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Proceedings Paper

Optical properties of porous nano-composites of zinc (hydr)oxide with graphite oxide
Author(s): S. M. Z. Islam; Taposh Gayen; Mykola Seredych; Teresa J. Bandosz; Robert Alfano
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Paper Abstract

The optical properties of zinc (hydr)oxide and the composites of zinc (hydr)oxide with 2% and 5% graphite oxide were investigated by three spectroscopic techniques: absorption, fluorescence and photocurrent techniques. The obtained energy gaps (from 2.85 eV to 2.95 eV) of the composites were smaller than that for zinc oxide (~3.2 eV) and zinc (hydr)oxide (~3.00 eV). The band gap narrowing of the composite materials is due to presence of defects, less confinement, and larger particles. The bonds between zinc (hydr)oxide lattice and the carbon of graphene phase also contribute to this phenomenon.

Paper Details

Date Published: 11 March 2013
PDF: 6 pages
Proc. SPIE 8621, Optical Components and Materials X, 86211T (11 March 2013); doi: 10.1117/12.2008071
Show Author Affiliations
S. M. Z. Islam, The City College of New York (United States)
Taposh Gayen, The City College of New York (United States)
Mykola Seredych, The City College of New York (United States)
Teresa J. Bandosz, The City College of New York (United States)
Robert Alfano, The City College of New York (United States)

Published in SPIE Proceedings Vol. 8621:
Optical Components and Materials X
Michel J. F. Digonnet; Shibin Jiang; J. Christopher Dries, Editor(s)

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