“Synthesized Pure Cobalt Oxide Nanostructure and Doped With Yttrium by Hydrothermal Method for Photodetector Applications”. Iraqi Journal of Physics 17, no. 40 (March 1, 2019): 77–87. Accessed April 29, 2024. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/408.