Compositional optimization of photovoltaic grade Cu2ZnSnS4 films grown by pneumatic spray pyrolysis

被引：64

作者：

Espindola-Rodriguez, M. ^{[1
,2
]}

Placidi, M. ^{[1
]}

Vigil-Galan, O. ^{[2
]}

Izquierdo-Roca, V. ^{[1
]}

Fontane, X. ^{[1
]}

Fairbrother, A. ^{[1
]}

Sylla, D. ^{[1
]}

Saucedo, E. ^{[1
]}

Perez-Rodriguez, A. ^{[1
,3
]}

机构：

[1] IREC, St Adria De Besos 08930, Barcelona, Spain

[2] IPN, ESFM, Mexico City 07738, DF, Mexico

[3] Univ Barcelona, IN2UB, Dept Elect, E-08028 Barcelona, Spain

来源：

THIN SOLID FILMS | 2013年 / 535卷

关键词：

Kesterite; CZTS; Spray pyrolysis; Solar cell; Raman spectroscopy; THIN-FILMS; MATERIALS AVAILABILITY; RAMAN-SCATTERING; EFFICIENCY; STANNITE; FABRICATION;

D O I：

10.1016/j.tsf.2012.12.082

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the compositional optimization of thin film deposition of Cu2ZnSnS4 (CZTS) onto Mo/glass substrates for low-cost solar cell applications, using pneumatic spray pyrolysis technique in air ambient. The influence of both, the starting-solution precursor's concentrations (mainly copper chloride and zinc acetate) and the further annealing conditions on the properties of the CZTS have been investigated. Before and after annealing, the films were analyzed with regards to its compositional, structural, morphological and electrical properties. Globally it was found that Cu poor and Zn rich conditions are needed to obtain the desired properties on the CZTS films, minimizing the probability for secondary phase occurrence. Solar cell prototypes were fabricated using a classical CZTS/CdS/i-ZnO/ZnO: Al structure and characterized, correlating their optoelectronic properties with the chemico-physical, structural and electrical characteristics of the layers. Selective oxidation of Zn containing phases is identified as the major drawback of the technique, and its elimination as the most important challenge to improve the device's performance. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：67 / 72

页数：6

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