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中国科学院大学学报 ›› 2013, Vol. 30 ›› Issue (1): 6-10.DOI: 10.7523/j.issn.1002-1175.2013.01.002

• 化学与生命科学 • 上一篇    下一篇

β-硫化汞超球的制备及其光电性质

王秀欣1, 吴磊1, 曹晶1, 刘雅玲2, 宋锐1   

  1. 1. 中国科学院研究生院化学与化工学院, 北京 100049;
    2. 国家纳米科学中心, 北京 100190
  • 收稿日期:2012-01-04 修回日期:2012-03-01 发布日期:2013-01-15
  • 通讯作者: 宋锐
  • 基金资助:

    国家自然科学基金(21072221,21172252)和中国科学院研究生院院长基金(095101CY00)资助

Facile synthesis of monodispersed β-HgS nano-superspheres and their optical properties

WANG Xiu-Xin1, WU Lei1, CAO Jing1, LIU Ya-Ling2, SONG Rui1   

  1. 1. Department of Chemistry and Chemical Engineering, Graduate University, Chinese Academy of Sciences, Beijing 100049, China;
    2. National Center for Nanoscience and Nanotechnology, Beijing 100190, China
  • Received:2012-01-04 Revised:2012-03-01 Published:2013-01-15

摘要:

利用水热法制备尺寸均一、单分散性良好的β-硫化汞超球.通过扫描电子显微镜(SEM)和X-射线衍射(XRD)等手段系统研究汞离子(Hg2+)和半胱氨酸配比、反应温度等对产物形貌的影响.同时,β-硫化汞超球在较宽波长范围内(200~900nm)均产生很强的吸收.在室温标准太阳光下对材料进行的光电测试结果表明,短路电流密度0.12mA·cm-2,开路电压0.40V,填充因子4.4%,转化效率0.21%.这预示该类超球在新型太阳能电池领域中具有潜在的应用价值.

关键词: β-硫化汞, 自组装, 纳米超球, 太阳能电池

Abstract:

β-HgS superspheres with uniform sizes and micro-sub-planes were synthesized by hydrothermal method. The β-HgS superspheres have very strong absorption in a wide wavelength range from ultraviolet to visible region. In addition, they show good photovoltaic behavior with short circuit current density of ~0.12 mA·cm-2, open circuit voltage of ~0.4 V, fill factor of ~4.4%, and energy conversion efficiency of ~0.21%.

Key words: β-HgS, self-assembly, nano-superspheres, solar cell

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