Metal–Semiconductor Heteronanocrystals with Desired Configurations for Plasmonic Photocatalysis
Precise control over the topology of plasmonic metal–semiconductor heteronanostructures is essential for fully harnessing their plasmonic function and hence for designing innovative solar energy conversion platforms. Here, we present a rational synthesis strategy for the realization of plasmonic met...
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Veröffentlicht in: | Journal of the American Chemical Society 2016-12, Vol.138 (48), p.15766-15773 |
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creator | Hong, Jong Wook Wi, Dae Han Lee, Su-Un Han, Sang Woo |
description | Precise control over the topology of plasmonic metal–semiconductor heteronanostructures is essential for fully harnessing their plasmonic function and hence for designing innovative solar energy conversion platforms. Here, we present a rational synthesis strategy for the realization of plasmonic metal–semiconductor heteronanocrystals with intended configurations through the site-selective overgrowth of semiconductor Cu2O on desired sites of anisotropic Au nanocrystals. Both the exploitation of structural characteristics of Au nanocrystals and the selective stabilization of their surfaces are keys to the construction of heteronanocrystals with a specific configuration. Our approach can provide an opportunity to precisely explore the link between the solar energy conversion efficiency and the structure of heteronanocrystals as well as to obtain important insights into the underpinning mechanism. Heteronanocrystals produced by Cu2O overgrowth preferentially on the multiple high-curvature sites of Au nanocrystals exhibited prominent photocatalytic hydrogen production activity due to efficient charge separation by strong plasmon excitation at the Au–Cu2O interface and subsequent sustainable hot electron transfer from Au to Cu2O. |
doi_str_mv | 10.1021/jacs.6b10288 |
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Here, we present a rational synthesis strategy for the realization of plasmonic metal–semiconductor heteronanocrystals with intended configurations through the site-selective overgrowth of semiconductor Cu2O on desired sites of anisotropic Au nanocrystals. Both the exploitation of structural characteristics of Au nanocrystals and the selective stabilization of their surfaces are keys to the construction of heteronanocrystals with a specific configuration. Our approach can provide an opportunity to precisely explore the link between the solar energy conversion efficiency and the structure of heteronanocrystals as well as to obtain important insights into the underpinning mechanism. Heteronanocrystals produced by Cu2O overgrowth preferentially on the multiple high-curvature sites of Au nanocrystals exhibited prominent photocatalytic hydrogen production activity due to efficient charge separation by strong plasmon excitation at the Au–Cu2O interface and subsequent sustainable hot electron transfer from Au to Cu2O.</description><identifier>ISSN: 0002-7863</identifier><identifier>EISSN: 1520-5126</identifier><identifier>DOI: 10.1021/jacs.6b10288</identifier><identifier>PMID: 27933998</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>Journal of the American Chemical Society, 2016-12, Vol.138 (48), p.15766-15773</ispartof><rights>Copyright © 2016 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a365t-7be6b5eb699997030fbc026534269efb9531e1b40c08bbaf97ac775983dbb14c3</citedby><cites>FETCH-LOGICAL-a365t-7be6b5eb699997030fbc026534269efb9531e1b40c08bbaf97ac775983dbb14c3</cites><orcidid>0000-0001-5406-5211</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/jacs.6b10288$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/jacs.6b10288$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27933998$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hong, Jong Wook</creatorcontrib><creatorcontrib>Wi, Dae Han</creatorcontrib><creatorcontrib>Lee, Su-Un</creatorcontrib><creatorcontrib>Han, Sang Woo</creatorcontrib><title>Metal–Semiconductor Heteronanocrystals with Desired Configurations for Plasmonic Photocatalysis</title><title>Journal of the American Chemical Society</title><addtitle>J. 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title | Metal–Semiconductor Heteronanocrystals with Desired Configurations for Plasmonic Photocatalysis |
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