Earth-Abundant Orthorhombic BaCu2Sn(SexS1-x)4 (x ≈ 0.83) Thin Film for Solar Energy Conversion

被引：69

作者：

Ge, Jie ^{[1
]}

Yu, Yue

Yan, Yanfa ^{[1
]}

机构：

[1] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA

来源：

ACS ENERGY LETTERS | 2016年 / 1卷 / 03期

基金：

美国国家科学基金会;

关键词：

CELLS; PHOTOCATHODE; EFFICIENCY; SRCU2MS4; DEVICE; SR; BA;

D O I：

10.1021/acsenergylett.6b00324

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：

Exploiting renewable solar energy in terms of solar driven water splitting and photovoltaic devices provides clean and efficient paths to overcome diminishing fossil fuel resources and the greenhouse effect. Here, a state-of-the-art earth-abundant BaCu2Sn-(Se0.83S0.17)(4) (BCTSSe) thin film has been presented as a promising top-cell absorber in tandem photoelectrochemical water splitting and photovoltaic conversion devices. Our BCTSSe thin film exhibits a direct bandgap of 1.85 eV with strong optical absorption coefficients (a > 10(4) cm(-1)). Without extensive interface and electrode optimization, our best BCTS photoelectrochemical cell showed a photocurrent of 5 mA cm(-2) at 0 V vs reversible hydrogen electrode. Moreover, our best-performing BCTSSe prototype photovoltaic cell with a configuration of fluorine-doped SnO2 (FTO, back contact)/BCTSSe/CdS/ZnO/alurninum doped ZnO (AZO, front contact) has achieved an efficiency of 1.57%.

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收藏

页码：583 / 588

页数：6

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