Photovoltaic properties of ferroelectric solar cells based on poly- crystalline BiFeO3 films sputtered on indium tin oxide substrates

To study the ferroelectric photovoltaic effect based on polycrystalline films, preparation of high-quality polycrystalline films with low leakage and high remnant polarization is essential. Polycrystalline BiFeO3 （BFO） thin films with extremely large remnant polarization （2Pr = 180 ~aC/cm2） were suc...

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Published in:中国科学：物理学、力学、天文学英文版 2015 (3), p.76-81
Main Author: DING JianNing CHEN MengJiao QIU JianHua YUAN NingYi
Format: Article
Language:English
Subjects:
BiFeO3薄膜
光电转换特性
基板
多晶薄膜
太阳能电池
射频磁控溅射法
铁电
铟锡氧化物
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Summary:To study the ferroelectric photovoltaic effect based on polycrystalline films, preparation of high-quality polycrystalline films with low leakage and high remnant polarization is essential. Polycrystalline BiFeO3 （BFO） thin films with extremely large remnant polarization （2Pr = 180 ~aC/cm2） were successfully deposited on glass substrates coated with indium tin oxide using a modified radio frequency magnetron sputtering method. Symmetric and asymmetric cells were constructed to investigate the ferroelectric photovoltaic effect in order to understand the relationship between polarization and photovoltaic response. All examined cells showed polarization-induced photovoltaic effect. Our findings also showed that the ferroelectric photovoltaic effect is highly dependent on the material used for the top electrode and the thickness of the polycrystalline film.
ISSN:1674-7348
1869-1927