Superstrate design for increased CdS/CdTe solar cell efficiencies

The optical and electrical properties of the glass superstrate and window layer materials play critical roles in the performance of CdTe photovoltaic devices. The compositional modifications made to tailor the transmission spectra in these materials so as to maximize the Jsc of the device will be re...

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Bibliographic Details
Main Authors: Zhixun Ma, McCamy, James, Kephart, Jason M., Geisthardt, Russell M., Sampath, W. S., Plotnikov, Victor V., Compaan, Alvin
Format: Conference Proceeding
Language:English
Subjects:
Buffer layers
cadmium compounds
Coatings
Glass
II-VI semiconductor materials
Optical buffering
Optical films
Performance evaluation
photovoltaic cells
semiconductor device manufacture
thin films
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Summary:The optical and electrical properties of the glass superstrate and window layer materials play critical roles in the performance of CdTe photovoltaic devices. The compositional modifications made to tailor the transmission spectra in these materials so as to maximize the Jsc of the device will be reviewed. Progress towards improving the electrical characteristics (e.g., carrier mobility) of the transparent conductive oxides as well as materials design to improve the interface behavior at the window layer will be presented. Recent results showing the impact of these changes on achieving thinner CdS window layers and improved device performance in devices made by both thermal and energetic deposition methods will be discussed.
ISSN:0160-8371
DOI:10.1109/PVSC.2013.6744343