Optical properties of porous nano-composites of zinc (hydr)oxide with graphite oxide

S. M. Z. Islam; Taposh Gayen; Mykola Seredych; Teresa J. Bandosz; Robert Alfano

doi:10.1117/12.2008071

11 March 2013 Optical properties of porous nano-composites of zinc (hydr)oxide with graphite oxide

S. M. Z. Islam, Taposh Gayen, Mykola Seredych, Teresa J. Bandosz, Robert Alfano

Proceedings Volume 8621, Optical Components and Materials X; 86211T (2013) https://doi.org/10.1117/12.2008071
Event: SPIE OPTO, 2013, San Francisco, California, United States

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.

Citation Download Citation

S. M. Z. Islam, Taposh Gayen, Mykola Seredych, Teresa J. Bandosz, and Robert Alfano "Optical properties of porous nano-composites of zinc (hydr)oxide with graphite oxide", Proc. SPIE 8621, Optical Components and Materials X, 86211T (11 March 2013); https://doi.org/10.1117/12.2008071

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