Energetic disorder limits energy transfer in semiconductor nanocrystal-DNA-dye conjugates
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Article number | 143101 |
Journal / Publication | Applied Physics Letters |
Volume | 95 |
Issue number | 14 |
Publication status | Published - 2009 |
Externally published | Yes |
Link(s)
Abstract
We demonstrate the influence of spectral linewidths of individual donor-acceptor couples on energy transfer efficiency in semiconductor nanocrystal-DNA-organic dye conjugates. Temperature-dependent single molecule and ensemble spectroscopy data are analyzed using the Förster theory within the macroscopic and microscopic approaches. The results obtained evidence on the importance of the spectral overlap between emission of a single donor and absorption of a single acceptor in its close vicinity, which determines the microscopic resonance and transfer efficiency between individual neighbors. This realization poses important implications on the applicability of ensemble spectral overlap for the analysis of distance dependencies of nanoscopic objects. © 2009 American Institute of Physics.
Citation Format(s)
Energetic disorder limits energy transfer in semiconductor nanocrystal-DNA-dye conjugates. / Becker, Klaus; Rogach, Andrey L.; Feldmann, Jochen et al.
In: Applied Physics Letters, Vol. 95, No. 14, 143101, 2009.
In: Applied Physics Letters, Vol. 95, No. 14, 143101, 2009.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review