Time-resolved energy transfer from single chloride-terminated nanocrystals to graphene

Journal Article · Mon Apr 28 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4874298· OSTI ID:22267733

Anderson, N. C.; Wolcott, A.; Owen, J. S. ^[1]; Cotlet, M. ^[2]; Petrone, N.; Hone, J. ^[3]; Gu, T.; Gesuele, F. ^[4]

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1. Department of Chemistry, Columbia University, New York, New York 10027 (United States)
2. Brookhaven National Laboratory, Upton, New York, New York 11973 (United States)
3. Department of Mechanical Engineering, Columbia University, New York, New York 10027 (United States)
4. Optical Nanostructures Laboratory, Center for Integrated Science and Engineering, Solid-State Science and Engineering, Columbia University, New York, New York 10027 (United States)

We examine the time-resolved resonance energy transfer of excitons from single n-butyl amine-bound, chloride-terminated nanocrystals to two-dimensional graphene through time-correlated single photon counting. The radiative biexponential lifetime kinetics and blinking statistics of the individual surface-modified nanocrystal elucidate the non-radiative decay channels. Blinking modification as well as a 4× reduction in spontaneous emission were observed with the short chloride and n-butylamine ligands, probing the energy transfer pathways for the development of graphene-nanocrystal nanophotonic devices.

• OSTI ID: 22267733
• Journal Information: Applied Physics Letters, Vol. 104, Issue 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CHLORIDES
ENERGY TRANSFER
EXCITONS
GRAPHENE
NANOSTRUCTURES
RESONANCE
TIME RESOLUTION