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Title: Structural and optical characterization of InAs nanocrystals deposited by spray pyrolysis

4-5 nm size InAs nanocrystals were prepared by spray pyrolysis technique on glass substrates from alkaline solution containing InCl{sub 3} and As{sub 2}O. X-Ray diffraction and absorption spectra suggested that the deposition conditions (deposition time and temperature) had a profound influence on the structure and thickness of deposited layers. The optical absorption band edges shifted to lower energy when increasing the thickness with respect to the bulk material. The marked blue shift of the optical absorption edge indicated a strong quantum confinement effect in InAs films.
Authors:
; ;  [1]
  1. Department of Applied Sciences, University of Technology / Baghdad – Iraq (Iraq)
Publication Date:
OSTI Identifier:
22391322
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1653; Journal Issue: 1; Conference: APMAS 2014: 4. International Congress in Advances in Applied Physics and Materials Science, Fethiye (Turkey), 24-27 Apr 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION SPECTRA; CONFINEMENT; DEPOSITION; GLASS; INDIUM ARSENIDES; INDIUM CHLORIDES; NANOSTRUCTURES; PYROLYSIS; SPRAYS; SUBSTRATES; TEMPERATURE DEPENDENCE; THIN FILMS; X-RAY DIFFRACTION