Emission characteristics of electrically- and optically-pumped single ZnO micro-spherical crystal

D. Nakamura, T. Shimogaki, N. Tetsuyama, K. Fusazaki, Y. Mizokami, M. Higashihata, H. Ikenoue, T. Okada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Zinc oxide (ZnO) nano/microstructures have been attractive as the building blocks for the efficient opto-electronic devices in the ultraviolet (UV) region. We have succeeded in growing the ZnO micro/nanosphere by a simple laser ablation in the air, and therefore we have obtained UV lasing from the sphere under optical pumping. Recently, large size of several 10 micrometer ZnO microspheres were grown using Nd:YAG laser without Q-switching, and ZnO microsphere/p-GaN heterojunction were fabricated to obtain the electroluminescence (EL) from the microsphere by electrical pumping. Room-temperature EL in near-UV region with peak wavelength of 400 nm is observed under forward bias.

Original languageEnglish
Title of host publicationOxide-Based Materials and Devices V
PublisherSPIE
ISBN (Print)9780819499004
DOIs
Publication statusPublished - Jan 1 2014
Event5th Annual Oxide Based Materials and Devices Conference - San Francisco, CA, United States
Duration: Feb 2 2014Feb 5 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8987
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other5th Annual Oxide Based Materials and Devices Conference
CountryUnited States
CitySan Francisco, CA
Period2/2/142/5/14

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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