20 February 2017 Optical and magnetic characterization of transition metal ion doped ZnO microspheres synthesized via laser ablation in air
Author Affiliations +
Abstract
We report the synthesis of transition metal doped (TM) ZnO micropsheres using doped ZnO sintered targets containing Mn 1% dopant. Transition metals are prospective materials for p type acceptor doping in ZnO. Structural and morphology study were conducted using XRD (X-ray diffraction), SEM and Raman spectroscopy. Room temperature Photoluminescence (PL) spectra of the fabricated ZnO microspheres were measured, at an excitation wavelength of 355 nm. In our study, smooth spherical shaped micro particles with different diameters ranging from ~1 to 3 μm were grown in different substrates by using a pulsed N 3+: YAG laser. SEM (Scanning Electron Microscopy) images show the presence of uniform smooth surfaced spheres. Raman scattering measurements from the synthesised samples at 532 nm wavelength excitation provide confirms the wurtzite structure of the fabricated undoped and TM doped ZnO microsphere. The doped microspheres exhibited UV whispering gallery modes (WGM) cavity lasing by optical pumping. Magnetic measurements from TM doped ZnO microparticles using vibrating sample magnetometer (VSM) are in progress.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Parvathy Anitha Sukkurji, Parvathy Anitha Sukkurji, Yuki Fujiwara, Yuki Fujiwara, Nilesh Jayantilal Vasa, Nilesh Jayantilal Vasa, M. S. Ramachandra Rao, M. S. Ramachandra Rao, Mitsuhiro Higashihata, Mitsuhiro Higashihata, Daisuke Nakamura, Daisuke Nakamura, } "Optical and magnetic characterization of transition metal ion doped ZnO microspheres synthesized via laser ablation in air", Proc. SPIE 10090, Laser Resonators, Microresonators, and Beam Control XIX, 100901X (20 February 2017); doi: 10.1117/12.2253560; https://doi.org/10.1117/12.2253560
PROCEEDINGS
10 PAGES


SHARE
Back to Top