Structural and optical properties of Cu2ZnSnS4 thin film absorbers from ZnS and Cu3SnS4 nanoparticle precursors

THIN SOLID FILMS

卷:535

Article; Proceedings Paper

Lin, Xianzhong¹  Kavalakkatt, Jaison^1,2  Kornhuber, Kai¹  Levcenko, Sergiu¹  Lux-Steiner, Martha Ch.^1,2  Ennaoui, Ahmed¹ 

[1] Helmholtz Zentrum Berlin Mat & Energie GmbH, D-14109 Berlin, Germany

[2] Free Univ Berlin, Berlin, Germany

关键词: Cu2ZnSnS4;    CZTS;    Optical properties;    Raman spectroscopy;    Photoluminescence;   

DOI  :  10.1016/j.tsf.2012.10.034

来源: Elsevier

【 摘 要 】

Cu2ZnSnS4 (CZTS) has been considered as an alternative absorber layer to Cu(In, Ga)Se-2 due to its earth abundant and environmentally friendly constituents, optimal direct band gap of 1.4-1.6 eV and high absorption coefficient in the visible range. In this work, we propose a solution-based chemical route for the preparation of CZTS thin film absorbers by spin coating of the precursor inks composed of Cu3SnS4 and ZnS NPs and annealing in Ar/H2S atmosphere. X-ray diffraction and Raman spectroscopy were used to characterize the structural properties. The chemical composition was determined by energy dispersive X-ray spectroscopy. Optical properties of the CZTS thin film absorbers were studied by transmission, reflection and photoluminescence spectroscopy. (C) 2012 Elsevier B.V. All rights reserved.

【 授权许可】

Free