Structural and Optical Properties of Cu2ZnSnS4 Films Obtained by Pulsed Spray Pyrolysis

Authors O.A. Dobrozhan1 , V.B. Loboda2 , Ya.V. Znamenshchykov1, A.S. Opanasyuk1 , H. Cheong3

1 Sumy State University, 2, Rimsky-Korsakov st., 40007 Sumy, Ukraine

2 Sumy National Agrarian University, 160, Gerasim Kondratyev st., 40021 Sumy, Ukraine

3 Sogang University, Sinsu-dong, 1, Mapo-gu 121-742 Seoul, Republic of Korea

Issue Volume 9, Year 2017, Number 1
Dates Received 25 November 2016; revised manuscript received 31 January 2017; published online 20 February 2017
Citation O.A. Dobrozhan, V.B. Loboda, Ya.V. Znamenshchykov, et al., J. Nano- Electron. Phys. 9 No 1, 01028 (2017)
DOI 10.21272/jnep.9(1).01028
PACS Number(s) 81.05.Hd, 81.15.Rs
Keywords CZTS films, Spray Pyrolysis (9) , Structure (104) , Stoichiometry (2) , Optical properties (22) .
Annotation In this work Cu2ZnSnS4 films obtained by pulsed spray pyrolysis at Ts  673 К using a precursor contained CuCl2∙2H2O, ZnCl2, SnCl2∙2H2O, NH2CHNH2 were investigated by X-ray diffraction, scanning electron microscopy (SEM), energy dispersive X-ray, Raman and optical spectroscopies. It was showed that the stoichiometry, structural, and optical properties of the films were altered in the broad ranges by changing the volume of sprayed precursor solution. The samples, deposited in optimal conditions, had almost single structure of kesterite, as well as stoichiometry and band gap are close to the optimal values for designing highly efficient solar cells.

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