Solution-Based Synthesis and Characterization of Cu2ZnSnS4 Nanocrystals

被引：565

作者：

Riha, Shannon C. ^{[3
]}

Parkinson, Bruce A. ^{[1
,2
]}

Prieto, Amy L. ^{[3
]}

机构：

[1] Univ Wyoming, Dept Chem, Laramie, WY 82071 USA

[2] Univ Wyoming, Sch Energy Resources, Laramie, WY 82071 USA

[3] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2009年 / 131卷 / 34期

关键词：

FILM SOLAR-CELLS; CDSE NANOCRYSTALS; PHOTOVOLTAICS; NANOPARTICLES; CUINSE2; SHAPE; ROUTES;

D O I：

10.1021/ja9044168

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Recent advances have been made in thin-film solar cells using CdTe and Culn(1-x)Ga(x)Se(2) (CIGS) nanoparticles, which have achieved impressive efficiencies. Despite these efficiencies, CdTe and CIGS are not amenable to large-scale production because of the cost and scarcity of Te, In, and Ga. Cu2ZnSnS4 (CZTS), however, is an emerging solar cell material that contains only earth-abundant elements and has a near-optimal direct band gap of 1.45-1.65 eV and a large absorption coefficient. Here we report the direct synthesis of CZTS nanocrystals using the hot-injection method. In-depth characterization indicated that pure stoichiometric CZTS nanocrystals with an average particle size of 12.8 +/- 1.8 nm were formed. Optical measurements showed a band gap of 1.5 eV, which is optimal for a single-junction solar device.

引用

页码：12054 / +

页数：3

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