The promising photo anode of graphene/zinc titanium mixed metal oxides for the CdS quantum dot-sensitized solar cell

被引：31

作者：

Cao, Jiupeng ^{[1
]}

Zhu, Yatong ^{[1
]}

Yang, Xiaoyu ^{[1
]}

Chen, Yang ^{[1
]}

Li, Yuxiang ^{[1
]}

Xiao, Hongdi ^{[1
]}

Hou, Wanguo ^{[2
]}

Liu, Jianqiang ^{[1
]}

机构：

[1] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China

[2] Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Peoples R China

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2016年 / 157卷

基金：

中国国家自然科学基金;

关键词：

Graphene; Quantum dot sensitized solar cell; Layered double hydroxide; Mixed metal oxides; Photo anode; PHOTOVOLTAIC PERFORMANCE; CHARGE-TRANSPORT; TIO2; FILMS; EFFICIENCY; NANOSHEETS; LAYER; CIRCUIT;

D O I：

10.1016/j.solmat.2016.08.003

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this study, the graphene sheets produced by supercritical CO2 exfoliation of graphite were used to improve the photovoltaic performance of the CdS quantum dot-sensitized solar cells (QDSSCs). The zinc titanium mixed metal oxides (MMO) based on layered double hydroxide (LDH) precursor and the graphene/MMO hybrid materials were used as photoanodes of the CdS QDSSCs, respectively. The presence of graphene in the photoanodes was confirmed by Raman spectroscopy, X-ray diffraction (XRD) and Energy-dispersive X-ray spectroscopy (EDS). The influence of graphene concentration on the performance of CdS QDSSCs was studied by electrochemical method. The addition of graphene enhanced QDs adsorption properties and lowered internal resistance, so the QDSSCs displayed higher power conversion efficiency (PCE). Accordingly, the highest PCE of the QDSSCs based on graphene/Zn-Ti MMO photoanode reached 0.44% and increased 37.5% in compared with that based on plain Zn-Ti MMO working electrodes. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：814 / 819

页数：6

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