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Bicontinuous Cubic Phase as a Matrix for the Synthesis of Semiconductor Nanocrystallites

Published online by Cambridge University Press:  10 February 2011

Jianping Yang ,
Syed Qadri  and
Banahalli Ratna
Jianping Yang
Affiliation:
Center for Bio/Molecular Science and Engineering Naval Research Laboratory, Washington, D.C. 20375
Syed Qadri
Affiliation:
Center for Bio/Molecular Science and Engineering Naval Research Laboratory, Washington, D.C. 20375
Banahalli Ratna
Affiliation:
Center for Bio/Molecular Science and Engineering Naval Research Laboratory, Washington, D.C. 20375
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Abstract

Bicontinuous cubic phase of lipid has been utilized for the first time as a matrix to synthesize II–VI (CdS) and IV–VI (PbS) semiconductor nanocrystallites. The nanoparticles were isolated from the lipid matrix and stabilized by capping with a thiol compound before purification. Two different sizes (2.3 nm and 3.0 nm) of CdS particles were prepared by varying the conditions of preparation. The size was determined by a combination of UV-vis absorption spectra and X-ray diffraction (XRD). The steep absorption edges of the two CdS samples indicate very narrow size distribution. XRD and transmission electron microscopic imaging of PbS nanocrystallites revealed that the size was 4.9 nm with nearly monodispersed size distribution.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 431: Symposium P – Microporous and Macroporous Materials , 1996 , 415
Copyright
Copyright © Materials Research Society 1996

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