Preparation of Hollow Cu2ZnSnS4 Spheres via Solvothermal Method

被引：1

作者：

Zhang Wei ^{[1
]}

Tao Hong-Xiu ^{[1
]}

Wang Qiu-Shi ^{[1
]}

Zhang Li-Na ^{[1
]}

Wang Gui-Qiang ^{[1
]}

机构：

[1] Bohai Univ, Coll New Energy, Jinzhou 121013, Liaoning, Peoples R China

来源：

CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2015年 / 31卷 / 12期

关键词：

Cu2ZnSnS4; hollow sphere; solvothermal; THIN-FILMS; SOLAR-CELLS; NANOCRYSTALS; FABRICATION; PHOTOVOLTAICS;

D O I：

10.11862/CJIC.2015.288

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Hollow Cu2ZnSnS4 spheres were synthesized by a poly(ethylene glycol) (PEG) assisted solvothermal route, employing copper chloride, zinc nitrate, stannous chloride, and thiourea as precursors. The polyethylene glycol (PEG) acting as the template coordination agent plays an important role in the formation of the final product. The formation mechanism of the hollow Cu2ZnSnS4 spheres was also discussed. The microstructure and optical properties of the hollow spheres were characterized by X-ray diffraction (XRD), Raman spectrometer, field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), selected area electron diffraction spectroscopy (SAED), and UV-Vis absorption spectroscopy. The results reveal that the hollow Cu2ZnSnS4 spheres are crystallized in the tetragonal structure with about 600 nm in size. The optical absorption data show band-gap energy (E-g) of 1.52 eV which is optimal for photovoltaic applications.

引用

页码：2411 / 2417

页数：7

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