Carbon nanoparticles as chromophores for photon harvesting and photoconversion.

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Chemphyschem : a European journal of chemical physics and physical chemistry, ISSN: 1439-7641, Vol: 12, Issue: 18, Page: 3604-8

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Xu, Juan; Sahu, Sushant; Cao, Li; Anilkumar, Parambath; Tackett, Kenneth N., II; Qian, Haijun; Bunker, Christopher E.; Guliants, Elena A.; Parenzan, Alexander; Sun, Ya-Ping
Wiley; Wiley-VCH Verlag; eCommons
Physics and Astronomy; Chemistry; Computer Engineering; Electrical and Computer Engineering; Electrical and Electronics; Electromagnetics and Photonics; Optics; Other Electrical and Computer Engineering; Systems and Communications
article description
Carbon nanomaterials have generated a tremendous amount of attention in the scientific community. While most of the research and development efforts have been on fullerenes, carbon nanotubes, and graphene sheets, carbon nanoparticles (which are often considered as impurities or unwanted complications in the other carbon nanomaterials) have recently emerged as a unique class of highly fluorescent nano-dots. However, little or no attention has been paid to potential uses of carbon nanoparticles as chromophores in photochemical reactions or for photon harvesting and photoconversion in general. In the study reported herein we demonstrate the chromophore-equivalent functions of aqueous-suspended small carbon nanoparticles in harvesting visible photons for the reductive coating of the nanoparticles with silver and gold and, as a result, the preparation of unique carbon-noble-metal core-shell nanostructures.