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量子点与TiO2电极参数对光阳极电子寿命及性能影响

权琳琳 李卫平 耿慧芳 刘慧丛 朱立群

权琳琳, 李卫平, 耿慧芳, 等 . 量子点与TiO2电极参数对光阳极电子寿命及性能影响[J]. 北京航空航天大学学报, 2015, 41(7): 1322-1329. doi: 10.13700/j.bh.1001-5965.2014.0541
引用本文: 权琳琳, 李卫平, 耿慧芳, 等 . 量子点与TiO2电极参数对光阳极电子寿命及性能影响[J]. 北京航空航天大学学报, 2015, 41(7): 1322-1329. doi: 10.13700/j.bh.1001-5965.2014.0541
QUAN Linlin, LI Weiping, GENG Huifang, et al. Influence of quantum dots and TiO2 photoanode parameters on electron lifetimes and performance of photonode[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(7): 1322-1329. doi: 10.13700/j.bh.1001-5965.2014.0541(in Chinese)
Citation: QUAN Linlin, LI Weiping, GENG Huifang, et al. Influence of quantum dots and TiO2 photoanode parameters on electron lifetimes and performance of photonode[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(7): 1322-1329. doi: 10.13700/j.bh.1001-5965.2014.0541(in Chinese)

量子点与TiO2电极参数对光阳极电子寿命及性能影响

doi: 10.13700/j.bh.1001-5965.2014.0541
基金项目: 中央高校基本科研业务费专项资金; 国家自然科学基金(51371020)
详细信息
    作者简介:

    权琳琳(1987—),男,河南洛阳人,硕士研究生,quanlinlin163@163.com

    通讯作者:

    刘慧丛(1974—),女,河北无极人,副教授,liuhc@buaa.edu.cn,主要研究方向为功能材料的腐蚀与防护.

  • 中图分类号: TM914.4

Influence of quantum dots and TiO2 photoanode parameters on electron lifetimes and performance of photonode

  • 摘要: 通过对P25TiO2光阳极薄膜厚度、敏化的量子点种类及量子点敏化方法研究,探讨了使用连续离子层吸附反应法的敏化方法(SILAR)时,P25TiO2薄膜厚度与光阳极电子寿命的关系,以及量子点种类、共敏化工艺对光阳极光电性能的影响.采用电化学阻抗(EIS)、开路电压衰减(OCVD)及紫外-可见吸收方法,对影响光阳极光电性能的TiO2薄膜厚度、量子点种类及共敏化工艺因素进行测试分析.实验结果表明:当光阳极薄膜厚度为12μm时,电子复合几率最小,光阳极的电子寿命相对最长;采用连续离子层吸附反应法(SILAR)对多种量子点共敏化的光阳极(TiO2/CdS/CdSe/ZnS)与单一量子点敏化的光阳极(TiO2/CdS)相比,短路电流提高了34%,光转换效率提高了42%;合适的共敏化工艺也有助于提高光阳极的电子寿命、光谱吸收范围和吸收强度.

     

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出版历程
  • 收稿日期:  2014-09-04
  • 修回日期:  2014-09-26
  • 网络出版日期:  2015-07-20

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