TY - JOUR
T1 - Secondary phases dependence on composition ratio in sprayed Cu 2ZnSnS4 thin films and its impact on the high power conversion efficiency
AU - Vigil-Galán, O.
AU - Espíndola-Rodríguez, M.
AU - Courel, Maykel
AU - Fontané, X.
AU - Sylla, D.
AU - Izquierdo-Roca, V.
AU - Fairbrother, A.
AU - Saucedo, E.
AU - Pérez-Rodríguez, A.
N1 - Funding Information:
This work has been supported by the Secretaria de Investigación y Posgrado of IPN under Multidisciplinary Proyects Program . O. Vigil-Galán acknowledges support from COFAA-IPN and SENER-Conacyt (project 000000000117891).
PY - 2013
Y1 - 2013
N2 - In this work we report the relation between different secondary phases formation and the values of Cu/(Zn+Sn) and Zn/Sn ratios of Cu 2ZnSnS4 (CZTS) thin films deposited by pneumatic spray pyrolysis using air as carrier gas. The films were grown on soda lime glass substrates via (CH3COO)2·Zn·2H2O, CuCl2·2H2O, SnCl2·2H 2O and thiourea as precursors salts in the solution. The secondary phases present in the films were determined from Raman spectroscopy and the chemical composition of the elements from X-ray fluorescence (XRF) measurements. Varying the growth parameters and post-deposition thermal and chemical KCN treatments we have studied the different secondary phases formation dependence on the values of the Cu/(Zn+Sn) and Zn/Sn ratios and its impact on the properties of polycrystalline thin films solar cells where CZTS is used as the absorber layer.
AB - In this work we report the relation between different secondary phases formation and the values of Cu/(Zn+Sn) and Zn/Sn ratios of Cu 2ZnSnS4 (CZTS) thin films deposited by pneumatic spray pyrolysis using air as carrier gas. The films were grown on soda lime glass substrates via (CH3COO)2·Zn·2H2O, CuCl2·2H2O, SnCl2·2H 2O and thiourea as precursors salts in the solution. The secondary phases present in the films were determined from Raman spectroscopy and the chemical composition of the elements from X-ray fluorescence (XRF) measurements. Varying the growth parameters and post-deposition thermal and chemical KCN treatments we have studied the different secondary phases formation dependence on the values of the Cu/(Zn+Sn) and Zn/Sn ratios and its impact on the properties of polycrystalline thin films solar cells where CZTS is used as the absorber layer.
KW - CuZnSnS thin films
KW - Raman scattering and X-ray fluorescence characterization
KW - Spray deposition
KW - Thermal and chemical treatments
UR - http://www.scopus.com/inward/record.url?scp=84880065508&partnerID=8YFLogxK
U2 - 10.1016/j.solmat.2013.06.008
DO - 10.1016/j.solmat.2013.06.008
M3 - Artículo
SN - 0927-0248
VL - 117
SP - 246
EP - 250
JO - Solar Energy Materials and Solar Cells
JF - Solar Energy Materials and Solar Cells
ER -