Optical properties of highly faceted ZnO rods

A. B. Djurišić, Wai Ming Kwok, W. K. Chan, D. L. Phillips, Y. H. Leung, M. H. Xie, H. Y. Chen, C. L. Wu, S. Gwo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)


Highly faceted ZnO rods with 18 side surfaces were synthesized. Their optical properties were characterized by variable temperature photoluminescence, time-resolved photoluminescence, and time-integrated photoluminescence. Low-temperature photoluminescence is dominated by a narrow donor bound exciton peak, while at room temperature ultraviolet emission and green emission can be observed. In spite of the presence of the defect emission, the samples have excellent crystal quality based on the long lifetime of spontaneous emission, with the time constants of biexponential decay equal to 116ps and 1.2ns. With increasing pump fluence, stimulated emissions due to excitonic and electron-hole plasma effects were observed. The lasing dynamics in both emission regimes is discussed.
Original languageEnglish
Article number033517
JournalJournal of Applied Physics
Issue number3
Publication statusPublished - 1 Feb 2006
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Optical properties of highly faceted ZnO rods'. Together they form a unique fingerprint.

Cite this