IR spectra display interactions between metal-oxygen around 500-600 cm-1. The different ratio of NZF/BT effects on the optical band gap values indicating the formation of intermediary levels modifying the Fermi level. Photoluminescence (PL) analysis provides important information about the materials structures, however the PL behavior of these composites is not very well known. The presence of PL emission suggests that the structures of the materials are medium range disordered. All samples showed a broad band emission centered around 450 nm, being a region characteristic of resultant emission from the presence of shallow defects in materials structures. This behavior is reinforced by deconvolution of PL bands, which shows the contribution of tree sub bands to emission (blue, green and yellow emission), being that the largest area of spectra is occupied by a band correspondent to blue emission.
PB  - Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia
C3  - 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017
T1  - STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2614
ER  - 

@conference{
author = "Ferreira Teixeira, Guilhermina and Džunuzović, Adis and Lustosa, G.M.M.M. and Amoresi, R.C. and Vijatović Petrović, Mirjana and ZAGHETE, MARIA and Stojanović, Biljana",
year = "2017",
abstract = "Ferroics and multiferroics are among the most attractive multifunctional materials. In recent years, multiferroic composite consisted of two or more ferroic orders, such as ferroelectric, ferromagnetic, or ferroelastic, in which coupling between these phases can produce magnetoelectric effect, has been drawing significant attention. Besides others, (Ni, Zn)Fe2O4-BaTiO3 composites have attracted considerable attention not only due to fundamental research of magneto-electric effect, but also for the potential applications in many electronic devices such as drug delivery, heterogeneous catalysis, levitated railway system, magnetic-refrigeration, microwave devices, antennas, memory devices, etc. In this composite, (Ni,Zn)Fe2O4(NZF) possesses magnetic behavior, and the ferroelectricity is due to the presence of BaTiO3 (BT). In the present work, it was investigated the structural and photoluminiscence properties of NZF-BT composite nanopowders prepared by auto-combution method and the different ratio of NZF/BT was explored. XRD indicated well cristallized powders but with small presence of secondary phases respecting to BT. By FE-SEM analyses was noticed the agglomerates with wide particles size distribution, as well as the difference of the particles morphology between (Ni,Zn)Fe2O4 and BaTiO3. FT-IR spectra display interactions between metal-oxygen around 500-600 cm-1. The different ratio of NZF/BT effects on the optical band gap values indicating the formation of intermediary levels modifying the Fermi level. Photoluminescence (PL) analysis provides important information about the materials structures, however the PL behavior of these composites is not very well known. The presence of PL emission suggests that the structures of the materials are medium range disordered. All samples showed a broad band emission centered around 450 nm, being a region characteristic of resultant emission from the presence of shallow defects in materials structures. This behavior is reinforced by deconvolution of PL bands, which shows the contribution of tree sub bands to emission (blue, green and yellow emission), being that the largest area of spectra is occupied by a band correspondent to blue emission.",
publisher = "Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia",
journal = "12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017",
title = "STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2614"
}

Ferreira Teixeira, G., Džunuzović, A., Lustosa, G.M.M.M., Amoresi, R.C., Vijatović Petrović, M., ZAGHETE, M.,& Stojanović, B.. (2017). STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS. in 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017
Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia..
https://hdl.handle.net/21.15107/rcub_rimsi_2614

Ferreira Teixeira G, Džunuzović A, Lustosa G, Amoresi R, Vijatović Petrović M, ZAGHETE M, Stojanović B. STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS. in 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017. 2017;.
https://hdl.handle.net/21.15107/rcub_rimsi_2614 .

Ferreira Teixeira, Guilhermina, Džunuzović, Adis, Lustosa, G.M.M.M., Amoresi, R.C., Vijatović Petrović, Mirjana, ZAGHETE, MARIA, Stojanović, Biljana, "STRUCTURAL AND PHOTOLUMINESCENCE PROPERTIES OF THE (Ni,Zn) Fe2O4-BaTiO3 MULTIFERROIC COMPOSITE NANOPOWDERS" in 12th Conference for Young Scientists in Ceramics, CYSC-2017 Novi Sad, Serbia, October 18-21, 2017 (2017),
https://hdl.handle.net/21.15107/rcub_rimsi_2614 .