Photovoltaic Properties of BiFeO3/BaTiO3 Bilayered Thin Film

被引：4
作者：
Sharma, Savita [1 ,3 ]
Tomar, Monika [2 ]
Kumar, Ashok [4 ]
Puri, Nitin K. [3 ]
Gupta, Vinay [1 ]
机构：
[1] Univ Delhi, Dept Phys & Astrophys, Delhi 110007, India
[2] Univ Delhi, Dept Phys, Delhi 110007, India
[3] Delhi Technol Univ, Dept Appl Phys, Delhi 110042, India
[4] CSIR, Natl Phys Lab, New Delhi 110012, India
来源：
ADVANCED SCIENCE LETTERS | 2014年 / 20卷 / 7-9期
关键词：
Ferroelectric; Photovoltaic; Sol-Gel;
D O I：
10.1166/asl.2014.5573
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In the present work, the ferroelectric photovoltaic properties of bismuth ferrite (BFO)/barium titanate (BTO) bilayered thin film have been investigated. BFO/BTO bilayered tin film has been deposited on Pt/Ti/SiO2/Si substrate using sol gel spin-coating technique. The structural and optical properties of the prepared bilayer thin film have studied by using X-ray diffraction (XRD) and UV-Visible Spectroscopy (UV-Vis) respectively. PE hysteresis loop measurements were carried out in order to confirm the ferroelectric nature of BFO/BTO bilayer thin film. The ferroelectric photovoltaic properties of the BFO/BTO bilayered thin film were studied in metal-insulator-metal (MIM) configuration i.e., Au/BFO/BTO/Pt. BFO/BTO bilayer thin film was found to give one order change in the value of current when illuminated with 405 nm wavelength light (intensity = 60 mW). The short circuit photocurrent density and open circuit voltage were observed to be 2.76 mu A/cm(2) and 0.215 V respectively. The obtained results are encouraging and makes the prepared bilayer structure suitable for energy harvesting applications.
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页码：1316 / 1320
页数：5
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