Electronic structures of well-aligned Er-doped ZnO nanorod arrays

Cheng Ying Chen, Kun Yu Lai, Jian Wei Lo, Chin An Lin, Shu Hsien Chiu, Yen Chun Chao, Jr-Hau He*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Electronic structures of well-aligned Er-doped ZnO (ZnO:Er) nanorod arrays (NRAs) synthesized by a solution-based hydrothermal process were characterized by high-resolution transmission electron microscopy (HRTEM) and X-ray absorption fine structure (XAFS). HRTEM and angular dependent X-ray absorption near-edge structure analysis at O K and Zn L 3 edges indicates that the spontaneous polarization is along the [0001] direction. The analysis of Er L 3-edge XAFS demonstrates that the local structure around Er in the ZnO:Er NRAs was transformed from O n to C 4v after annealing

Original languageEnglish (US)
Pages (from-to)10615-10619
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number12
DOIs
StatePublished - Dec 1 2011

Keywords

  • Er-doped ZnO
  • Infrared emission
  • Nanorod arrays
  • Optical activation
  • XAFS
  • XANES

ASJC Scopus subject areas

  • Medicine(all)

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