An innovative approach for fabrication of Cu2ZnSnSe4 absorber layers using solutions of elemental metal powders

THIN SOLID FILMS

卷:633

Article; Proceedings Paper

Cooper, Carl S.^1,2  Arnou, Panagiota²  Wright, Lewis D.²  Ulicna, Sona²  Walls, John M.²  Malkov, Andrei V.^1,3  Bowers, Jake W.² 

[1] Loughborough Univ, Dept Chem, Loughborough LE11 3TU, Leics, England

[2] Loughborough Univ, Wolfson Sch Mech Elect & Mfg Engn, CREST, Loughborough LE11 3TU, Leics, England

[3] RUDN, Dept Chem, 6 Miklukho Maklaya St, Moscow 117198, Russia

关键词: Copper zinc tin selenide;    Solution process;    Spray-coating;    Kesterite;   

DOI  :  10.1016/j.tsf.2016.12.026

来源: Elsevier

【 摘 要 】

An innovative approach has been demonstrated for the deposition of Cu2ZnSnSe4 (CZTSe) absorber layers. Using a unique, safe solvent combination, moving away from hydrazine, elemental Cu, Zn, Sn and S/Se can be fully dissolved at ambient conditions, with the composition easily controlled. The preparation and the spray deposition of these solutions are performed in air, allowing a quick, easy and inexpensive process. Upon selenisation, large crystals are observed which are identified as the CZTSe kesterite phase using X-ray diffraction and Raman, the latter showing no distinctive signs of any binary or ternary secondary phases. Using this method, CZTSe absorber layers have been prepared for use in thin-film solar cells reaching efficiency of 3.2%. With further device optimisation, improved device performance will be achieved. (C) 2017 The Authors. Published by Elsevier B.V.

【 授权许可】

Free