Ultrafast electron transfer in the nanocomposite of the graphene oxide–Au nanocluster with graphene oxide as a donor
Graphene oxide has been extensively investigated as an electron acceptor due to its exceptional electronic and optical properties. Here we report an unusual ultrafast electron transfer occurring in the nanocomposites of Au nanocluster (Au NC)–graphene oxide (GO) in which GO acts as an electron donor...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2014-01, Vol.2 (19), p.3826-3834 |
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| container_end_page | 3834 |
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| container_issue | 19 |
| container_start_page | 3826 |
| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
| container_volume | 2 |
| creator | Wen, Xiaoming Yu, Pyng Toh, Yon-Rui Lee, Yu-Chieh Huang, Kuo-Yen Huang, Shujuan Shrestha, Santosh Conibeer, Gavin Tang, Jau |
| description | Graphene oxide has been extensively investigated as an electron acceptor due to its exceptional electronic and optical properties. Here we report an unusual ultrafast electron transfer occurring in the nanocomposites of Au nanocluster (Au NC)–graphene oxide (GO) in which GO acts as an electron donor. An ultrafast electron transfer is corroborated from the excited states of graphene oxide into the highest occupied molecular orbital (HOMO) of Au NCs. It is found that the electron transfer rate is significantly higher in Au
10
–GO nanocomposites (4.17 × 10
12
s
−1
) than that in Au
25
–GO (0.49 × 10
12
s
−1
) due to a larger energy difference and smaller sized ligands. This finding suggests that graphene oxide–Au nanocluster nanocomposites can be very useful to construct novel nanostructures with enhanced visible light photovoltaic, photonic and photo-catalytic activities. |
| doi_str_mv | 10.1039/C3TC32376E |
| format | Article |
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10
–GO nanocomposites (4.17 × 10
12
s
−1
) than that in Au
25
–GO (0.49 × 10
12
s
−1
) due to a larger energy difference and smaller sized ligands. This finding suggests that graphene oxide–Au nanocluster nanocomposites can be very useful to construct novel nanostructures with enhanced visible light photovoltaic, photonic and photo-catalytic activities.</description><identifier>ISSN: 2050-7526</identifier><identifier>EISSN: 2050-7534</identifier><identifier>DOI: 10.1039/C3TC32376E</identifier><language>eng</language><subject>Donors (electronic) ; Electron transfer ; Gold ; Graphene ; Ligands ; Molecular orbitals ; Nanostructure ; Oxides</subject><ispartof>Journal of materials chemistry. C, Materials for optical and electronic devices, 2014-01, Vol.2 (19), p.3826-3834</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c305t-c764e1b3709a4aa222a2d01bbfc6e009b4ed6ce8a70962c40a596771a48d04b93</citedby><cites>FETCH-LOGICAL-c305t-c764e1b3709a4aa222a2d01bbfc6e009b4ed6ce8a70962c40a596771a48d04b93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Wen, Xiaoming</creatorcontrib><creatorcontrib>Yu, Pyng</creatorcontrib><creatorcontrib>Toh, Yon-Rui</creatorcontrib><creatorcontrib>Lee, Yu-Chieh</creatorcontrib><creatorcontrib>Huang, Kuo-Yen</creatorcontrib><creatorcontrib>Huang, Shujuan</creatorcontrib><creatorcontrib>Shrestha, Santosh</creatorcontrib><creatorcontrib>Conibeer, Gavin</creatorcontrib><creatorcontrib>Tang, Jau</creatorcontrib><title>Ultrafast electron transfer in the nanocomposite of the graphene oxide–Au nanocluster with graphene oxide as a donor</title><title>Journal of materials chemistry. C, Materials for optical and electronic devices</title><description>Graphene oxide has been extensively investigated as an electron acceptor due to its exceptional electronic and optical properties. Here we report an unusual ultrafast electron transfer occurring in the nanocomposites of Au nanocluster (Au NC)–graphene oxide (GO) in which GO acts as an electron donor. An ultrafast electron transfer is corroborated from the excited states of graphene oxide into the highest occupied molecular orbital (HOMO) of Au NCs. It is found that the electron transfer rate is significantly higher in Au
10
–GO nanocomposites (4.17 × 10
12
s
−1
) than that in Au
25
–GO (0.49 × 10
12
s
−1
