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- Yeap, W. S., et al.
(author)
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Diamond functionalization with light-harvesting molecular wires : improved surface coverage by optimized Suzuki cross-coupling conditions
- 2014
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In: RSC Advances. - : Royal Society of Chemistry. - 2046-2069. ; 4:79, s. 42044-42053
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Journal article (peer-reviewed)abstract
- 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.
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