Processing of Cunse2 Films for Photovoltaics

1993 ◽  
Vol 327 ◽  
Author(s):  
BÜlent M. Basol ◽  
Vijay K. Kapur
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Device Performance ◽  
Large Area ◽  
Electrical And Optical Properties ◽  
Solar Cell Performance ◽  
Photovoltaic Modules ◽  
Photovoltaic Materials ◽  
Polycrystalline Thin Films ◽  
High Efficiency Solar Cells

AbstractCuInSe2and related I-HI-VI2 compound semiconductors containing Ga and S are important photovoltaic materials with electrical and optical properties that can be tuned for optimum device performance. Polycrystalline thin films of ternary and multinary compounds from the Cu(In,Ga)(Se,S)2family have already yielded laboratory size solar cells with over 15 % efficiency. Large area photovoltaic modules with over 10% efficiency have also been demonstrated using these materials. In this contribution we present a brief review of the CuInSe2 material characteristics which are important to solar cell performance and their correlation with the processing variables. We concentrate on films obtained by the selenization technique. Selenization of Cu-In precursors is an approach that has yielded good quality CuInSe2films which have been used for the fabrication of high efficiency solar cells.

Growth of Thin μc-Si:H on Intrinsic a-Si:H for Solar Cells Application

1996 ◽  
Vol 452 ◽  
Author(s):  
P. Pemet ◽  
M. Goetz ◽  
H. Keppner ◽  
A. Shah
Keyword(s):  
Stainless Steel ◽  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Solar Cell Performance ◽  
Hydrogenated Silicon ◽  
Boron Doped ◽  
High Efficiency Solar Cells ◽  
Amorphous Substrates ◽  
Interface Treatment

AbstractThe <p> μc-SiC:H / <i> a-Si:H junction can be considered to be a sub-system of a n/i/p solar cell. Optimised performance of this junction can be assumed to be a key feature for obtaining high efficiency solar cells.In this paper the authors present results on the conductivity of boron doped microcrystalline hydrogenated silicon (<p> μc-Si:H) thin films deposited on amorphous substrates (e.g. glass or glass/<i> a-Si:H). It is shown that, without any treatment of the substrate or of the underlying surface, the <p> layers showed a strongly reduced conductivity. This indicates either a bad nucleation or a poor microcrystalline behaviour. By using an appropriate surface treatment of the substrate, a gain in photoconductivity of about three orders of magnitude could be obtained (σ > 3 S/cm at a layer thickness of 400Å). We conclude from this, that for thin <p> type μc-Si:H layers the nucleation conditions are essential for obtaining best electric properties of the film w.r.t. solar cell performance.Based on these results, interface treatment was successfully implemented in n/i/p solar cells deposited on TCO coated glass and stainless steel. The results of these experiments are also presented.

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 &ldquo;tricks&rdquo; commonly used for obtaining highly efficient devices will be analyzed. A realistic industrial production process will be analytically described.

scholarly journals Unraveling the hidden function of a stabilizer in a precursor in improving hybrid perovskite film morphology for high efficiency solar cells

2016 ◽  
Vol 9 (3) ◽  
pp. 867-872 ◽  
Author(s):  
Zhengguo Xiao ◽  
Dong Wang ◽  
Qingfeng Dong ◽  
Qi Wang ◽  
Wei Wei ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Device Performance ◽  
Film Morphology ◽  
Solar Cell Device ◽  
Hybrid Perovskite ◽  
High Efficiency Solar Cells

The precursor purity is critical for the perovskite film morphology and solar cell device performance.

Fundamental studies on large area Cu(In,Ga)Se2 films for high efficiency solar cells

2001 ◽  
Vol 70 (3) ◽  
pp. 345-361 ◽  
Author(s):  
A.M Hermann ◽  
C Gonzalez ◽  
P.A Ramakrishnan ◽  
D Balzar ◽  
N Popa ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Large Area ◽  
High Efficiency Solar Cells

Enhanced up-converted fluorescence in fluorozirconate based glass ceramics for high efficiency solar cells

2008 ◽  
Author(s):  
Bernd Ahrens ◽  
Bastian Henke ◽  
Paul T. Miclea ◽  
Jacqueline A. Johnson ◽  
Stefan Schweizer
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Glass Ceramics ◽  
High Efficiency Solar Cells
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