Ultraviolet laser action in ferromagnetic Zn1-xFexO nanoneedles.

Thumbnail
Author
Yang, H. Y.
Yu, S. F.
Lau, S. P.
Herng, T. S.
Tanemura, M.
Date of Issue
2009
School
School of Electrical and Electronic Engineering
Version
Published version
Abstract
Fe-doped ZnO nanoneedles (NDs) were fabricated by an Ar+ ion sputtering technique operated at room temperature. The as-grown samples show both ferromagnetic and lasing properties. The saturated magnetization moment was measured from 0.307 to 0.659 emu cm-3 at the field of 10 kOe with various Fe concentrations. Intense ultraviolet random lasing emission was observed from Zn1 - xFexO NDs at room temperature. The X-ray photoelectron spectroscopy result reveals that the doped Fe atoms occupy the Zn sites and lead to a decrease in oxygen deficiency.
Subject
DRNTU::Engineering::Electrical and electronic engineering
Type
Journal Article
Series/Journal Title
Nanoscale research letters
Rights
© 2009 The Author(s).
Collections
http://www.springerlink.com/content/r517745035734j01/
Get published version (via NTU subscribed resources)
http://dx.doi.org/10.1007/s11671-009-9473-9
Get published version (via Digital Object Identifier)