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Transport and transient photovoltaic properties of La0.4Ca0.6MnO3/Nb:SrTiO3 heterojunction at high temperature |
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| Authors: | Hao Ni Shilian Da Kun Zhao Yu Chau Kong Hong Kuen Wong Songqing Zhao |
| Affiliation: | 1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, People’s Republic of China 2. Laboratory of Optical Sensing and Detecting Technology, China University of Petroleum, Beijing, 102249, People’s Republic of China 3. International Center for Materials Physics, Chinese Academy of Sciences, Shenyang, 110016, People’s Republic of China 4. Department of Physics, The Chinese University of Hong Kong, Hong Kong, People’s Republic of China |
| Abstract: | We have investigated the electronic transport and transient photovoltaic properties on the La0.4Ca0.6MnO3/Nb(0.05 wt%):SrTiO3 heterojunction at high temperatures up to 723 K. The temperature-dependent reversal of the rectifying polarity and the decrease of the photosensitivity and response time were observed in the junction with increasing temperature from 293 to 723 K. The mechanism of the energy-band structure evolvement with increasing temperature is presented to understand the experimental results. |
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