期刊
PV ASIA PACIFIC CONFERENCE 2012
卷 33, 期 -, 页码 198-202出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.egypro.2013.05.058
关键词
CZTS thin films; kesterite; spin coating; solar cell
The thin films of Cu2ZnSnS4 (CZTS) have been successfully deposited on soda lime glass by spin coating technique. CZTS films were prepared by spin coating of a solution prepared by dissolving of copper (II) chloride, zinc (II) chloride, tin (IV) chloride and Thiourea in 2-Methoxyethanol. The X-ray diffraction studies showed the formation of kesterite phase with the peaks corresponding to (112), (220) and (312) planes. Raman spectrum indicated the presence of principal kesterite peak at 333 cm(-1). SEM study showed that the surface of CZTS film was uniform. The electrical measurements showed the p-type conductivity, resistivity similar to 0.014 Omega-cm with carrier concentration similar to 7.9x10(19) cm(-3)and mobility similar to 5.43 cm(2) V(-1)s(-1) at room temperature. CZTS film showed optical absorbance of 10(4) cm(-1) with optical band gap of 1.5 eV. Thus, CZTS films can be made using a simple spin coating technique, but improvement in the film properties by post deposition needs to be done for making photovoltaic quality films. (c) 2013 The Authors. Published by Elsevier Ltd.
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