Polarization-enhanced bulk photovoltaic effect of BiFeO3 epitaxial film under standard solar illumination |
| |
Institution: | School of Physics and Physical Engineering, Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Qufu Normal University, Qufu, 273165, China |
| |
Abstract: | In this Letter, we report the polarization-enhanced bulk photovoltaic effect (BPV) in pristine BiFeO3 (BFO) epitaxial film under standard 1 sun AM 1.5 G illumination. High-quality epitaxial BFO films are grown on (001)-oriented niobium doped-SrTiO3 substrates by pulsed laser deposition. The best BFO film based photovoltaic device achieves a power conversion efficiency of 0.0062% under standard illumination. Besides, it is found that the number of bipolar pulses plays a key role in improving the short-circuit current density and open-circuit voltage. These results are beneficial for further understanding of physical origin of the photovoltaic properties in ferroelectric oxides. |
| |
Keywords: | Bulk photovoltaic effect Polarization Current hysteresis loop Bipolar pulses |
本文献已被 ScienceDirect 等数据库收录! |
|