表面修饰的TiO<sub>2</sub>太阳能电池界面特性研究

引用本文: 李艳, 庄全超, 王洪涛, 吴文伟, 赵宇龙, 强颖怀. 表面修饰的TiO₂太阳能电池界面特性研究[J]. 无机化学学报, 2014, 30(4): 763-769. doi: 10.11862/CJIC.2014.052 shu

Citation: LI Yan, ZHUANG Quan-Chao, WANG Hong-Tao, WU Wen-Wei, ZHAO Yu-Long, QIANG Ying-Huai. Electrode Interface Characteristics of TiO₂ Solar Cells with Surface Modification[J]. Chinese Journal of Inorganic Chemistry, 2014, 30(4): 763-769. doi: 10.11862/CJIC.2014.052 shu

表面修饰的TiO₂太阳能电池界面特性研究

李艳 ^1,2, ,
庄全超 ^{3,
,} ,
王洪涛 ^1, ,
吴文伟 ^2, ,
赵宇龙 ^3, ,
强颖怀 ^3,

通讯作者: 庄全超 zhuangquanchao@126.com

基金项目:
学科创新能力提升基金(No.2013XK04)资助项目。 (No.2013XK04)

摘要: 用水热法制备了具有典型锐钛矿晶型的TiO₂纳米材料,采用Cr(NO₃)3对TiO₂薄膜电极进行修饰改性。用X射线衍射(XRD)、扫描电子显微镜(SEM)和光电子能谱(XPS)测试电极的物相及表面结构,结果显示TiO₂薄膜表面包覆一层粒径较大的氧化铬颗粒,整个电极仍保持均匀的多孔结构。电流-电压(I-V)曲线测试结果显示,改性后最佳电极的短路电流和光电转换效率分别比改性前提高了31.1%和40.4%。用电化学阻抗谱(EIS)测试电池的界面特性,从测试结果可以看出,相同偏压下,改性后电池的TiO₂/染料/电解质界面电阻更大,说明氧化铬包覆层在一定程度上抑制了界面的电子复合,改善了电池的光电输出特性。

关键词:

TiO₂薄膜;染料敏化太阳能电池;电化学阻抗谱;表面修饰

English

Electrode Interface Characteristics of TiO₂ Solar Cells with Surface Modification

1.
1 School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China;

Corresponding author: 庄全超 zhuangquanchao@126.com

Received Date: 08 July 2013
Fund Project:
学科创新能力提升基金(No.2013XK04)资助项目。

Abstract: TiO₂ nanomaterial with typital anatase was prepared by hydrothermal method. Asurface modification method was carried out by over layer coating on the surface of TiO₂ thin film using Cr(NO₃)₃. The surface phase and morphology of electrodes were characterized by X ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The results showed that a layer of chromium oxide with larger particles was coated on TiO₂ thin film and the electrode remains homogeneous porous structure. The current-voltage (I-V) curves revealed that short circuit current and photoelectric transfer efficiency of the optimal modified electrode enhanced by 31.1% and 40.4% respectively more than before. Interface characteristics of cells were discussed using EIS. Seen from the results, the resistance of TiO₂/dye/electrolyte interface of modified electrode was much larger than before at the same bias. It is indicated that chromium oxide coating on TiO₂ thin film suppressed the charge recombination reactions and improved the performance of DSSCs.

Key words:

TiO₂ thin film;dye-sensitized solar cells;electrochemical impedance spectroscopy;surface modification

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

表面修饰的TiO₂太阳能电池界面特性研究

通讯作者: 庄全超 zhuangquanchao@126.com

English

Electrode Interface Characteristics of TiO₂ Solar Cells with Surface Modification

Corresponding author: 庄全超 zhuangquanchao@126.com

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

表面修饰的TiO2太阳能电池界面特性研究

通讯作者: 庄全超 zhuangquanchao@126.com

English

Electrode Interface Characteristics of TiO2 Solar Cells with Surface Modification

Corresponding author: 庄全超 zhuangquanchao@126.com

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

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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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