Thermally evaporated CdS/CdTe thin film solar cells: Optimization of CdCl2 evaporation treatment on absorber layer

被引：4

作者：

Kumarasinghe, R. K. K. G. R. G. ^{[1
,2
]}

Kumarasinghe, P. K. K. ^{[4
]}

Wijesundera, R. P. ^{[3
]}

Dassanayake, B. S. ^{[1
,2
]}

机构：

[1] Univ Peradeniya, Postgrad Inst Sci, Peradeniya, Sri Lanka

[2] Univ Peradeniya, Dept Phys, Peradeniya, Sri Lanka

[3] Univ Kelaniya, Fac Sci, Dept Phys & Elect, Kelaniya, Sri Lanka

[4] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA

来源：

CURRENT APPLIED PHYSICS | 2022年 / 33卷

关键词：

Thermal evaporation; CdCl2; CdTe; Annealing temperature; CdS/CdTe; Solar cells; OPTICAL-PROPERTIES; PHYSICAL-PROPERTIES; HEAT-TREATMENT; PARAMETERS; CONSTANTS; EVOLUTION; THICKNESS; DEPENDENCE; GRAIN; GAP;

D O I：

10.1016/j.cap.2021.10.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CdCl2 treatment is crucial in the fabrication of highly efficient CdS/CdTe thin-film solar cells. This study reports a comprehensive analysis of thermal evaporated CdS/CdTe thin-film solar cells when the CdTe absorber layer is CdCl2 annealed at temperatures from 340 to 440 degrees C. Samples were characterized for structural, optical, morphological and electrical properties. The films annealed at 400 degrees C showed better crystallinity with a cubic zinc blende structure having large grains. Higher refractive index, optical conductivity, and absorption coefficient were recorded for the CdTe films annealed at 400 degrees C with CdCl2. Optimum photoactive properties for CdS/CdTe thin-film solar cells were also obtained when samples were annealed at 400 degrees C for 20 min with CdCl2, and the best device exhibited V-OC of 668.4 mV, J(SC) of 13.6 mA cm(-2), FF of 53.9% and an efficiency of 4.9%.

引用

页码：33 / 40

页数：8

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