Synthesis and characterization of Sb-doped ZnO microspheres by pulsed laser ablation

Fumiaki Nagasaki, Tetsuya Shimogaki, Toshinobu Tanaka, Tatsuya Ikebuchi, Takeshi Ueyama, Yuki Fujiwara, Mitsuhiro Higashihata, Daisuke Nakamura, Tatsuo Okada

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4 Citations (Scopus)

Abstract

We succeeded in synthesizing antimony (Sb)-doped zinc oxide (ZnO) microspheres by ablating a sintered ZnO target containing Sb in air. The structural properties of the microspheres were investigated by Raman scattering studies. The Zn-Sb related local vibrational mode (LVM) was detected around 238 cm%1. Room-temperature photoluminescence (PL) properties of the microspheres were investigated under cw and pulsed laser excitations, and ultraviolet (UV) emission and whispering-gallery-mode (WGM) lasing were observed from the microspheres. Furthermore, a p-n heterojunction was formed between a single Sb-doped ZnO microsphere and an n-Al-doped ZnO thin film, and a good rectifying property with a turn-on voltage of approximately 1.8V was observed in the current-voltage (I-V) characteristics across the junction.

Original languageEnglish
Article number08RE07
JournalJapanese Journal of Applied Physics
Volume55
Issue number8
DOIs
Publication statusPublished - Aug 1 2016

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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