TY  - JOUR
AU  - Bobić, Jelena
AU  - Ilić, Nikola
AU  - Despotovic, Zeljko V.
AU  - Džunuzović, Adis
AU  - Grigalaitis, Robertas
AU  - Stijepovic, Ivan
AU  - Stojanovic, Biljana
AU  - Vijatović Petrović, Mirjana
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2124
AB  - For the last several decades, energy harvesters based on piezoelectricity from mechanical
vibration have emerged as very promising devices that are being explored extensively for their
functionality in energy technologies. In this paper, a series of flexible lead-free BaZr0.2Ti0.8O3
(BZT)/PVDF and lead-based PbZr0.52Ti0.48O3 (PZT)/PVDF piezocomposites with variable filler
content up to 50 vol% were prepared by a hot pressing method. The structure and morphology
of the BZT and PZT powders, as well as the distribution of the piezo-active filler in the obtained
flexible films were characterized by XRD and SEM analysis. In addition, the remnant polarization
(Pr) and leakage current were also investigated to evaluate the breakdown strength in both types of flexible films. The calculations of storage energies and output voltage obtained for the investigated materials revealed an increasing trend with an increasing amount of BZT and PZT active phases.
The maximum storage energy of 0.42 J/cm3 (and energy efficiency of 40.7 %) was obtained for the
PZT–PVDF (40–60) films, while the maximum output voltage of about 10 V (~10 μA) was obtained
for the PZT–PVDF (50–50) flexible film. In addition, a comparison between the properties of the
lead-based and lead-free flexible films, as well as the potential use of these films as energy storage and energy harvesting systems were analyzed.
PB  - MDPI, Basel, Switzerland
T2  - Crystals
T1  - Properties and Potential Application of Lead-Free (BaZr0.2Ti0.8O3) and Lead-Based (PbZr0.52Ti0.48O3) Flexible Thick Films
IS  - 8
SP  - 1178
VL  - 13
DO  - 10.3390/cryst13081178
ER  - 

@article{
author = "Bobić, Jelena and Ilić, Nikola and Despotovic, Zeljko V. and Džunuzović, Adis and Grigalaitis, Robertas and Stijepovic, Ivan and Stojanovic, Biljana and Vijatović Petrović, Mirjana",
year = "2023",
abstract = "For the last several decades, energy harvesters based on piezoelectricity from mechanical
vibration have emerged as very promising devices that are being explored extensively for their
functionality in energy technologies. In this paper, a series of flexible lead-free BaZr0.2Ti0.8O3
(BZT)/PVDF and lead-based PbZr0.52Ti0.48O3 (PZT)/PVDF piezocomposites with variable filler
content up to 50 vol% were prepared by a hot pressing method. The structure and morphology
of the BZT and PZT powders, as well as the distribution of the piezo-active filler in the obtained
flexible films were characterized by XRD and SEM analysis. In addition, the remnant polarization
(Pr) and leakage current were also investigated to evaluate the breakdown strength in both types of flexible films. The calculations of storage energies and output voltage obtained for the investigated materials revealed an increasing trend with an increasing amount of BZT and PZT active phases.
The maximum storage energy of 0.42 J/cm3 (and energy efficiency of 40.7 %) was obtained for the
PZT–PVDF (40–60) films, while the maximum output voltage of about 10 V (~10 μA) was obtained
for the PZT–PVDF (50–50) flexible film. In addition, a comparison between the properties of the
lead-based and lead-free flexible films, as well as the potential use of these films as energy storage and energy harvesting systems were analyzed.",
publisher = "MDPI, Basel, Switzerland",
journal = "Crystals",
title = "Properties and Potential Application of Lead-Free (BaZr0.2Ti0.8O3) and Lead-Based (PbZr0.52Ti0.48O3) Flexible Thick Films",
number = "8",
pages = "1178",
volume = "13",
doi = "10.3390/cryst13081178"
}

Bobić, J., Ilić, N., Despotovic, Z. V., Džunuzović, A., Grigalaitis, R., Stijepovic, I., Stojanovic, B.,& Vijatović Petrović, M.. (2023). Properties and Potential Application of Lead-Free (BaZr0.2Ti0.8O3) and Lead-Based (PbZr0.52Ti0.48O3) Flexible Thick Films. in Crystals
MDPI, Basel, Switzerland., 13(8), 1178.
https://doi.org/10.3390/cryst13081178

Bobić J, Ilić N, Despotovic ZV, Džunuzović A, Grigalaitis R, Stijepovic I, Stojanovic B, Vijatović Petrović M. Properties and Potential Application of Lead-Free (BaZr0.2Ti0.8O3) and Lead-Based (PbZr0.52Ti0.48O3) Flexible Thick Films. in Crystals. 2023;13(8):1178.
doi:10.3390/cryst13081178 .

Bobić, Jelena, Ilić, Nikola, Despotovic, Zeljko V., Džunuzović, Adis, Grigalaitis, Robertas, Stijepovic, Ivan, Stojanovic, Biljana, Vijatović Petrović, Mirjana, "Properties and Potential Application of Lead-Free (BaZr0.2Ti0.8O3) and Lead-Based (PbZr0.52Ti0.48O3) Flexible Thick Films" in Crystals, 13, no. 8 (2023):1178,
https://doi.org/10.3390/cryst13081178 . .

