Ab Initio Time-Domain Study of Phonon-Assisted Relaxation of Charge Carriers in a PbSe Quantum Dot

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Svetlana V. Kilina; Colleen F. Craig; Dmitri S. Kilin; Oleg V. Prezhdo

2007

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  • The phonon-induced relaxation dynamics of charge carriers in a PbSe quantum dot is studied for the first time by ab initio density functional theory in the time-domain
  • The picosecond time scale of the relaxation and the absence of the phonon bottleneck are rationalized by relatively high electron and hole state densities
  • While many of these states show only weak optical activity, most of them participate in the electron-vibrational relaxation
  • Journal of the American Chemical Society2011,133 , 19240-19249

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