Affiliation: | 1. Central Metallurgical Research & Development Institute (CMRDI), Electronic and Magnetic Materials Division, Advanced Materials Department, P.O. Box 87 Helwan, Cairo 11421, Egypt;2. Centre de Investigacio en Nanociencia I Nanotecnologia (Cin2, CSIC), ETSE, Campus UAB, Edifici Q, 2nd Floor, Bellaterra Barcelona E-08193, Spain;3. Nano-Photochemistry and Solar chemistry Lab, Department of Chemistry, Faculty of Science, Ain Shams University, 11566 Abbassia, Cairo, Egypt |