PROPERTIES OF CdSe FILMS PULSE ELECTRODEPOSITED FROM NON-AQUEOUS BATH

CdSe thin films were pulse electrodeposited at room temperature and at different duty cycles in the range of 10 -50 % from diethylene glycol bath. The precursors were 0.1 M CdCl 2 , 0.1M SeO 2 and the deposition potential was -0.85V(SCE). The films exhibited hexagonal structure. Optical absorption measurements indicated a direct band gap of 1.67 eV. The grain size increased from 10 -30 nm and the surface roughness increased from 0.5 nm -2.0 nm as the duty cycle increased from 10 -50 %. The as deposited films exhibited photoactivity when used as photoelectrodes in Photoelectrochemical cells. (Receive