Surface morphology dependent photoluminescence from colloidal silicon nanocrystals

Warner, JH, Rubinsztein-Dunlop, H and Tilley, RD (2005) Surface morphology dependent photoluminescence from colloidal silicon nanocrystals. Journal of Physical Chemistry B, 109 41: 19064-19067. doi:10.1021/jp054565z

Author Warner, JH
Rubinsztein-Dunlop, H
Tilley, RD
Title Surface morphology dependent photoluminescence from colloidal silicon nanocrystals
Journal name Journal of Physical Chemistry B   Check publisher's open access policy
ISSN 1520-6106
Publication date 2005-01-01
Sub-type Article (original research)
DOI 10.1021/jp054565z
Volume 109
Issue 41
Start page 19064
End page 19067
Total pages 4
Editor George C Schatz
Place of publication United States
Publisher American Chemical Society
Language eng
Subject C1
780102 Physical sciences
240202 Condensed Matter Physics - Structural Properties
Abstract Monodisperse 1-2 nm silicon nanocrystals are synthesized in reverse micelles and have their surfaces capped with either allylamine or 1-heptene to produce either hydrophilic or hydrophobic silicon nanocrystals. Optical characterization (absorption, PL, and time-resolved PL) is performed on colloidal solutions with the two types of surface-capped silicon nanocrystals with identical size distributions. Direct evidence is obtained for the modification of the optical properties of silicon nanocrystals by the surface-capping molecule. The two different surface-capped silicon nanocrystals show remarkably different optical properties.
Keyword Chemistry, Physical
Quantum Dots
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 16:50:52 EST