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CuInS2/石墨烯混合物的合成及其在太阳能电池中的应用
引用本文:华健,林运祥,周雷,杨晓,左学勤,李广.CuInS2/石墨烯混合物的合成及其在太阳能电池中的应用[J].安徽大学学报(自然科学版),2015(1):83-91.
作者姓名:华健  林运祥  周雷  杨晓  左学勤  李广
作者单位:1. 安徽大学 物理与材料科学学院,安徽 合肥,230601;2. 安徽大学 物理与材料科学学院,安徽 合肥 230601; 安徽省信息材料与器件重点实验室,安徽 合肥 230601
摘    要:在不同的溶剂中通过温和的溶剂热法,成功地合成 CuInS2纳米晶体。这些合成好的 CuInS2粉末被 X光衍射表征后,又作为对电极被组装成染料敏化太阳能电池。通过检测可以发现乙二醇是合成 CuInS2过程中最佳的溶液。这主要表现在用乙二醇合成的 CuInS2作为电池对电极时的转化率可以达到5·49%,这个值要比用其他溶液合成的 CuInS2转化率高。然后,将在乙二醇溶剂中合成的 CuInS2粉末与石墨烯的氧化物混合形成 CuInS2纳米晶体/石墨烯纳米复合材料,这种材料可以提高 CuInS2在染料敏化太阳能电池方面的性能。通过透射电子显微镜法,可以证明 CuInS2生长在石墨烯纳米网中。与传统的铂对电极电池(6·90%)相比,这种纳米复合材料具有相对较好的光电转化率(6·28%)。

关 键 词:CuInS2  对电极  染料敏化太阳能电池(DSSC)  石墨烯纳米混合物  转化率

Synthesis of CuInS2 nanocrystal/graphene nano-network counter electrodes for enhanced efficiency dye-sensitized solar cells
HUA Jian,LIN Yun-xiang,ZHOU Lei,YANG Xiao,ZUO Xue-qin,LI Guang.Synthesis of CuInS2 nanocrystal/graphene nano-network counter electrodes for enhanced efficiency dye-sensitized solar cells[J].Journal of Anhui University(Natural Sciences),2015(1):83-91.
Authors:HUA Jian  LIN Yun-xiang  ZHOU Lei  YANG Xiao  ZUO Xue-qin  LI Guang
Abstract:CuInS2 nanocrystals have been successfully synthesized through a facile solvothermal method in different solvent systems . The as‐prepared CuInS2 powders were characterized by X‐ray diffraction and were used as counter electrode to fabricate dye‐sensitized solar cells . It was found that ethylene glycol was the optimal solvent for synthesizing CuInS2 because the power conversion efficiency of the cell using this CuInS2 powder as counter electrode could reach 5·49% ,which was superior to others .The CuInS2 powder synthesized in ethylene glycol was mixed with reduced graphene oxide to form CuInS2 nanocrystal/reduced graphene oxide nanocomposites for enhance its performance in dye‐sensitized solar cells . Transmission electron microscopy demonstrated that CuInS2 nanocrystals were grown along graphene networks .It was found that this nanocomposites achieved higher power conversion efficiency (6·28% ) , which was comparable to the conventional device using platinum as counter electrode (6·90% ) .
Keywords:CuInS2  counter electrode  dye-sensitized solar cells (DSSC)  reduced graphene oxide nanocomposites  power conversion efficiency
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