Title

ZnO nanocones: Solvothermal synthesis and photoluminescence properties

Authors

Authors

T. Ghoshal; S. Kar; J. Ghatak;S. Chaudhuri

Comments

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Abbreviated Journal Title

Mater. Res. Bull.

Keywords

nanostructures; oxides; semiconductors; electron microscopy; luminescence; ZINC-OXIDE NANOSTRUCTURES; NANOROD ARRAYS; GROWTH; LUMINESCENCE; DEPOSITION; NANOWIRES; MECHANISM; NANOMETER; CRYSTALS; DEFECTS; Materials Science, Multidisciplinary

Abstract

Ellipsoidal and prism shaped ZnO nanocrystals with hexagonal cross-sections have been synthesized by a simple solvothermal process. The ellipsoidal ZnO nanocrystals possessed a unique hexagonal cross-section having two sharp pointed ends and a flattened central part. The well faceted prism like particles resembled hexagonal cones in their shape. Dimensions of the nanocrystals increased systematically with the increase in the synthesis temperature. The synthesized nanocrystals exhibited near band edge UV emission centered at similar to 400 nm. An additional defect related green emission band at similar to 500 nm was observed from the samples synthesized at higher temperatures. (c) 2007 Elsevier Ltd. All rights reserved.

Journal Title

Materials Research Bulletin

Volume

43

Issue/Number

8-9

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

2228

Last Page

2238

WOS Identifier

WOS:000257815100040

ISSN

0025-5408

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