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|Title:||Tunable photovoltaic effect and solar cell performance of self-doped perovskite SrTiO3||Authors:||Jin, K. X.
Li, Y. F.
Wang, Z. L.
Lin, W. N.
Jin, Y. L.
Jin, K. J.
Kyaw, Aung Ko Ko
|Issue Date:||2012||Source:||Jin, K. X., Li, Y. F., Wang, Z. L., Peng, H. Y., Lin, W. N., Kyaw, A. K. K., et al. (2012). Tunable photovoltaic effect and solar cell performance of self-doped perovskite SrTiO3. AIP advances, 2(4), 042131-.||Series/Report no.:||AIP advances||Abstract:||We report on the tunable photovoltaic effect of self-doped single-crystal SrTiO3 (STO), a prototypical perovskite-structured complex oxide, and evaluate its performance in Schottky junction solar cells. The photovaltaic characteristics of vacuum-reduced STO single crystals are dictated by a thin surface layer with electrons donated by oxygen vacancies. Under UV illumination, a photovoltage of 1.1 V is observed in the as-received STO single crystal, while the sample reduced at 750 °C presents the highest incident photon to carrier conversion efficiency. Furthermore, in the STO/Pt Schottky junction, a power conversion efficiency of 0.88% was achieved under standard AM 1.5 illumination at room temperature. This work establishes STO as a high-mobility photovoltaic semiconductor with potential of integration in self-powered oxide electronics.||URI:||https://hdl.handle.net/10356/96100
|DOI:||10.1063/1.4766279||Rights:||© 2012 The Authors. This paper was published in AIP Advances and is made available as an electronic reprint (preprint) with permission of the authors. The paper can be found at the following official DOI: [http://dx.doi.org/10.1063/1.4766279]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
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