大面积全柔性染料敏化太阳能电池光电性能优化

引用本文: 林逍, 武明星, 安江, 苗青青, 覃达, 马廷丽. 大面积全柔性染料敏化太阳能电池光电性能优化[J]. 物理化学学报, 2011, 27(11): 2577-2582. doi: 10.3866/PKU.WHXB20111112 shu

Citation: LIN Xiao, WU Ming-Xing, AN Jiang, MIAO Qing-Qing, QIN Da, MA Ting-Li. Optimization of the Photoelectric Performance of Large-Scale All-Flexible Dye-Sensitized Solar Cells[J]. Acta Physico-Chimica Sinica, 2011, 27(11): 2577-2582. doi: 10.3866/PKU.WHXB20111112 shu

大面积全柔性染料敏化太阳能电池光电性能优化

基金项目:
国家自然科学基金(50773008) (50773008)

国家高技术研究发展计划(863) (2009AA03Z220)资助项目 (863) (2009AA03Z220)

摘要: 设计并制作了大面积高效全柔性染料敏化太阳能电池(DSCs). 通过引入光散射层或施加机械压力,DSCs 的光电转化效率有了大幅度提高. 实验室小面积(0.4 cm×0.4 cm)柔性DSCs 的光电转化效率达到5.50%. 大面积(2 cm×3 cm, 活性面积为2.7 cm²) DSCs的光电转化效率从未进行处理的1.52%上升到1.81%和2.50%, 分别提高了20.0%和66.7%. 5 cm×7 cm面积的DSCs (活性面积为16.2 cm²)的光电转化效率在未做任何优化处理的条件下达到了1.60% (光强40 mW·cm^-2). 同时, 本文对提高光电转化效率的机理进行了深入研究. 电化学阻抗测试结果表明, 加压法能明显减小电池的内部串联电阻(R_s)及TiO₂/染料/电解液界面间的传荷电阻(R_ct). 扫描电镜结果也显示加压后TiO₂粒子之间粘结更加紧密, 更利于电子在TiO₂薄膜中的传输及染料的吸附. 另外, 900 h 的长期稳定性实验结果表明, 制作的柔性DSCs的各项光电性能参数均无明显下降. 该实验结果为柔性染料敏化太阳能电池的基础研究和大面积产业化技术研究奠定了基础.

关键词:

English

Optimization of the Photoelectric Performance of Large-Scale All-Flexible Dye-Sensitized Solar Cells

1.
State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. China
Received Date: 04 July 2011
Available Online: 27 October 2011
Fund Project:
国家自然科学基金(50773008)

国家高技术研究发展计划(863) (2009AA03Z220)资助项目

Abstract: Highly efficient large scale flexible dye-sensitized solar cells (DSCs) were successfully designed and fabricated. By the introduction of a light scattering layer or pressure, the DSC efficiency was greatly improved. The flexible DSCs with a small surface area (0.4 cm × 0.4 cm) gave a high energy conversion efficiency of 5.50%. The energy conversion efficiencies of large area DSCs (2 cm×3 cm, active area of 2.7 cm²) improved from 1.52% to 1.81% and 2.50%, which is an increase of 20.0% and 66.7% compared with the DSCs prepared without any treatment. The 5 cm×7 cm DSCs (active area of 16.2 cm²) without any optimization showed an energy conversion efficiency of 1.60% under a sunlight intensity of 40 mW·cm^-2. The mechanism for the improvement in efficiency was also studied. The results of electrochemical impedance spectroscopy (EIS) demonstrated that the pressure method can significantly reduce the series resistance (R_s) and the charge transfer resistance (R_ct) in the TiO₂/dye/electrolyte interface. Scanning electron microscopy (SEM) showed that the TiO₂ particles were far more closely connected after pressing, which was helpful for electron transport in the TiO₂ network as well as for dye adsorption. In addition, the photovoltaic parameters of these flexible DSCs were found to be stable after the 900 h stability tests. The experimental results obtained for these flexible DSCs can be used as a foundation for further basic research and for industrialization technical research.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

大面积全柔性染料敏化太阳能电池光电性能优化

English

Optimization of the Photoelectric Performance of Large-Scale All-Flexible Dye-Sensitized Solar Cells

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

大面积全柔性染料敏化太阳能电池光电性能优化

English

Optimization of the Photoelectric Performance of Large-Scale All-Flexible Dye-Sensitized Solar Cells

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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