Ag2S quantum dot-sensitized solar cells

被引：208

作者：

Tubtimtae, Auttasit ^{[1
,2
]}

Wu, Kun-Lun ^{[1
,2
]}

Tung, Hao-Yu ^{[1
,2
]}

Lee, Ming-Way ^{[1
,2
]}

Wang, Gou Jen ^{[3
,4
]}

机构：

[1] Natl Chung Hsing Univ, Dept Phys, Taichung 402, Taiwan

[2] Natl Chung Hsing Univ, Inst Nanosci, Taichung 402, Taiwan

[3] Natl Chung Hsing Univ, Dept Mech Engn, Taichung 402, Taiwan

[4] Natl Chung Hsing Univ, Inst Biomed Engn, Taichung 402, Taiwan

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 09期

关键词：

Quantum dots; Solar cells; Silver sulfide; Successive ionic layer adsorption; Reaction deposition; TIO2; SULFIDE; ENERGY; CDS;

D O I：

10.1016/j.elecom.2010.06.006

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We present a new photosensitizer - Ag2S quantum dots (QDs) - for solar cells. The QDs were grown by the successive ionic layer adsorption and reaction deposition method. The assembled Ag2S-QD solar cells yield a best power conversion efficiency of 1.70% and a short-circuit current of 1.54 mA/cm(2) under 10.8% sun. The solar cells have a maximal external quantum efficiency (EQE) or 50% at lambda=530 nm and an average EQE of similar to 42% over the spectral range of 400-1000 nm. The effective photovoltaic range covers the visible and near-infrared spectral regions and is similar to 2-4 times broader than that of the cadmium chalcogenide systems - CdS and CdSe. The results show that Ag2S QDs can be used as a highly efficient and broadband sensitizer for solar cells. (C) 2010 Elsevier By. All rights reserved.

引用

页码：1158 / 1160

页数：3

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