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Near-Ideal Photodiodes from Sintered Gold Nanoparticle Films on Methyl-Terminated Si(111) Surfaces

Maldonado, Stephen and Knapp, David and Lewis, Nathan S. (2008) Near-Ideal Photodiodes from Sintered Gold Nanoparticle Films on Methyl-Terminated Si(111) Surfaces. Journal of the American Chemical Society, 130 (11). pp. 3300-3301. ISSN 0002-7863. doi:10.1021/ja800603v. https://resolver.caltech.edu/CaltechAUTHORS:20170516-110757358

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Abstract

We report photocurrent-voltage data for improved n-Si/metal devices using CH_3-terminated n-Si(111) and Au nanoparticles (NPs). CH_3-terminated Si(111) surfaces maintain good electronic properties throughout device assembly, while the use of Au NPs as precursors to metal films circumvents the standard issues associated with interfacial reactivity of metals in Schottky barrier formation. Such devices demonstrate excellent photovoltaic properties, with photovoltages that approach the maximum values predicted for photodiodes that are limited by Si bulk diffusion/recombination processes rather than interfacial processes. These devices are compared to standard n-Si/Au devices made via thermally evaporated Au films which are well-known to be limited by junction-based recombination.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/ja800603vDOIArticle
http://pubs.acs.org/doi/abs/10.1021/ja800603vPublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/ja800603vPublisherSupporting Information
ORCID:
AuthorORCID
Maldonado, Stephen0000-0002-2917-4851
Lewis, Nathan S.0000-0001-5245-0538
Additional Information:© 2008 American Chemical Society. Received January 24, 2008. Publication Date (Web): February 27, 2008. We gratefully acknowledge the National Science Foundation, grant No. CHE-0604894, for support of this work. S.M. also acknowledges financial support from the Ford Foundation, through the National Academies of Sciences.
Funders:
Funding AgencyGrant Number
NSFCHE-0604894
Ford FoundationUNSPECIFIED
National Academies of SciencesUNSPECIFIED
Issue or Number:11
DOI:10.1021/ja800603v
Record Number:CaltechAUTHORS:20170516-110757358
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170516-110757358
Official Citation:Near-Ideal Photodiodes from Sintered Gold Nanoparticle Films on Methyl-Terminated Si(111) Surfaces Stephen Maldonado, David Knapp, and Nathan S. Lewis Journal of the American Chemical Society 2008 130 (11), 3300-3301 DOI: 10.1021/ja800603v
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:77498
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 May 2017 18:46
Last Modified:15 Nov 2021 17:31

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