ISSN: 1813-0410

Author : Gabbar Obeid, Batool


Effective ZnO Doping by pulsed laser deposition to Improve the efficiency of the solar cells of TiO2at 200 C0

Batool Gabbar Obeid

journal of kerbala university, Volume 13, Issue 3, Pages 63-68

In this research was prepare TiO2: ZnO have been deposited on the glass substrates by the pulsed lasertechnique,the use of Nd:YAG laser with wavelength (1064)nm and energy 600mJand have been deposited with different concentration(0.03,0.05,0.07,0.1)% of ZnO at annealing temperature 200 C0with thickness (400 nm). The TiO2thin films showed n-type conductivity, according to Hall measurements, the carrier concentration of TiO2 thin films had increasedfrom (18.5× 1010 to 45.16× 1010 cm−3). The average absorbance value of TiO2 thin films was improved from (3.412*10-6to 8.654*10-6)by the doping of ZnO., These improved properties should contribute to the efficiency of the photovoltaic effect of the photogenerated charged carriers. The( I-V) characteristic of (Al / TiO2: ZnO /n-Si / Al) heterojunction show that the solar cell which is produced at X=0.1% by efficiency (η) =8.769