High performance metal sulfide counter electrodes for organic sulfide redox couple in dye-sensitized solar cells
High performance metal sulfide counter electrodes for organic sulfide redox couple in dye-sensitized solar cells
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DOI：
10.1016/j.mtener.2018.02.004
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发表时间：
2018-06-01
影响因子：
9.3
通讯作者：
Wu, Mingxing
中科院分区：
文献类型：
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作者：
Han, Qianji;Hu, Zaixin;Wu, Mingxing
为了降低染料敏化太阳能电池（DSSC）的制造成本并提高其功率转换效率（PCE），合成了一类含有PbS、Ag2S、CuS、CdS和ZnS的金属硫化物纳米颗粒，以取代昂贵且不合格的Pt对电极，用于有机硫化物氧化还原对的再生。循环伏安法、电化学阻抗谱和Tafel极化曲线测试结果表明，PbS、CuS和Ag2S对有机电对具有良好的催化活性。使用硫化物对电极的相应器件的PCE值达到6.49%（PbS）、6.11%（Ag2S）和5.29%（CuS），远高于使用Pt对电极的DSSC（3.86%）。(C)2018爱思唯尔有限公司版权所有
In order to reduce the fabrication cost and improve the power conversion efficiency (PCE) of the dye-sensitized solar cells (DSSCs), a class of metal sulfides nanoparticles containing PbS, Ag2S, CuS, CdS, and ZnS are synthesized to replace the expensive and unqualified Pt counter electrode towards the regeneration of the organic sulfide redox couple. The cyclic voltammetry, electrochemical impedance spectroscopy, and Tafel polarization curve results prove that the prepared PbS, CuS, and Ag2S show high catalytic activities toward the organic redox couple. The PCE values of corresponding devices using the sulfide counter electrodes reach 6.49% (PbS), 6.11% (Ag2S), and 5.29% (CuS), much higher than the DSSCs using Pt counter electrode (3.86%). (C) 2018 Elsevier Ltd. All rights reserved.