Heterojunction solar cells are demonstrated employing spray pyrolysis-processed nano-clustered cadmium telluride (CdTe) on DC-sputtered amorphous silicon (a-Si) as p- and n-type layers, respectively. CdTe and a-Si films were subjected to X-ray photoelectron spectroscopic measurements showing Cd 3d (404.9 eV) and Te 3d (575.8 eV) peaks corresponding to CdTe while the peaks Si 2p (98.3 eV) and Si 2 s (148.3 eV) represent a-Si. Heterojunction solar cells with a stacked structure of FTO/a-Si/CdTe/Al resulted in a photo-conversion efficiency of 2.7% for an optimized thickness values of a-Si (1 µm) and CdTe (6 µm) films. © 2019, King Abdulaziz City for Science and Technology.
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A. Ashok, Shantikumar V Nair, and Dr. Mariyappan Shanmugam, “Spray Pyrolysis-Coated Nano-Clustered CdTe on Amorphous Si Thin Films for Heterojunction Solar Cells”, Applied Nanoscience (Switzerland) (In Press), 2019.