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Volumn 113, Issue 46, 2009, Pages 19859-19862

Electron relaxation following UV excitation in CdSe nanocrystals: Sub-picosecond-fast population of the 1P states across a gap wider than 10 phonon energies

Author keywords

[No Author keywords available]

Indexed keywords

CARRIER MULTIPLICATION; CDSE NANOCRYSTALS; COOLING MODEL; D ELECTRONS; ELECTRON DECAY; ELECTRON RELAXATION; ENERGY SEPARATIONS; HIGH ENERGY; INTRABAND RELAXATION; MULTIPLE EXCITON; PHONON EMISSIONS; PHONON ENERGIES; PICOSECONDS; SEMICONDUCTOR NANOCRYSTALS; SINGLE PHOTONS; TIME CONSTANTS; UV EXCITATION;

EID: 72149130557     PISSN: 19327447     EISSN: 19327455     Source Type: Journal    
DOI: 10.1021/jp907755j     Document Type: Article
Times cited : (4)

References (31)
  • 11
    • 72149111776 scopus 로고    scopus 로고
    • Auger electron cooling is a non-radiative decay process whereby an excited electron relaxes to the ground state by transferring its excess energy to a hole (usually photogenerated with the electron), which is excited to deep valence levels. The hole then undergoes a fast relaxation (with typical times e1 ps) to the band edge through the denser valence band energy ladder, via inelastic energy transfer to the lattice (also see refs 12 and 13
    • Auger electron cooling is a non-radiative decay process whereby an excited electron relaxes to the ground state by transferring its excess energy to a hole (usually photogenerated with the electron), which is excited to deep valence levels. The hole then undergoes a fast relaxation (with typical times e1 ps) to the band edge through the denser valence band energy ladder, via inelastic energy transfer to the lattice (also see refs 12 and 13).
  • 22
    • 72149105715 scopus 로고    scopus 로고
    • A case in which this does not apply is illustrated by the following example: the strategy suggested in ref 22 to suppress the P-to-S decay will not substantially suppress the D-to-P relaxation, due to the quasi 6-fold degeneracy of the P states compared to the 2-fold degeneracy of the S-like ground state
    • A case in which this does not apply is illustrated by the following example: the strategy suggested in ref 22 to suppress the P-to-S decay will not substantially suppress the D-to-P relaxation, due to the quasi 6-fold degeneracy of the P states compared to the 2-fold degeneracy of the S-like ground state.
  • 27
    • 72149134046 scopus 로고    scopus 로고
    • In the case of lifetimes calculated assuming a 0% size distribution in the samples
    • In the case of lifetimes calculated assuming a 0% size distribution in the samples.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.