Diamond functionalization with light-harvesting molecular wires: improved surface coverage by optimized Suzuki cross-coupling conditions
2014 (English)In: RSC Advances, ISSN 2046-2069, Vol. 4, no 79, 42044-42053 p.Article in journal (Refereed) Published
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.
IdentifiersURN: urn:nbn:se:liu:diva-111626DOI: 10.1039/c4ra04740kISI: 000342161600047OAI: oai:DiVA.org:liu-111626DiVA: diva2:758365
Funding Agencies|Special Research Fund of Hasselt University; Research Foundation Flanders (FWO) [G.0555.10N]; EU FP7 Collaborative Project "MOLESOL" ; Swedish Research Council Linnaeus grant; Grant Agency of the Czech Republic [13-37383S]2014-10-272014-10-272014-11-25Bibliographically approved