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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b00870
|2 doi
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|a pubmed24n0865.xml
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|a (DE-627)NLM259773891
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|a (NLM)27118296
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Huder, Loïc
|e verfasserin
|4 aut
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|a Evidence for Charge Transfer at the Interface between Hybrid Phosphomolybdate and Epitaxial Graphene
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 18.05.2018
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|a Date Revised 18.05.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The interfacing of polyoxometalates and graphene can be considered to be an innovative way to generate hybrid structures that take advantage of the properties of both components. Polyoxometalates are redox-sensitive and photosensitive compounds with high temperature stability (up to 400 °C for some), showing tunable properties depending on the metal incorporated inside the complex. Graphene has a unique electronic band structure combined with good material properties for electrical and optical applications. The spontaneous, rather than electrochemical, functionalization of epitaxial graphene on SiC with Keggin phosphomolybdate derivative TBA3[PMo11O39{Sn(C6H4)C≡C(C6H4)N2}] (named K(Mo)Sn[N2(+)]) bearing a phenyl diazonium unit is investigated. Graphene decoration is evidenced by means of AFM, Raman, XPS, and cyclic voltammetry, indicating a successful immobilization of the polyoxomolybdate. The covalent bonding of the polyoxometalate to the graphene substrate can be deduced from the appearance of a D band in the Raman spectra and from the loss of mobility in the electrical conduction. High-resolution XPS spectra reveal an electron transfer from the graphene to the Mo complex. The comparison of charge-carrier density measurements before and after grafting supports the p-type doping effect, which is further evidenced by work function UPS measurements
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Rinfray, Corentin
|e verfasserin
|4 aut
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|a Rouchon, Denis
|e verfasserin
|4 aut
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|a Benayad, Anass
|e verfasserin
|4 aut
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|a Baraket, Mira
|e verfasserin
|4 aut
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|a Izzet, Guillaume
|e verfasserin
|4 aut
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|a Lipp-Bregolin, Felipe
|e verfasserin
|4 aut
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|a Lapertot, Gérard
|e verfasserin
|4 aut
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|a Dubois, Lionel
|e verfasserin
|4 aut
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| 700 |
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|a Proust, Anna
|e verfasserin
|4 aut
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|a Jansen, Louis
|e verfasserin
|4 aut
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|a Duclairoir, Florence
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 19 vom: 17. Mai, Seite 4774-83
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:32
|g year:2016
|g number:19
|g day:17
|g month:05
|g pages:4774-83
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|u http://dx.doi.org/10.1021/acs.langmuir.6b00870
|3 Volltext
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