Journal
NANO LETTERS
Volume 13, Issue 11, Pages 5255-5263Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl402730m
Keywords
Nanoheterostructure; CdS nanorods; Au nanoparticles; exciton dissociation; surface plasmon resonance; plasmon decay; hot electron transfer
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Funding
- U.S. Department of Energy, Office of Basic Energy Sciences, Solar Photochemistry Program [DE-FG02-12ER16347]
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The plasmon-exciton interaction mechanisms in CdS-Au colloidal quantum-confined plexcitonic nanorod heterostructures have been studied by transient absorption spectroscopy. Optical excitation of plasmons in the Au tip leads to hot electron injection into the CdS rod with a quantum yield of similar to 2.75%. This finding suggests the possibility of further optimization of plasmon-induced hot electron injection efficiency through controlling the size and shape of the plasmonic and excitonic domains for potential light harvesting applications.
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