Impact of thermal annealing on optical properties of vacuum evaporated CdTe thin films for solar cells

2016 ◽  
Author(s):  
Subhash Chander ◽  
A. Purohit ◽  
C. Lal ◽  
S. P. Nehra ◽  
M. S. Dhaka
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Solar Cells ◽  
Thermal Annealing ◽  
Cdte Thin Films

scholarly journals Improving Performance of CIGS Solar Cells by Annealing ITO Thin Films Electrodes

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Chuan Lung Chuang ◽  
Ming Wei Chang ◽  
Nien Po Chen ◽  
Chung Chiang Pan ◽  
Chung Ping Liu
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Solar Cells ◽  
Indium Tin Oxide ◽  
Copper Indium Gallium Diselenide ◽  
Glass Substrates ◽  
Ito Film ◽  
Ito Thin Films ◽  
Cigs Solar Cells ◽  
Ito Films

Indium tin oxide (ITO) thin films were grown on glass substrates by direct current (DC) reactive magnetron sputtering at room temperature. Annealing at the optimal temperature can considerably improve the composition, structure, optical properties, and electrical properties of the ITO film. An ITO sample with a favorable crystalline structure was obtained by annealing in fixed oxygen/argon ratio of 0.03 at 400°C for 30 min. The carrier concentration, mobility, resistivity, band gap, transmission in the visible-light region, and transmission in the near-IR regions of the ITO sample were-1.6E+20 cm−3,2.7E+01 cm2/Vs,1.4E-03 Ohm-cm, 3.2 eV, 89.1%, and 94.7%, respectively. Thus, annealing improved the average transmissions (400–1200 nm) of the ITO film by 16.36%. Moreover, annealing a copper-indium-gallium-diselenide (CIGS) solar cell at 400°C for 30 min in air improved its efficiency by 18.75%. The characteristics of annealing ITO films importantly affect the structural, morphological, electrical, and optical properties of ITO films that are used in solar cells.

scholarly journals C-VCalculations in CdS/CdTe Thin Films Solar Cells with aCdSxTe1-xInterlayer

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
A. Gonzalez-Cisneros ◽  
F. L. Castillo-Alvarado ◽  
J. Ortiz-Lopez ◽  
G. Contreras-Puente
Keyword(s):  
Experimental Data ◽  
Thin Films ◽  
Solar Cells ◽  
Photovoltaic Cells ◽  
Cdte Film ◽  
Vapor Transport ◽  
Cdte Solar Cells ◽  
Cdte Thin Films ◽  
Cds Film ◽  
Theoretical Results

In CdS/CdTe solar cells, chemical interdiffusion at the interface gives rise to the formation of an interlayer of the ternary compoundCdSxCdTe1-x. In this work, we evaluate the effects of this interlayer in CdS/CdTe photovoltaic cells in order to improve theoretical results describing experimentalC-V(capacitance versus voltage) characteristics. We extended our previous theoretical methodology developed on the basis of three cardinal equations (Castillo-Alvarado et al., 2010). The present results provide a better fit to experimental data obtained from CdS/CdTe solar cells grown in our laboratory by the chemical bath deposition (for CdS film) and the close-spaced vapor transport (for CdTe film) techniques.

Optical properties of vacuum-evaporated CdTe thin films

1984 ◽  
Vol 120 (1) ◽  
pp. 23-30 ◽  
Author(s):  
J. Aranda ◽  
J.L. Morenza ◽  
J. Esteve ◽  
J.M. Codina
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Cdte Thin Films

Influence of thermal annealing on structural and optical properties of RF-sputtered LiTaO3 thin films

2018 ◽  
Vol 6 (2) ◽  
pp. 026405 ◽  
Author(s):  
Binwei Sun ◽  
Jun Wang ◽  
Jun Gou ◽  
Xianchao Liu ◽  
Yadong Jiang
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Thermal Annealing ◽  
Structural And Optical Properties
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