A transparent nickel selenide counter electrode for high efficient dye-sensitized solar cells
A transparent nickel selenide counter electrode for high efficient dye-sensitized solar cells
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DOI：
10.1016/j.apsusc.2016.12.229
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发表时间：
2017-04-15
影响因子：
6.7
通讯作者：
Fan, Leqing
中科院分区：
文献类型：
--
作者：
Dong, Jia;Wu, Jihuai;Fan, Leqing
采用一步水热法合成了硒化镍（Ni 0. 85 Se），并在FTO上旋涂Ni 0. 85 Se油墨制备了Ni 0. 85 Se薄膜，用于染料敏化太阳能电池（DSSC）的对电极（CE）。Ni0.85Se电极不仅在可见光范围内具有很高的透过率，而且对I-/I-3（-）具有很好的电催化活性。通过循环伏安法、交流阻抗法和Tafel极化曲线验证了Ni0.85Se薄膜的电催化性能。使用Ni0.85Se CE的DSSC表现出8.96%的功率转换效率（PCE），而由溅射Pt CE组成的DSSC仅表现出8.15%的PCE。当在Ni 0.85 Se CE下添加反射镜时，所得DSSC表现出10.76%的PCE，这比基于溅射Pt CE的DSSC（8.44%）高出27.49%。(C)2017爱思唯尔B. V.保留所有权利。
Nickel selenide (Ni0.85Se) was synthesized by a facile one-step hydrothermal reaction and Ni0.85Se film was prepared by spin-coating Ni0.85Se ink on FTO and used as counter electrode (CE) in dye-sensitized solar cells (DSSC). The Ni0.85Se CEs not only show high transmittance in visible range, but also possess remarkable electrocatalytic activity toward I-/I-3(-). The electrocatalytic ability of Ni0.85Se films was verified by cyclic voltammetry, electrochemical impedance spectroscopy and Tafel polarization curves. The DSSC using Ni0.85Se CE exhibits a power conversion efficiency (PCE) of 8.96%, while the DSSC consisting of sputtered Pt CE only exhibits a PCE of 8.15%. When adding a mirror under Ni0.85Se CE, the resultant DSSC exhibits a PCE of 10.76%, which exceeds that of a DSSC based on sputtered Pt CE (8.44%) by 27.49%. (C) 2017 Elsevier B.V. All rights reserved.