Giant bulk photovoltaic effect in solar cell architectures with ultra-wide bandgap Ga2O3 transparent conducting electrodes

被引：26
作者：
Perez-Tomas, A. [1 ,2 ]
Chikoidze, E. [3 ]
Dumont, Y. [3 ]
Jennings, M. R. [4 ,5 ]
Russell, S. O. [4 ]
Vales-Castro, P. [1 ,2 ]
Catalan, G. [1 ,2 ,6 ]
Lira-Cantu, M. [1 ,2 ]
Ton-That, C. [7 ]
Teherani, F. H. [8 ]
Sandana, V. E. [8 ]
Bove, P. [8 ]
Rogers, D. J. [8 ]
机构：
[1] CSIC, Catalan Inst Nanosci & Nanotechnol ICN2, Campus UAB, Barcelona 08193, Spain
[2] BIST, Campus UAB, Barcelona 08193, Spain
[3] Univ Paris Saclay, Univ Versailles St Quentin En Y, Grp Etud Matiere Condensee GEMaC, CNRS, 45 Av Etats Unis, F-78035 Versailles, France
[4] Univ Warwick, Fac Sci, Coventry CV4 7AL, W Midlands, England
[5] Swansea Univ, Bay Campus,Fabian Way, Swansea SA1 8EN, SA, Wales
[6] ICREA, Barcelona 08010, Catalonia, Spain
[7] Univ Technol Sydney, Sch Math & Phys Sci, POB 123, Sydney, NSW 2007, Australia
[8] Nanovat, 8 Route Chevreuse, F-78117 Chateaufort, France
来源：
MATERIALS TODAY ENERGY | 2019年 / 14卷
关键词：
Ultra-wide bandgap semiconductors; Transparent conducting oxide; Gallium oxide; Ga2O3; Ferroelectric photovoltaics; Pb(Zr; Ti)O-3; Bulk photovoltaic effect; Solar cell architecture; GALLIUM OXIDE; ATOMIC LAYER; HOLE TRAPS; FILM; POLARIZATION; SURFACE; POWER;
D O I：
10.1016/j.mtener.2019.100350
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The use of ultra-wide bandgap transparent conducting beta gallium oxide (beta-Ga2O3) thin films as electrodes in ferroelectric solar cells is reported. In a new material structure for energy applications, we report a solar cell structure (a light absorber sandwiched in between two electrodes - one of them transparent) which is not constrained by the Shockley-Queisser limit for open-circuit voltage (V-oc) under typical indoor light. The solar blindness of the electrode enables a record-breaking bulk photovoltaic effect (BPE) with white light illumination (general use indoor light). This work opens up the perspective of ferroelectric photovoltaics which are not subject to the Shockley-Queisser limit by bringing into scene solar-blind conducting oxides. (C) 2019 Elsevier Ltd. All rights reserved.
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页数：9
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