Co-sublimation of CdSexTe1−x layers for CdTe solar cells

Improving the performance of cadmium telluride solar cell (CdTe) with different buffer layers

In this paper, the performance of the buffer layer of Cadmium Telluride (CdTe) thin film solar cell was optimized using SCAPS software. At first, five different buffer layers including CdS, In2S3, ZnO, ZnSe and ZnS with variable thicknesses from 10 to 100 nm have been replaced in the structure of the solar cell and it has been observed. As the thickness of the buffer layer is increased, the eff...

Key Aspects of CdTe/CdS Solar Cells

Recent developments in the following areas are briefly reviewed: a) the electrical structure of grain boundaries in CdTe absorbers, b) impurities and non-stoichiometry in CdTe solar cells and c) use of Sb2Te3 in contacts to CdTe. Nominally identical solar cells fabricated using 99.999% pure CdTe feedstock from two different suppliers were compared. Differences in the photovoltaic response and a...

Preparation and Characterization of CdTe Solar Cells

Current Transients in CdS/CdTe Solar Cells

Current transient responses to voltage and illumination steps are investigated to elucidate the mechanisms involved in carrier transport in CdS/CdTe cells. For most cells, the response to a dark, forward-bias step after a long dark soak at zero bias is a current growth curve For one such cell, the magnitude of the transient is ≈ 22% of the starting value with half of the growth occurring within...

CRITICAL ISSUES AND RESEARCH NEEDS FOR CdTe-BASED SOLAR CELLS

We present a review of the basic features of polycrystalline thin-film CdTe solar cells and modules and then survey the outstanding fundamental issues and research challenges for application of this materials system to photovoltaic devices.