Title

Smooth surface roughness of silanized CdSe(ZnS) quantum dots

Authors

Authors

J. M. Xu; C. S. Wang; J. H. Wang; Q. Huo; N. F. Crawford; E. A. Veliz;R. M. Leblanc

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Colloid Interface Sci.

Keywords

Quantum dots; Langmuir monolayer; Langmuir-Blodgett films; Sol-gel; process; AIR-WATER-INTERFACE; NANOCRYSTALLITES; LANGMUIR; Chemistry, Physical

Abstract

The interparticle distance of CdSe(ZnS) quantum dots was accurately controlled by polymerization at the air-water interface which provided an increased homogeneity of the Langmuir-Blodgett film leading to a surface smoothness comparable to mica. The choice of a silane derivative is based on the fact that silicon is semiconductor, and the compound CdSe being the core of the quantum dot is also semiconductor. The combination of the two semiconductors could bring some unusual conduction properties as a polymeric silanized network. But first, it is most important to characterize the smoothness of the surface, which might be correlated to the formation of "trap" states, i.e. the photo-excited electron can fall, or the photo-excited hole can "float". One will focus our research strategy, as a pilot study, to characterize the surface of the new polymeric material. (C) 2012 Elsevier Inc. All rights reserved.

Journal Title

Journal of Colloid and Interface Science

Volume

393

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

21

Last Page

28

WOS Identifier

WOS:000314666300002

ISSN

0021-9797

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