) due to a larger energy difference and smaller sized ligands. This finding suggests that graphene oxide–Au nanocluster nanocomposites can be very useful to construct novel nanostructures with enhanced visible light photovoltaic, photonic and photo-catalytic activities.</description><subject>Donors (electronic)</subject><subject>Electron transfer</subject><subject>Gold</subject><subject>Graphene</subject><subject>Ligands</subject><subject>Molecular orbitals</subject><subject>Nanostructure</subject><subject>Oxides</subject><issn>2050-7526</issn><issn>2050-7534</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpdkMtOwzAQRS0EElXphi_wEiEF_IoTL6uoPKRKbNp1NHEmNCiNg-3y2PEP_CFfQqAIJGYzd67O3MUl5JSzC86kuSzkqpBCZnpxQCaCpSzJUqkOf7XQx2QWwgMbJ-c612ZCntZd9NBAiBQ7tNG7no5GHxr0tB31BmkPvbNuO7jQRqSu-TbvPQwb7Mf7pa3x4-19vtuD3S7E8fe5jZt_EIVAgdaud_6EHDXQBZz97ClZXy1WxU2yvLu-LebLxEqWxsRmWiGvZMYMKAAhBIia8apqrEbGTKWw1hZzGAEtrGKQGp1lHFReM1UZOSVn-9zBu8cdhlhu22Cx66BHtwslTxVXzBglRvR8j1rvQvDYlINvt-BfS87Kr37Lv37lJ-Knb5U</recordid><startdate>20140101</startdate><enddate>20140101</enddate><creator>Wen, Xiaoming</creator><creator>Yu, Pyng</creator><creator>Toh, Yon-Rui</creator><creator>Lee, Yu-Chieh</creator><creator>Huang, Kuo-Yen</creator><creator>Huang, Shujuan</creator><creator>Shrestha, Santosh</creator><creator>Conibeer, Gavin</creator><creator>Tang, Jau</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20140101</creationdate><title>Ultrafast electron transfer in the nanocomposite of the graphene oxide–Au nanocluster with graphene oxide as a donor</title><author>Wen, Xiaoming ; Yu, Pyng ; Toh, Yon-Rui ; Lee, Yu-Chieh ; Huang, Kuo-Yen ; Huang, Shujuan ; Shrestha, Santosh ; Conibeer, Gavin ; Tang, Jau</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c305t-c764e1b3709a4aa222a2d01bbfc6e009b4ed6ce8a70962c40a596771a48d04b93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Donors (electronic)</topic><topic>Electron transfer</topic><topic>Gold</topic><topic>Graphene</topic><topic>Ligands</topic><topic>Molecular orbitals</topic><topic>Nanostructure</topic><topic>Oxides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wen, Xiaoming</creatorcontrib><creatorcontrib>Yu, Pyng</creatorcontrib><creatorcontrib>Toh, Yon-Rui</creatorcontrib><creatorcontrib>Lee, Yu-Chieh</creatorcontrib><creatorcontrib>Huang, Kuo-Yen</creatorcontrib><creatorcontrib>Huang, Shujuan</creatorcontrib><creatorcontrib>Shrestha, Santosh</creatorcontrib><creatorcontrib>Conibeer, Gavin</creatorcontrib><creatorcontrib>Tang, Jau</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wen, Xiaoming</au><au>Yu, Pyng</au><au>Toh, Yon-Rui</au><au>Lee, Yu-Chieh</au><au>Huang, Kuo-Yen</au><au>Huang, Shujuan</au><au>Shrestha, Santosh</au><au>Conibeer, Gavin</au><au>Tang, Jau</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ultrafast electron transfer in the nanocomposite of the graphene oxide–Au nanocluster with graphene oxide as a donor</atitle><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle><date>2014-01-01</date><risdate>2014</risdate><volume>2</volume><issue>19</issue><spage>3826</spage><epage>3834</epage><pages>3826-3834</pages><issn>2050-7526</issn><eissn>2050-7534</eissn><abstract>Graphene oxide has been extensively investigated as an electron acceptor due to its exceptional electronic and optical properties. Here we report an unusual ultrafast electron transfer occurring in the nanocomposites of Au nanocluster (Au NC)–graphene oxide (GO) in which GO acts as an electron donor. An ultrafast electron transfer is corroborated from the excited states of graphene oxide into the highest occupied molecular orbital (HOMO) of Au NCs. It is found that the electron transfer rate is significantly higher in Au
10
–GO nanocomposites (4.17 × 10
12
s
−1
) than that in Au
25
–GO (0.49 × 10
12
s
−1
) due to a larger energy difference and smaller sized ligands. This finding suggests that graphene oxide–Au nanocluster nanocomposites can be very useful to construct novel nanostructures with enhanced visible light photovoltaic, photonic and photo-catalytic activities.</abstract><doi>10.1039/C3TC32376E</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2050-7526 |
| ispartof | Journal of materials chemistry. C, Materials for optical and electronic devices, 2014-01, Vol.2 (19), p.3826-3834 |
| issn | 2050-7526 2050-7534 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1541409942 |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Donors (electronic) Electron transfer Gold Graphene Ligands Molecular orbitals Nanostructure Oxides |
| title | Ultrafast electron transfer in the nanocomposite of the graphene oxide–Au nanocluster with graphene oxide as a donor |
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