Article ID Journal Published Year Pages File Type
1550951 Solar Energy 2012 6 Pages PDF
Abstract

This work reports a process used to obtain CdS/CdTe thin film solar cells with high efficiencies between 14% and 14.6%. The procedure consists of sequentially depositing by RF sputtering and close space sublimation (CSS) of several layers onto a glass substrate, configured as glass/ITO/ZnO/CdS/CdTe/Cu/Mo. The CdTe layer was deposited by CSS at low substrate temperature (500 °C) under Ar–O2 atmosphere and the activation process is performed with a mixture of Freon gas (HCF2Cl) and other gases.

Highlight► We report a process to obtain CdS/CdTe solar cells with 14% efficiency. ► Almost all films are deposited by RF sputtering and CdS is not treated intentionally. ► The CdTe film is deposited by CSS at 500 °C, under Ar–O2 mixture atmosphere. ► We use HCF2Cl gas for activation treatment. ► Our process permits a reproducibility of 90%.

Related Topics
Physical Sciences and Engineering Energy Renewable Energy, Sustainability and the Environment
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