Effect of deposition time on structural and physical properties of Cu2CdSnS4 thin films prepared by spray pyrolysis technique: experimental and ab initio study

被引：19

作者：

Rouchdi, M. ^{[1
]}

Salmani, E. ^{[2
]}

Hassanain, N. ^{[1
]}

Mzerd, A. ^{[1
]}

机构：

[1] Mohammed V Univ, Fac Sci, Mat Phys Lab, BP 1014, Rabat, Morocco

[2] Mohammed V Univ, Fac Sci, LMPHE, BP 1014, Rabat, Morocco

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2017年 / 49卷 / 04期

关键词：

Cu2CdSnS4; Thin films; Spray pyrolysis; Optical properties; Hall effect; Deposition times; Ab-initio calculations; THERMOELECTRIC PROPERTIES; OPTICAL-PROPERTIES; SOLAR-CELLS; NANOCRYSTALS; BINARY; FE; NI;

D O I：

10.1007/s11082-017-1005-8

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Cu2CdSnS4 (CCdTS) thin films were synthesized using chemical spray pyrolysis deposition technique. The effect of various deposition times (20, 40, 60 min) on growth of these films was investigated. The as-synthesized Cu2CdSnS4 thin films were characterized by X-ray diffraction (XRD), ultraviolet-visible (UV-Vis) spectroscopy, Raman spectroscopy and Hall Effect measurements. The XRD pattern of Cu2CdSnS4 structured in stannite phase with preferential orientations along (112) planes. Raman spectrum revealed very strong peak at about 333 cm(-1). The films have the direct optical band gaps of 1.39-1.5 eV. The optimum hole mobility was found to be 3.212 x 10(1) cm(2) v(-1) s(-1) for the film deposited on 60 min. The electronic structure and optical properties of the stannite structure Cu2CdSnS4 were obtained by ab initio calculations using the Korringa-Kohn-Rostoker method combined with the Coherent Potential Approximation (CPA), as well as CPA confirms our results.

引用

页数：12

共 39 条

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