Study of Precursor-Inks Designed for High-Quality Cu2ZnSnS4 Films for Low-Cost PV Application

被引：9

作者：

Trifiletti, Vanira ^{[1
,2
]}

Mostoni, Silvia ^{[1
,2
]}

Butrichi, Fabio ^{[1
,2
]}

Acciarri, Maurizio ^{[1
,2
,3
]}

Binetti, Simona ^{[1
,2
]}

Scotti, Roberto ^{[1
,2
]}

机构：

[1] Univ Milano Bicocca, Dept Mat Sci, Via Cozzi 55, I-20125 Milan, Italy

[2] Univ Milano Bicocca, Solar Energy Res Ctr MIB SOLAR, Via Cozzi 55, I-20125 Milan, Italy

[3] Univ Milano Bicocca, Interdept Microscopy Lab, Via Cozzi 55, I-20125 Milan, Italy

来源：

CHEMISTRYSELECT | 2019年 / 4卷 / 17期

关键词：

acetate; kesterite; molecular ink; solar cell; sol-gel; secondary phases; DIMETHYL-SULFOXIDE; SOLAR-CELLS; THIN-FILMS; ABSORPTION SPECTRA; COMPLEXES; THIOUREA; CRYSTAL; COPPER; ZINC; GEL;

D O I：

10.1002/slct.201900170

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Kesterite compound Cu2ZnSnS4 is the most promising next leader in the chalcogenide thin films technology as it is based on earth-abundant elements. In this work, kesterite thin films were prepared with a wet chemistry method by using a DMSO solution containing thiourea and acetylacetone, without further addition of vapour sulfur compounds to obtain the Cu2ZnSnS4 phase. The composition and stability of the molecular precursor-ink were investigated by EPR, IR and Raman spectroscopy. Acetate precursors were proved to have a primary role in creating a network in the sol-gel transition by bridging the metals in solution, together with thiourea and DMSO coordination. The high-quality of the thin films, obtained by spin coating deposition and thermal treatment at 500 degrees C, was assessed by XRD, Raman, Energy-Dispersive spectroscopy and optical analysis, which revealed a direct band gap of 1.5eV. Therefore, the precursor-ink and the deposition process developed in this work are very well suitable for solar cell application.

引用

页码：4905 / 4912

页数：8

共 60 条

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