Affiliation: | 1. Promising Centre for Sensors and Electronic Devices PCSED, Col ege of Science and Arts, Najran University, P.0. Box-1988, Najran 11001, Saudi Arabia 2. Center of Excel ence for Advanced Materials Research CEAMR&Chemistry Department, King Abdulaziz University, P.0. Box 80203, Jeddah 21589, Saudi Arabia |