染料敏化太阳能电池无FTO煤基炭对电极的研究

doi:10.3724/SP.J.1077.2013.12237

无机材料学报 ›› 2013, Vol. 28 ›› Issue (3): 273-277.DOI: 10.3724/SP.J.1077.2013.12237

染料敏化太阳能电池无FTO煤基炭对电极的研究

孟凡宁¹, 王春雷¹, 武明星², 林逍², 王同华¹, 马廷丽²

(大连理工大学 1. 精细化工国家重点实验室炭材料研究室; 2. 精细化工国家重点实验室, 大连116024)

收稿日期:2012-04-16 修回日期:2012-05-24 出版日期:2013-03-20 网络出版日期:2013-02-20
作者简介:孟凡宁(1986–), 女, 硕士研究生. E-mail: szymfn123@163.com

Preparation of FTO-free and Coal Based Carbon Counter Electrodes for Dye Sensitized Solar Cells

MENG Fan-Ning¹, WANG Chun-Lei¹, WU Ming-Xing², LIN Xiao², WANG Tong-Hua¹, MA Ting-Li²

(1. Carbon Research Laboratory, State Key Laboratory of Fine Chemicals, Dalian University of Technology 116024, China; 2. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China)

Received:2012-04-16 Revised:2012-05-24 Published:2013-03-20 Online:2013-02-20
About author:MENG Fan-Ning. E-mail: szymfn123@163.com

摘要/Abstract

摘要： 分别以气煤、焦煤、瘦煤为原料制备了低成本、高性能煤基炭对电极(counter electrodes, CEs), 并使用煤基炭CE同时代替导电玻璃基底和催化层, 分别考察了浸渍和表面修饰对煤基炭CE结构和光电性能的影响。采用X射线衍射、扫描电镜和电化学阻抗谱等表征手段, 对煤基炭CE的结构和性能进行了表征。结果表明: 浸渍后煤基炭CE形成了底层致密表层多孔的一体化结构; 经过表面修饰的煤基炭CE表现出良好的光电性能, 其开路电压(V_oc)、短路电流密度(J_sc)和填充因子(FF)分别为0.79 V、13.48 mA/cm²和0.67, 光电转化效率(η)达到了7.16%, 与传统Pt电极的效率相当, 比石墨电极效率提高30%。煤基炭CE是传统Pt/FTO电极的良好替代材料。

关键词: 煤基炭, 对电极, 一体化, 染料敏化太阳能电池

Abstract: The coal-based carbon counter electrodes (CEs) with low-cost and high-performance were prepared from different coal powders such as gas coal, coking coal and lean coal, and they were used to substitute both conductive glass substrate and catalyst layer. The effects of impregnation and surface modification of the coal-based carbon CEs on their structure and photovoltaic performance were investigated. XRD, SEM and electrochemical impedance spectroscope were used to character the structure and performance of coal based carbon CEs. Results show that the coal based carbon CE after impregnated is the integrative CE with porous top surface and dense bottom. The solar cell with coal based carbon CE with surface modified demonstrates high photovoltaic performance with open circuit photo-voltage (V_oc) of 0.79 V, short circuit photocurrent density (J_sc) of 13.48 mA/cm², fill factor (FF) of 0.67, and solar-to-electricity conversion efficiency (η) of 7.16%, which is 30% higher than that of the cell with graphite electrode, and comparable to that of the cell with Pt electrode. The results indicate that the as-prepared coal based carbon CE is a promising CE candidate for substitute conventional?Pt/FTO counter electrode.

Key words: coal based carbon, counter electrode, integration, dye sensitized solar cell

中图分类号:

孟凡宁, 王春雷, 武明星, 林逍, 王同华, 马廷丽. 染料敏化太阳能电池无FTO煤基炭对电极的研究[J]. 无机材料学报, 2013, 28(3): 273-277.

MENG Fan-Ning, WANG Chun-Lei, WU Ming-Xing, LIN Xiao, WANG Tong-Hua, MA Ting-Li. Preparation of FTO-free and Coal Based Carbon Counter Electrodes for Dye Sensitized Solar Cells[J]. Journal of Inorganic Materials, 2013, 28(3): 273-277.

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染料敏化太阳能电池无FTO煤基炭对电极的研究

Preparation of FTO-free and Coal Based Carbon Counter Electrodes for Dye Sensitized Solar Cells

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