Manoj K. Jamarkattel, A. Phillips, Geethika K. Liyanage, Fadhil K. Alfadhili, Ebin Bastola, V. Plotnikov, A. Compaan, R. Ellingson, M. Heben
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Ultra-Thin and Lightweight CdS/CdTe Solar Cell Fabricated on Ceramic Substrate for Space Applications
Ultra-thin and light weight cadmium telluride (CdTe) solar cells were fabricated on 20-micron thick yttria-stabilized zirconia (3YSZ) substrate in superstrate configuration. Optimization of CdCl2 treatment and copper diffusion were done to enhance the preformation of the device. Due to high reflectance off the substrate surface, anti -reflecting layer was deposited on the front of the device to reduce the reflectance which increase current density. Here, we present ultra-thin and light weight CdS/CdTe solar cells with conversion efficiency of 11.2 % and specific power> 6 kW/kg. This could make CdTe based solar cells applicable for space applications.
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