Spray-coated copper antimony sulfide (CuSbS2) thin film: A novel counter electrode for quantum dot-sensitized solar cells
The catalytic activity and charge transport characteristics of counter electrodes exert a significant impact on the photovoltaic performance of quantum dot-sensitized solar cells (QDSCs). Layered metal chalcogenides have received particular interest owning to their novel electronic properties. In th...
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Published in | Materials science in semiconductor processing Vol. 124; p. 105613 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
15.03.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The catalytic activity and charge transport characteristics of counter electrodes exert a significant impact on the photovoltaic performance of quantum dot-sensitized solar cells (QDSCs). Layered metal chalcogenides have received particular interest owning to their novel electronic properties. In this work, we report for the first time the use of layer-structured copper antimony sulfide (CuSbS2) for serving as the counter electrode materials for QDSCs. The CuSbS2 thin films were fabricated on conducting substrates through spray pyrolysis followed by a sulfuration process. The careful crystal phase and morphology characterizations reveal that as-obtained CuSbS2 thin films display long-range uniformity with flat film surfaces. A CuSbS2 counter electrode-based CdS/CdSe QDSC delivers a considerable power conversion efficiency of 2.15%. In contrast to the conventional noble Pt electrodes, spray-coated CuSbS2 counter electrodes exhibit higher catalytic activity for catalyzing polysulfide electrolyte regeneration. This work offers a promising counter electrode with superior catalytic capability for constructing highly efficient QDSCs. |
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ISSN: | 1369-8001 1873-4081 |
DOI: | 10.1016/j.mssp.2020.105613 |