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Effect of metal doping on highly efficient photovoltaics and switchable photovoltage in bismuth ferrite nanotubes |
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| Authors: | Gobinda Gopal Khan Rajasree Das Nillohit Mukherjee Kalyan Mandal |
| Affiliation: | 1. Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake City, Kolkata 700098, India;2. Centre of Excellence for Green Energy and Sensor Systems, Bengal Engineering and Science University, Shibpur, Botanic Garden, Howrah 711103, India |
| Abstract: | We report enhanced anomalous photovoltaic effects and switchable photovoltage generation in pure and Pr–Cr co‐doped BiFeO3 (BFO) nanotubes (NTs). Influence of metal doping on short circuit current, open circuit voltage, power conversion efficiency and fill factor are investigated. The power conversion efficiency of pure BFO NTs (～0.207%) is found to be enhanced by several orders of magnitude in comparison with the reported bulk effect. Pr‐doped NTs provide highest values of power conversion efficiency (～0.5%).  |
| Keywords: | BFO nanotubes semiconductors ferroelectrics photovoltaics switchable photovoltage |