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Diamond functionalization with light-harvesting molecular wires: improved surface coverage by optimized Suzuki cross-coupling conditions
Hasselt University, Belgium .
Hasselt University, Belgium; IMEC vzw, IMOMEC, Diepenbeek, Belgium.
Linköping University, Department of Physics, Chemistry and Biology, Surface Physics and Chemistry. Linköping University, The Institute of Technology.
J. Heyrovský Institute of Physical Chemistry, Prague, Czech Republic .
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2014 (English)In: RSC Advances, ISSN 2046-2069, Vol. 4, no 79, 42044-42053 p.Article in journal (Refereed) Published
Abstract [en]

Donor-acceptor type light-harvesting molecular wires are covalently attached to a boron-doped diamond surface via a combination of diazonium electrografting and Suzuki cross-coupling. For the Suzuki reaction, various catalytic systems are compared with respect to their imposed surface coverage. Combining 2-dicyclohexylphosphino-2,6-dimethoxybiphenyl (SPhos) and Pd(0), the diamond coverage improves considerably (by 98%) as compared to the standard tetrakis(triphenylphosphine)palladium(0) (Pd(PPh3)(4)) catalyst. As the energy levels between the molecular chromophores and the diamond film align well, the sophisticated functionalized diamond surfaces present a first step towards the development of fully carbon-based devices for light to electricity conversion.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2014. Vol. 4, no 79, 42044-42053 p.
National Category
Physical Sciences
URN: urn:nbn:se:liu:diva-111626DOI: 10.1039/c4ra04740kISI: 000342161600047OAI: diva2:758365

Funding Agencies|Special Research Fund of Hasselt University; Research Foundation Flanders (FWO) [G.0555.10N]; EU FP7 Collaborative Project "MOLESOL" [256617]; Swedish Research Council Linnaeus grant; Grant Agency of the Czech Republic [13-37383S]

Available from: 2014-10-27 Created: 2014-10-27 Last updated: 2014-11-25Bibliographically approved

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