Journal
NANO LETTERS
Volume 11, Issue 11, Pages 4562-4568Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl2016625
Keywords
DWNTs; CdSe nanocrystals; charged quantum dots; trion; charge transfer; resonance energy transfer
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Funding
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]
- U.S. Department of Energy Office of Basic Energy Sciences, Division of Materials Sciences and Engineering
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We report unidirectional charge transfer in multidimensional nanohybrids, consisting of a quantum dot, an electronically active molecular linker, and a carbon nanotube. After covalent attachment to the nanotube, only emission consistent with the negatively charged quantum dot exciton ion rather than the neutral exciton is observed, showing nearly monoexponential recombination kinetics and an average lifetime of 3.5 ns. Using kinetic models, we explain how charge transfer is biased at the expense of other decay pathways.
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