scholarly journals Development of High-Efficiency, Thin-Film CdTe Solar Cells: Annual Subcontract Report, 1 January 1993 - 31 December 1993

1994 ◽  
Author(s):  
A. Rohatgi ◽  
H. C. Chou ◽  
S. Kamra ◽  
A. Bhat
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Cdte Solar Cells

HIGH EFFICIENCY THIN FILM CdS/CdTe SOLAR CELLS†

1992 ◽  
Vol 12 (1-4) ◽  
pp. 121-132 ◽  
Author(s):  
T. L. CHU ◽  
SHIRLEY S. CHU
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Cdte Solar Cells

MoOx as an Efficient and Stable Back Contact Buffer for Thin Film CdTe Solar Cells

2012 ◽  
Vol 1447 ◽  
Author(s):  
Hao Lin ◽  
Wei Xia ◽  
Hsiang N. Wu ◽  
Ching W. Tang ◽  
Irfan Irfan ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Work Function ◽  
High Efficiency ◽  
Surface Cleaning ◽  
Back Contact ◽  
Metal Electrodes ◽  
Low Resistance ◽  
Cdte Solar Cells ◽  
Cell Stability

ABSTRACTA low-resistance back contact for n-CdS/p-CdTe solar cells has been developed, which utilizes a thermally evaporated MoOx thin film as the buffer layer between the p-CdTe and the back electrode. The low-resistance behavior of back contact is attributed to the high work function of MoOx, which reportedly is as high as 6.8 eV, and thus adequately matches that of p-CdTe. With MoOx as the buffer, a variety of common metals, even those with a low work function such as Al, have been found to be useful as the electrode in forming the back contact. Other advantages of the MoOx buffer include dry application by vacuum deposition, and thus it is particularly suitable for the fabrication of ultra-thin CdTe solar cells without introducing additional shorting defects. Surface cleaning of CdTe films prior to MoOx deposition has also been studied. The cell stability has been evaluated through thermal annealing tests. Thermal degradation has been explained in terms of oxidation of the metal electrodes. CdTe cells with high efficiency and good stability have been demonstrated with MoOx as the back contact buffer and Ni as the electrode.

scholarly journals Photovoltaics with Emphasis on CdTe Solar Cells and Modules

2020 ◽  
Author(s):  
Alessio Bosio
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Inorganic Materials ◽  
Thin Film Solar Cells ◽  
Polycrystalline Thin Film ◽  
Photovoltaic Modules ◽  
Cdte Solar Cells ◽  
High Efficiency Solar Cells ◽  
Photovoltaic Technologies

A brief overview of the main photovoltaic technologies is chronologically presented. Single-crystal and multi-crystalline, epitaxial and thin film inorganic materials are widely used as absorbers in high efficiency solar cells and modules. A schematic representation of the principal devices developed in more then 70 years of research will be displayed and commented. Among thin-film technology, cadmium telluride (CdTe) has achieved a truly impressive development that can commercially compete with silicon, which is still the king of the market. Solar cells made on a laboratory scale have reached efficiencies close to 22%, while modules made with fully automated in-line machines show efficiencies above 18%. Based on the research developed in our laboratory, the fabrication processes of both CdTe polycrystalline thin-film solar cells and photovoltaic modules are critically discussed. The most common substrates, the constituent layers and their interaction, the interfaces and the different “tricks” commonly used for obtaining highly efficient devices will be analyzed. A realistic industrial production process will be analytically described.

scholarly journals High efficiency thin film CdTe solar cells. Second quarterly progress report, July 1, 1980-September 30, 1980

1980 ◽  
Author(s):  
B. Johnson ◽  
H. B. Serreze ◽  
G. Reiff ◽  
G. Entine ◽  
R. B. Goldner
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Progress Report ◽  
Cdte Solar Cells

Progress towards high efficiency thin film CdTe solar cells

Solar Cells ◽  
1988 ◽  
Vol 23 (1-2) ◽  
pp. 49-57 ◽  
Author(s):  
K.W. Mitchell ◽  
C. Eberspacher ◽  
F. Cohen ◽  
J. Avery ◽  
G. Duran ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Cdte Solar Cells

High efficiency CdTe solar cells with a through-thickness polycrystalline CdTe thin film

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 52326-52333 ◽  
Author(s):  
Kai Shen ◽  
Zhizhong Bai ◽  
Yi Deng ◽  
Ruilong Yang ◽  
Dezhao Wang ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Liquid Phase ◽  
Growth Mechanism ◽  
High Efficiency ◽  
Cdte Thin Film ◽  
Preferential Growth ◽  
Cdte Solar Cells ◽  
Crystalline Growth

CdTe preferential growth with through-thickness grains has been achieved. A crystalline growth mechanism assisted by an oxide liquid phase is proposed.

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