Open AccessSubstrate Rotation Chemical Bath Deposition of Cadmium Sulfide Buffer Layers for Thin Film Solar Cell Application
Author(s) -
Kshitij Taneja,
Alekhya Venkata Madiraju,
Manoj Kumar,
Raghunandan Seelaboyina,
Anup Kumar Keshri,
Sarang Mahajan
Publication year - 2013
Publication title -
conference papers in energy
Language(s) - English
Resource type - Journals
eISSN - 2314-582X
pISSN - 2314-4009
DOI - 10.1155/2013/483628
Subject(s) - chemical bath deposition , cadmium sulfide , scanning electron microscope , thin film , materials science , substrate (aquarium) , tin oxide , analytical chemistry (journal) , deposition (geology) , band gap , layer (electronics) , solar cell , chemical engineering , doping , chemistry , nanotechnology , optoelectronics , composite material , metallurgy , paleontology , oceanography , chromatography , sediment , geology , engineering , biology
A method for deposition of cadmium sulfide (CdS) buffer layer thin films on fluorine-doped tin oxide (FTO) glass, by chemical bath deposition (CBD), has been modified. For achieving relatively uniform and pin-hole-free CdS films, substrate rotation, concentration of CdS salts, and deposition time were optimized. The deposited films were characterized by UV-Vis-NIR spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and atomic force microscopy (AFM). Band gap of ~ 2.4 eV was measured by UV-Vis-NIR spectroscopy, CdS phase was confirmed by XRD, and film uniformity and roughness ( ~ 15–20 nm) were measured by SEM and AFM, respectively.
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