Polarization controlled photovoltaic and self-powered photodetector characteristics in Pb-free ferroelectric thin film
Atal Bihari Swain,Martando Rath,Pranab Parimal Biswas,M. S. Ramachandra Rao,Pattukkannu Murugavel +4 more
TLDR
In this article, a switchable and large PV effect is demonstrated in a Pb-free ferroelectric 0.5Ba(Zr0.7Ca0.2Ti0.3)TiO3 (BZT-BCT) thin film fabricated by a pulsed laser deposition technique.Abstract:
Ferroelectrics are considered next generation photovoltaic (PV) materials. In this work, a switchable and large PV effect is demonstrated in a Pb-free ferroelectric 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 (BZT-BCT) thin film fabricated by a pulsed laser deposition technique. The material shows a remarkable PV output of 0.81 V due to its morphotropic phase boundary composition. The observed PV effect is analyzed on the basis of the interfacial Schottky barrier and bulk depolarization field. The poling dependent PV studies revealed that although the Schottky and depolarization field contribute to the PV effect, the latter dominates the PV response beyond the coercive field. Additionally, the importance of this compound in the field of a self-biased photodetector is elucidated in terms of calculated photodetector parameters such as responsivity and detectivity. The explored results will bring significant advancement in the field of ferroelectric PV, UV solid state detector applications and also give an additional dimension to the multifunctional ability of the BZT-BCT system.read more
Citations
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Depolarization electric field and poling voltage-modulated Pb,La(Zr,Ti)O3-based self-powered ultraviolet photodetectors
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Polarization-enhanced photovoltaic response and mechanisms in Ni-doped (Bi0.93Gd0.07)FeO3 ceramics for self-powered photodetector
TL;DR: In this paper, the authors highlight polarizationenhanced photovoltaic (PV) effects and mechanisms in B-site Ni-doped (Bi0.93Gd0.07) ceramics with indium tin oxide (top electrode) and Au (bottom electrode) thin films.
Journal ArticleDOI
Enhanced photocurrent in ferroelectric Bi0.5Na0.5TiO3 materials via ferro-pyro-phototronic effect
TL;DR: In this paper , a significant enhancement in the photocurrent of a Bi0.5Na0.3-based photoelectric device by ferro-pyro-phototronic effect was reported, where the peak and platform photocurrents induced by simultaneous use of both light and heating can be increased by 131% and 57%, respectively.
Journal ArticleDOI
Enhancing Photovoltaic and Photosensing Performances in Bismuth Ferrite via Polar Order Engineering
Chi-Shun Tu,Chi-Shun Tu,Yi-Shin Jou,Pin-Yi Chen,Cheng-Sao Chen,Yu-Chen Hsu,Kuei-Chih Feng,R. R. Chien,V. Hugo Schmidt,Shu-Chih Haw +9 more
TL;DR: In this article, the authors demonstrated that bismuth ferrite is one of the promising lead-free perovskite materials used in solar energy harvesting devices and photodetectors.
Journal ArticleDOI
High-performance self-powered visible-blind ultraviolet photodetection achieved by ferroelectric PbZr0.52Ti0.48O3 thin films
TL;DR: In this paper , a self-powered visible-blind ultraviolet (UV) photodetector based on ferroelectric PbZr0.52Ti0.48O3 (PZT) thin films has been reported.
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