A mild solvothermal route to kesterite quaternary Cu2ZnSnS4 nanoparticles

被引：128

作者：

Cao, M. ^{[1
,2
]}

Shen, Y. ^{[1
,2
]}

机构：

[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Tech Phys, Natl Lab Infrared Phys, Shanghai 200083, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 318卷 / 01期

关键词：

Crystal structure; Nanoparticles; Solar cell; THIN-FILMS; FABRICATION;

D O I：

10.1016/j.jcrysgro.2010.10.071

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Quaternary kesterite-type Cu2ZnSnS4 (CZTS) nanoparticles for low-cost thin film solar cell were successfully synthesised using a relatively simple and convenient solvothermal route. Nanoparticles with diameters of about 5-10 nm were obtained at the temperature of 180 degrees C, analyzed by transmission electron microscopy (TEM). The morphologies of the continuous CZTS films with satisfactory stoichiometry were characterized by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDXA). The crystallinity of CZTS nanoparticles was greatly improved by annealing in H2S (5%)/Ar mixed gases analyzed by X-ray diffraction (XRD). High-resolution X-ray photo-emission spectroscopy (XPS) analysis of the four constituent elements confirmed the purity and composition of CZTS nanoparticles. UV-vis absorption spectra measurement indicated that the band gap of as-synthesised CZTS nanoparticles was about 1.5 eV, which was near the optimum value for photovoltaic solar conversion in a single-band-gap device. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1117 / 1120

页数：4

共 16 条

[1] Synthesis of Cu2ZnSnS4 Nanocrystal Ink and Its Use for Solar Cells [J].