High resolution resonant photoluminescence excitation of CdSe∕ZnS nanocrystals at low temperatures | Zendy

Olivier Labeau | Zendy; Philippe Tamarat | Zendy; Brahim Lounis | Zendy

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High resolution resonant photoluminescence excitation of CdSe∕ZnS nanocrystals at low temperatures

Author(s) -

Olivier Labeau,

Philippe Tamarat,

Brahim Lounis

Publication year - 2006

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2208962

Subject(s) - photoluminescence , excitation , materials science , exciton , photoluminescence excitation , optoelectronics , nanocrystal , liquid helium , helium , atomic physics , nanotechnology , condensed matter physics , physics , quantum mechanics

We present a new technique to perform high resolution resonant photoluminescence excitation of CdSe/ZnS nanocrystals. The method takes advantage of the long photoluminescence decay times (~ 1 Μs) observed in this system at liquid helium temperatures. Resonant photoluminescence excitation can be performed using a tunable pulsed excitation and a time-gated detection. Spectral hole burning investigations on an ensemble of CdSe/ZnS nanocrystals lead to homogeneous linewidths of ~100 µeV for the band edge exciton state

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