A facile arrested precipitation method for synthesis of pure wurtzite Cu2ZnSnS4 nanocrystals using thiourea as a sulfur source

被引：20

作者：

Li, Chunya ^{[1
,2
]}

Ha, Enna ^{[1
]}

Wong, Wing-Leung ^{[1
]}

Li, Cuiling ^{[2
]}

Ho, Kam-Piu ^{[1
]}

Wong, Kwok-Yin ^{[1
]}

机构：

[1] Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Kowloon, Hong Kong, Peoples R China

[2] S Cent Univ Nationalities, Key Lab Analyt Chem State Ethn Affairs Commiss, Coll Chem & Mat Sci, Wuhan 430074, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 11期

关键词：

Semiconductors; Chemical synthesis; X-ray diffraction; Electron microscopy; Impedance spectroscopy; SOLAR-CELL; THIN-FILMS; MATERIALS AVAILABILITY; THERMAL-DECOMPOSITION; PHOTOVOLTAICS; PRECURSORS;

D O I：

10.1016/j.materresbull.2012.08.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A facile route for the synthesis of wurtzite Cu2ZnSnS4 (CZTS) nanocrystals was developed by an arrested precipitation method at 240 degrees C under simple reaction conditions with diethanolamine as the solvent and thiourea as sulfur source. The structure and morphology of the CZTS nanocrystals were characterized by X-ray diffraction and transmission electron microscopy. Control experiments demonstrated that CZTS nanocrystals which are purely wurtzite structure are readily obtained. The average diameter of the bulk CZTS products is found to be 10 +/- 1.1 nm. The estimated direct bandgap energy is 1.56 eV, which indicates that the CZTS nanocrystals produced by this method possess promising applications in photovoltaic devices. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：3201 / 3205

页数：5

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