Ultraviolet excitonic laser action at room temperature in ZnO nanocrystalline epitaxial films

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	Ultraviolet excitonic laser action at room temperature in ZnO nanocrystalline epitaxial films
	Kawasaki M.1; Ohtomo A.1; Koinuma H.1; Sakurai Y.4; Yoshida Y.4; Tang Z.K.5 ; Yu P.5; Wang G.K.L.5; Segawa Y.2
	1998-12-01
Source Publication	Materials Science Forum
ISSN	02555476
Volume	264-268 Issue:PART 2 Pages:1459-1462
Abstract	We have observed ultraviolet laser emission at 3.2eV from optically pumped ZnO nanocrystal thin films at room temperature. ZnO films were epitaxially grown on sapphire substrates by laser molecular beam epitaxy. Closely packed and hexagonally shaped nanocrystals and well-defined grain boundaries were naturally formed. The grain boundaries between nanocrystals serve not only as barriers for confinement of excitons, but also as mirrors to form a Fabry-Perot cavity.
Keyword	Excitonic Laser Emission Natural Cavity ZnO Nanocrystal
URL	View the original
Language	英語English
Fulltext Access	View Full-Text via Scopus
Document Type	Journal article
Collection	University of Macau
Affiliation	1.Tokyo Institute of Technology 2.RIKEN (The Institute of Physical and Chemical Research) 3.Japan Science and Technology Agency 4.Toyo University 5.Hong Kong University of Science and Technology
Recommended Citation GB/T 7714	Kawasaki M.,Ohtomo A.,Koinuma H.,et al. Ultraviolet excitonic laser action at room temperature in ZnO nanocrystalline epitaxial films[J]. Materials Science Forum, 1998, 264-268(PART 2), 1459-1462.
APA	Kawasaki M.., Ohtomo A.., Koinuma H.., Sakurai Y.., Yoshida Y.., Tang Z.K.., Yu P.., Wang G.K.L.., & Segawa Y. (1998). Ultraviolet excitonic laser action at room temperature in ZnO nanocrystalline epitaxial films. Materials Science Forum, 264-268(PART 2), 1459-1462.
MLA	Kawasaki M.,et al."Ultraviolet excitonic laser action at room temperature in ZnO nanocrystalline epitaxial films".Materials Science Forum 264-268.PART 2(1998):1459-1462.

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