TY  - CONF
AU  - Bobić, Jelena
AU  - Ilić, Nikola
AU  - Despotovic, Zeljko V.
AU  - Džunuzović, Adis
AU  - Grigalaitis, Robertas
AU  - Stijepovic, Ivan
AU  - Vijatović Petrović, Mirjana
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2447
AB  - Various alternative renewable sources such as solar, wind, thermal energy and
mechanical vibrations are available for the energy generations. For the last decades,
energy harvesters based on piezoelectricity from mechanical vibration are explored
extensively for its functionality in energy technologies [1,2]. Flexible piezoelectric
energy harvesters (FPEHs) and energy storage system were fabricated by employing
solid state synthesized lead-free BZT (BaZr0.2Ti0.8O3) and PZT (PbZr0.52Ti0.48O3)
nanopowders prepared by autocombustion method with polyvinylidene fluoride
(PVDF) in different volume percentage (xBZT/PZT-(1-x)PVDF, x=30, 40, 50).
Both flexible films with quite homogeneous distribution of piezo-active filler were
confirmed by XRD and SEM analysis. In addition, the remnant polarization (Pr) and
dielectric constant are also investigated to evaluate the breakdown strength in
flexible films. The improved dielectric loss tangent (< 0.02) and dielectric
permittivity of 120 at room temperature and frequency 1 MHz of BZT-PVDF (50-
50) in comparison with neat PVDF films is found beneficial for both energy
harvesting and storage. Calculations of storage energies obtained for the investigated
materials revealed an increasing trend with increasing amount of active phase (BZT
and PZT). The maximum storage energy of 0.11 J/cm3 and 0.13 J/cm3, and energy
efficiency (η) of 72% and 39% was obtained for BZT-PVDF (50-50) and PZTPVDF
(40-60) films, respectively. Test of the force impact showing similar output
voltage of around 4 V for both, BZT and PZT flexible films.
PB  - The Serbian Society for Ceramic Materials
C3  - 6th Conference of The Serbian Society for Ceramic Materials
T1  - LEAD BASED (PZT) AND LEAD FREE (BZT) COMPOSITES FLEXIBLE FILMS AS LOW-ENERGY PIEZOELECTRIC HARVESTERS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2447
ER  - 

@conference{
author = "Bobić, Jelena and Ilić, Nikola and Despotovic, Zeljko V. and Džunuzović, Adis and Grigalaitis, Robertas and Stijepovic, Ivan and Vijatović Petrović, Mirjana",
year = "2022",
abstract = "Various alternative renewable sources such as solar, wind, thermal energy and
mechanical vibrations are available for the energy generations. For the last decades,
energy harvesters based on piezoelectricity from mechanical vibration are explored
extensively for its functionality in energy technologies [1,2]. Flexible piezoelectric
energy harvesters (FPEHs) and energy storage system were fabricated by employing
solid state synthesized lead-free BZT (BaZr0.2Ti0.8O3) and PZT (PbZr0.52Ti0.48O3)
nanopowders prepared by autocombustion method with polyvinylidene fluoride
(PVDF) in different volume percentage (xBZT/PZT-(1-x)PVDF, x=30, 40, 50).
Both flexible films with quite homogeneous distribution of piezo-active filler were
confirmed by XRD and SEM analysis. In addition, the remnant polarization (Pr) and
dielectric constant are also investigated to evaluate the breakdown strength in
flexible films. The improved dielectric loss tangent (< 0.02) and dielectric
permittivity of 120 at room temperature and frequency 1 MHz of BZT-PVDF (50-
50) in comparison with neat PVDF films is found beneficial for both energy
harvesting and storage. Calculations of storage energies obtained for the investigated
materials revealed an increasing trend with increasing amount of active phase (BZT
and PZT). The maximum storage energy of 0.11 J/cm3 and 0.13 J/cm3, and energy
efficiency (η) of 72% and 39% was obtained for BZT-PVDF (50-50) and PZTPVDF
(40-60) films, respectively. Test of the force impact showing similar output
voltage of around 4 V for both, BZT and PZT flexible films.",
publisher = "The Serbian Society for Ceramic Materials",
journal = "6th Conference of The Serbian Society for Ceramic Materials",
title = "LEAD BASED (PZT) AND LEAD FREE (BZT) COMPOSITES FLEXIBLE FILMS AS LOW-ENERGY PIEZOELECTRIC HARVESTERS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2447"
}

Bobić, J., Ilić, N., Despotovic, Z. V., Džunuzović, A., Grigalaitis, R., Stijepovic, I.,& Vijatović Petrović, M.. (2022). LEAD BASED (PZT) AND LEAD FREE (BZT) COMPOSITES FLEXIBLE FILMS AS LOW-ENERGY PIEZOELECTRIC HARVESTERS. in 6th Conference of The Serbian Society for Ceramic Materials
The Serbian Society for Ceramic Materials..
https://hdl.handle.net/21.15107/rcub_rimsi_2447

Bobić J, Ilić N, Despotovic ZV, Džunuzović A, Grigalaitis R, Stijepovic I, Vijatović Petrović M. LEAD BASED (PZT) AND LEAD FREE (BZT) COMPOSITES FLEXIBLE FILMS AS LOW-ENERGY PIEZOELECTRIC HARVESTERS. in 6th Conference of The Serbian Society for Ceramic Materials. 2022;.
https://hdl.handle.net/21.15107/rcub_rimsi_2447 .

Bobić, Jelena, Ilić, Nikola, Despotovic, Zeljko V., Džunuzović, Adis, Grigalaitis, Robertas, Stijepovic, Ivan, Vijatović Petrović, Mirjana, "LEAD BASED (PZT) AND LEAD FREE (BZT) COMPOSITES FLEXIBLE FILMS AS LOW-ENERGY PIEZOELECTRIC HARVESTERS" in 6th Conference of The Serbian Society for Ceramic Materials (2022),
https://hdl.handle.net/21.15107/rcub_rimsi_2447 .