Optical and magnetic characterization of transition metal ion doped ZnO microspheres synthesized via laser ablation in air

Parvathy Anitha Sukkurji, Yuki Fujiwara, Nilesh Jayantilal Vasa, M. S.Ramachandra Rao, Mitsuhiro Higashihata, Daisuke Nakamura

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

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.

本文言語英語
ホスト出版物のタイトルLaser Resonators, Microresonators, and Beam Control XIX 2017
編集者Alan H. Paxton, Vladimir S. Ilchenko, Alexis V. Kudryashov
出版社SPIE
ISBN(電子版)9781510606210
DOI
出版ステータス出版済み - 2017
イベントLaser Resonators, Microresonators, and Beam Control XIX 2017 - San Francisco, 米国
継続期間: 1 30 20172 2 2017

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
10090
ISSN(印刷版)0277-786X
ISSN(電子版)1996-756X

その他

その他Laser Resonators, Microresonators, and Beam Control XIX 2017
国/地域米国
CitySan Francisco
Period1/30/172/2/17

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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