The large-area CdTe thin film for CdS/CdTe solar cell prepared by physical vapor deposition in medium pressure

2016 ◽  
Vol 360 ◽  
pp. 744-748 ◽  
Author(s):  
Run Luo ◽  
Bo Liu ◽  
Xiaoyan Yang ◽  
Zheng Bao ◽  
Bing Li ◽  
...  
2001 ◽  
Vol 668 ◽  
Author(s):  
Brian E. McCandless

ABSTRACTA chemical and kinetic basis underlying processing strategies for thin film polycrystalline CdTe/CdS solar cell fabrication is presented. The processing conditions employed for moderate and high conversion efficiency CdTe/CdS solar cells fall within a consistent framework based on temperature and concentration of CdCl2 and O2 species during film deposition or thermal treatment. Detailed microstructural and compositional results are compared for thin-film CdTe/CdS structures with CdTe deposited by physical vapor deposition, electrodeposition and close-space sublimation. X-ray diffraction coupled with a model for diffusion of CdS into CdTe is used to determine the effect of treatment conditions on bulk and grain boundary diffusion coefficients. The effects of CdS diffusion, oxides, recrystallization and grain growth with respect to device efficiency, stability and process control over large area are discussed.


2001 ◽  
Vol 67 (1-4) ◽  
pp. 21-29 ◽  
Author(s):  
A. Hanafusa ◽  
T. Aramoto ◽  
M. Tsuji ◽  
T. Yamamoto ◽  
T. Nishio ◽  
...  

Solar Energy ◽  
2019 ◽  
Vol 180 ◽  
pp. 559-566 ◽  
Author(s):  
Mohammad Sharafat Hossain ◽  
Kazi Sajedur Rahman ◽  
Mohammad Rezaul Karim ◽  
Mohammed Omer Aijaz ◽  
Mushtaq Ahmad Dar ◽  
...  

Coatings ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 325 ◽  
Author(s):  
Ben Wang ◽  
Xiuhua Fu ◽  
Shigeng Song ◽  
Hin Chu ◽  
Desmond Gibson ◽  
...  

Optimization of thin film uniformity is an important aspect for large-area coatings, particularly for optical coatings where error tolerances can be of the order of nanometers. Physical vapor deposition is a widely used technique for producing thin films. Applications include anti-reflection coatings, photovoltaics etc. This paper reviews the methods and simulations used for improving thin film uniformity in physical vapor deposition (both evaporation and sputtering), covering characteristic aspects of emission from material sources, projection/mask effects on film thickness distribution, as well as geometric and rotational influences from apparatus configurations. Following the review, a new program for modelling and simulating thin film uniformity for physical vapor deposition was developed using MathCAD. Results from the program were then compared with both known theoretical analytical equations of thickness distribution and experimental data, and found to be in good agreement. A mask for optimizing thin film thickness distribution designed using the program was shown to improve thickness uniformity from ±4% to ±0.56%.


2019 ◽  
Vol 87 (3) ◽  
pp. 30101 ◽  
Author(s):  
Abdel-baset H. Mekky

Semiconductor materials cadmium sulfide (CdS) and cadmium telluride (CdTe) are employed in the fabrication of thin film solar cells of relatively excessive power conversion efficiency and low producing price. Simulations of thin film CdS/CdTe solar cell were carried out using SCAPS-1D. The influence of temperature field on the variation of CdTe solar cell parameters such as current–voltage, capacitance–voltage characteristics and the external quantum efficiency was investigated theoretically. For use temperatures, one obtains the external quantum efficiency has the same profiles. However, the effect of the temperature on the Mott-Schottky curves is slightly noted by variations on the characteristics. This conclusion can be used by solar cell manufacturers to improve the solar cell parameters with the biggest possible gain in device performance.


Author(s):  
Dongming Wang ◽  
Guangwei Wang ◽  
Yanbo Cai ◽  
Lingling Wu ◽  
Peng Zhu ◽  
...  

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