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Photoluminescence spectroscopy and lifetime measurements from self-assembled semiconductor-metal nanoparticle hybrid arrays

Haridas, M and Basu, JK and Gosztola, DJ and Wiederrecht, GP (2010) Photoluminescence spectroscopy and lifetime measurements from self-assembled semiconductor-metal nanoparticle hybrid arrays. In: Applied Physics Letters, 97 (8).

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Abstract

We present results of photoluminescence spectroscopy and lifetime measurements on thin film hybrid arrays of semiconductor quantum dots and metal nanoparticles embedded in a block copolymer template. The intensity of emission as well as the measured lifetime would be controlled by varying the volume fraction and location of gold nanoparticles in the matrix. We demonstrate the ability to both enhance and quench the luminescence in the hybrids as compared to the quantum dot array films while simultaneously engineering large reduction in luminescence lifetime with incorporation of gold nanoparticles. (C) 2010 American Institute of Physics. [doi:10.1063/1.3483162].

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Institute of Physics.
Keywords: Cadmium compounds;gold;II-VI semiconductors; nanoparticles; photoluminescence;polymer blends;self-ssembly;semiconductor quantum dots; thin films; wide band gap semiconductors.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 16 Sep 2010 06:28
Last Modified: 19 Sep 2010 06:16
URI: http://eprints.iisc.ernet.in/id/eprint/32158

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