Investigation of the Optical and Electrical Properties of ITO/ZnO/CdS/CuO:Co/Ag Structure for Solar Cell

Table 1

Optical properties and preparation conditions of the ZnO, CdS, and CuO:Co thin films.

Element	Deposition technique	Time (min)	Gap (eV)	Thickness (nm)
ZnO	RF-sputtering	10	3.27	55
		20	3.25	102
		30	3.28	150
CdS	Spin-coating	2	2.40	50
CuO:Co	RF-sputtering	90	1.53	750