Synthesis and Magnetic Characterization of Bismuth Doped ZnO Nanowires. Dieser Artikel ist nicht verfügbar.Synthesis and Magnetic Characterization of Bismuth Doped ZnO Nanowires

Room-temperature ferromagnetism in the large and direct bandgap diluted magnetic semiconductor zinc oxide (ZnO) is attributed to the intrinsic defects and p-orbital–p-orbital (p–p) coupling interaction. However, due to oxidation, the ferromagnetism induced by defects is unstable. In the present work, the solution process synthesis route was utilized to grow pristine and bismuth-doped, highly crystalline ZnO nanowire (ZnO NW)-based samples. The magnetization (M-H) curve of all samples shown ferromagnetic behavior at room temperature. The saturation magnetization for Bi-doped ones is ±0.25 emu/g and for undoped it is ±2.0 emu/g so, almost a 10 times larger magnetization. Laser Induced Breakdown Spectroscopy (LIBS) spectra confirmed the presence of dopant elements in the ZnO. X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) shown pronounced 002 peak along c-axis, having hexagonal top face, respectively. The XRD peak broadening was used to estimates stress and it came out to be 2.51x10-2 for pristine ZnO & 5.80x10-2 for Bi-doped ZnO NWs. UV-Vis shown the change in the bandgap of ZnO NWs after doping.

Jamal Kazmi did his B.Sc., M.Sc. and M.Phil from UAJK, Pakistan from 2013-2018. Currently, he is pursuing PhD at National University of Malaysia. His research is focused on Si-based semiconductor thin film deposition & applications. He is currently working on heavy ion doped ZnO-based 1D materials & their applications in non-volatile memory devices