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Fabricate Photonic Crystals Based on ZnS/opal System via Solvothermal Method

Published online by Cambridge University Press:  15 March 2011

Jieming Cao ,
Xin Chang ,
Lijia Pan ,
Hongmei Ji ,
Jinsong Liu ,
Jie Feng ,
Fang Zhang ,
Haiyan Wang ,
Jie Tao  and
Guoyue Xu
Jieming Cao
Affiliation:
Research Institute of Nanomaterials, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
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Abstract

We made photonic crystals composed of artificial opals infiltrated with ZnS semiconductor nanocrystals by using self-assembly and solvothermal methods. Scanning electron microscopy images show that the silica spheres exhibit a well-ordered arrangement and the ZnS nanocrystals grow homogenously inside the opal matrix and the as-synthesized ZnS nanocrystals reveal a cubic phase from X-ray diffraction pattern. Furthermore, the optical properties of the infiltrated opals with different ZnS filling ratio are also studied by transmission spectroscopy respectively. It is proposed that the position of the stop band can be easily designed by controlling the infiltration ratio of ZnS. These results demonstrate an effective and practical route to obtain high-performance photonic crystal structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 820: Symposia O/R – Nanoengineered Assemblies and Advanced Micro/Nanosystems , 2004 , R4.6
Copyright
Copyright © Materials Research Society 2004

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