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The charge-transfer property and the performance of dye-sensitized solar cells of nitrogen doped zinc oxide

机译：氮掺杂氧化锌的电荷转移性质和染料敏化太阳能电池的性能

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摘要

In this study two methods, namely the solution and annealing methods, were used to prepare nitrogen-doped ZnO. The X-ray photoelectron spectroscopy (XPS) was performed to identify the composition and chemical states of N-doped ZnO. The N doping by the solution method was found to effectively decrease the acceptor effects. Surface photovoltage measurements (SPS) revealed a redshift of the threshold wavelength for the N-doped ZnO. And the recombination of photoinduced electron-hole pairs in this semiconductor material was obviously suppressed. The N-doped ZnO (solution method) exhibits the best performances among all the materials, even superior to N-doped ZnO (annealing method). Its J_(sc) and η values (9.35 mA/cm~2 and 2.64%) have enhanced by several times compared with un-doped ZnO (J_(sc). 2.85 mA/cm~2;η 0.67%). The overall conversion efficiency of ZnO-based dye-sensitized solar cells was successfully improved by the N doping.
机译：在这项研究中，使用固溶和退火两种方法来制备氮掺杂的ZnO。进行了X射线光电子能谱（XPS）以确定N掺杂的ZnO的组成和化学状态。发现通过溶液法的N掺杂有效地降低了受体效应。表面光电压测量（SPS）显示了N掺杂ZnO的阈值波长发生红移。并且，这种半导体材料中的光致电子-空穴对的复合被明显抑制。 N掺杂的ZnO（溶液法）在所有材料中表现出最好的性能，甚至优于N掺杂的ZnO（退火法）。其J_（sc）和η值（9.35 mA / cm〜2和2.64％）比未掺杂的ZnO（J_（sc）。2.85 mA / cm〜2;η0.67％）提高了数倍。 N掺杂成功提高了ZnO基染料敏化太阳能电池的整体转换效率。

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  • 来源
    《Materials Science and Engineering》 |2012年第12期|p.956-961|共6页
  • 作者

    Lingyun Zhang; Yulin Yang; Ruiqing Fan; Haiyan Chen; Ruokun Jia; Yonghui Wang; Liqun Ma; Yazhen Wang;

  • 作者单位

    Department of Chemistry, Harbin Institute of Technology, Harbin 150001, PR China,School of Chemical Engineering, Northeast Dianii University, Jilin 132012, PR China;

    Department of Chemistry, Harbin Institute of Technology, Harbin 150001, PR China;

    Department of Chemistry, Harbin Institute of Technology, Harbin 150001, PR China;

    Department of Chemistry, Harbin Institute of Technology, Harbin 150001, PR China;

    School of Chemical Engineering, Northeast Dianii University, Jilin 132012, PR China;

    Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, PR China;

    School of Material Science of Engineering, Qiqihar University, Qiqihar 161006, PR China;

    School of Material Science of Engineering, Qiqihar University, Qiqihar 161006, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    nitrogen; zinc oxide; charge transfer; photovoltaic; solar cells;

    机译：氮;氧化锌电荷转移;光伏太阳能电池;

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