Luminescence and FTIR Spectroscopy of ZnO Nanocrystals

Abstract:

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Time-resolved luminescence and Furje Transformation Infrared (FTIR) absorption spectroscopy for ZnO nanocrystals prepared under different chemical reactions using microwave driven hydrothermal process was studied. OH- group stretching vibration frequency is considerably different in nanocrystals studied and in single ZnO crystal. It is shown that fractions of chemicals used in synthesis process could be found in nanopowders. Luminescence at ~2.0 eV (due to defect states in ZnO crystals and nanopowders) was suppressed in nanopowders obtained by urea method.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

1230-1234

DOI:

10.4028/www.scientific.net/MSF.514-516.1230

Citation:

L. Grigorjeva et al., "Luminescence and FTIR Spectroscopy of ZnO Nanocrystals", Materials Science Forum, Vols. 514-516, pp. 1230-1234, 2006

Online since:

May 2006

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Price:

$35.00

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