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Combinatorial approaches toward patterning nanocrystals

Vossmeyer, T. and Jia, S. and Delonno, E. and Diehl, M. R. and Kim, S.-H. and Peng, X. and Alivisatos, A. P. and Heath, J. R. (1998) Combinatorial approaches toward patterning nanocrystals. Journal of Applied Physics, 84 (7). pp. 3664-3670. ISSN 0021-8979.

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A scheme for generating complex, spatially separated patterns of multiple types of semiconducting and/or metallic nanocrystals is presented. The process is based on lithographic patterning of organic monolayers that contain a photolabile protection group and are covalently bound to SiO2 surfaces. The process results in spatially and chemically distinct interaction sites on a single substrate. Nanocrystal assembly occurs with a high selectivity on just one type of site. We report on the production of binary, tertiary, and quatemary patterns of nanocrystals. We highlight and discuss the differences between nanocrystal/substrate assembly and molecule/substrate assembly. Finally, we investigate the assembled structures using photoluminescence and absorption spectroscopy.

Item Type:Article
Alivisatos, A. P.0000-0001-6895-9048
Heath, J. R.0000-0001-5356-4385
Additional Information:© 1998 American Institute of Physics. (Received 7 April 1998; accepted 7 July 1998) This work was part of a joint UCLA/UC Berkeley/Hewlett Packard effort supported by an NSF-GOALI Grant. One of the authors (J.R.H.) also acknowledges support from the David and Lucile Packard Foundation, and a Sloan Fellowship. One of the authors (T.L.V.) would like to thank the Deutsche Forschungsgemeinschaft (DFG) for partial support.
Funding AgencyGrant Number
David and Lucile Packard FoundationUNSPECIFIED
Alfred P. Sloan FoundationUNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Subject Keywords:nanotechnology; lithography
Record Number:CaltechAUTHORS:VOSjap98
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3285
Deposited By: Archive Administrator
Deposited On:25 May 2006
Last Modified:26 Sep 2017 21:52

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