Face-Centered-Cubic Artificial Opal Embedded with CdS Quantum
Dots

Chin. Phys. Lett.

2002, Vol. 19

Issue (9): 1377-1379 DOI:

Original Articles

Face-Centered-Cubic Artificial Opal Embedded with CdS Quantum Dots

XU Ling;LI Ming-Hai;ZHANG Yu;MA Yi;XU Jun;HUANG Xin-Fan;CHEN Kun-Ji

National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093

Cite this article:

XU Ling, LI Ming-Hai, ZHANG Yu et al 2002 Chin. Phys. Lett. 19 1377-1379

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Abstract Highly monodispersed colloidal silica spheres in sub-micrometer size with distribution standard deviation less than 5% were synthesized by a chemical method. Using the self-crystallization of the silica spheres, we successfully obtained the three-dimensional close-packed fcc silica matrices and artificial opals. Then, a colloidal photonic crystal embedded with CdS quantum dots (QDs) was also chemically prepared by using artificial opals as a template. A reflection spectra study reveals that both artificial opals with and without CdS QDs possess (111) directional photonic bandgap features.

Keywords: 81.16.Dn 68.65.Hb 42.70.Qs

Published: 01 September 2002

PACS:	81.16.Dn	(Self-assembly)
	68.65.Hb	(Quantum dots (patterned in quantum wells))
	42.70.Qs	(Photonic bandgap materials)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2002/V19/I9/01377

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	XU Ling
	LI Ming-Hai
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	HUANG Xin-Fan
	CHEN Kun-Ji

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