Superior Photocurrent of Quantum Dot Sensitized Solar Cells Based on PbS : In/CdS Quantum Dots

被引：3

作者：

Huang, Zongbo ^{[1
]}

Zou, Xiaoping ^{[1
]}

机构：

[1] Beijing Informat Sci & Technol Univ, Res Ctr Sensor Technol, Sch Appl Sci,Minist Educ, Beijing Key Lab Sensor,Key Lab Modern Measurement, Beijing 100101, Peoples R China

来源：

INTERNATIONAL JOURNAL OF PHOTOENERGY | 2015年 / 2015卷

基金：

北京市自然科学基金;

关键词：

TIO2; EFFICIENT; CDSE; PHOTOANODES; EMITTERS; BAND;

D O I：

10.1155/2015/657871

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

PbS : In and CdS quantum dots (QDs) are sequentially assembled onto a nanocrystalline TiO2 film to prepare a PbS : In/CdS cosensitized photoelectrode for QD sensitized solar cells (QDSCs). The results show that PbS : In/CdS QDs have exhibited a significant effect in the light harvest and performance of the QDSC. In the cascade structure of the electrode, the reorganization of energy levels between PbS and TiO2 forms a stepwise structure of band-edge levels which is advantageous to the electron injection into TiO2. Energy conversion efficiency of 2.3% is achieved with the doped electrode, under the illumination of one sun (AM1.5, 100 mW cm(2)). Besides, a remarkable short circuit current density (up to 23 mA.cm(-2)) is achieved in the resulting PbS : In/CdS quantum dot sensitized solar cell, and the related mechanism is discussed.

引用

页数：9

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