Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.4766279
Title: Tunable photovoltaic effect and solar cell performance of self-doped perovskite SrTiO3
Authors: Jin, K.X
Li, Y.F
Wang, Z.L
Peng, H.Y
Lin, W.N 
Kyaw, A.K.K
Jin, Y.L
Jin, K.J
Sun, X.W
Soci, C
Wu, T
Keywords: Complex oxides
High mobility
Oxide electronics
Photo-voltage
Photovoltaic
Power conversion efficiencies
Room temperature
Schottky junctions
Self-doped
Self-powered
Solar cell performance
SrTiO
Thin surface layer
UV illuminations
Conversion efficiency
Perovskite
Photovoltaic effects
Semiconductor junctions
Solar cells
Strontium titanates
Single crystals
Issue Date: 2012
Citation: Jin, K.X, Li, Y.F, Wang, Z.L, Peng, H.Y, Lin, W.N, Kyaw, A.K.K, Jin, Y.L, Jin, K.J, Sun, X.W, Soci, C, Wu, T (2012). Tunable photovoltaic effect and solar cell performance of self-doped perovskite SrTiO3. AIP Advances 2 (4) : 42131. ScholarBank@NUS Repository. https://doi.org/10.1063/1.4766279
Rights: Attribution 4.0 International
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. © 2012 Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License.
Source Title: AIP Advances
URI: https://scholarbank.nus.edu.sg/handle/10635/183223
ISSN: 21583226
DOI: 10.1063/1.4766279
Rights: Attribution 4.0 International
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