物理化学学报 >> 2013, Vol. 29 >> Issue (03): 539-545.doi: 10.3866/PKU.WHXB201212254

电化学和新能源 上一篇    下一篇

pH值对金莲花染料敏化太阳能电池性能的影响

杨桂军1, 王棽睿2, 张永昌3, 王刚1, 陈慧媛1, 南辉1, 申何萍3, 林红1,3   

  1. 1 青海大学化工学院, 青海 西宁 810016;
    2 北京理工大学材料学院, 北京 100081;
    3 清华大学 材料科学与工程系新型陶瓷与精细工艺国家重点实验室, 北京 100084
  • 收稿日期:2012-10-09 修回日期:2012-12-25 发布日期:2013-02-25
  • 通讯作者: 王刚,林红 E-mail:wanggang5208@163.com
  • 基金资助:

    青海省昆仑学者计划; 青海省科技厅三江源项目(2010-N-S03)及青海省科技厅国际合作项目(2011-H-802)资助

Effect of pH Values on Performance of Trollius Chinensis Pigment Sensitized Solar Cells

YANG Gui-Jun1, WANG Shen-Rui2, ZHANG Yong-Chang3, WANG Gang1, CHEN Hui-Yuan1, NAN Hui1, LIN Hong3   

  1. 1 Collage of Chemical Engineering, Qinghai University, Xining, Qinghai 810016, P. R. China;
    2 Collage of Material, Beijing University of Technology, Beijing 100081, P. R. China;
    3 State Key Laboratory of New Ceramics & Fine Processing, Department of Material Science and Engineering, Tsinghua University, Beijing 100084,P. R. China
  • Received:2012-10-09 Revised:2012-12-25 Published:2013-02-25
  • Supported by:

    The project was supported by the Kunlun Scholar Program of Qinghai, China, Sanjiangyuan Scientific Program of Qinghai Science & Technology Department, China (2010-N-S03), and International Cooperation Program of Qinghai Science & Technology Department, China (2011-H-802).

摘要:

首先从高原金莲花中提取天然染料, 通过紫外-可见(UV-Vis)吸收光谱和傅里叶变换红外(FTIR)吸收光谱确定其主要成分为花色苷. 调节色素溶液的pH值, 组装染料敏化太阳能电池(DSCs)并进行光电性能测试.研究发现, 随着pH值的升高, 电池的开路电压逐渐升高, 但是短路电流密度却先升高后降低. 分析认为这是由于在不同pH值下, 花色苷的结构会发生转换造成的. 在pH=5时, 该天然染料敏化太阳能电池的光电转换效率最高, 达到0.292%.

关键词: 染料敏化太阳能电池, 天然染料, pH值, 金莲花, 光伏性能

Abstract:

Trollius chinensis pigment was extracted, and ultraviolet-visible (UV-Vis) absorption and Fourier transform infrared (FTIR) spectroscopy confirmed that anthocyanin compounds were the main components. Dye sensitized solar cells (DSCs) were sensitized from the natural pigments dissolved in different pH solutions. Open-circuit voltage increased with increasing pH,while short-circuit current density first increased and then decreased, attributed to an anthocyanin structural change with pH value. The highest observed power conversion efficiency was 0.292% at pH=5.

Key words: Dye sensitized solar cell, Natural pigment, pH value, Trollius chinensis, Photovoltaic perfomance

MSC2000: 

  • O644