Intraband transitions in semiconductor nanocrystals

被引：126

作者：

Guyot-Sionnest, P ^{[1
]}

Hines, MA ^{[1
]}

机构：

[1] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

来源：

APPLIED PHYSICS LETTERS | 1998年 / 72卷 / 06期

关键词：

D O I：

10.1063/1.120846

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Intraband spectra of CdSe nanocrystal colloids are observed. The photoexcited nanocrystals, of average diameters 31.5, 38, and 43 Angstrom, exhibit an isolated and strong infrared-induced absorption with peak energy between 0.5 and 0.3 eV. The energies and cross sections of the resonance are consistent with a one-electron transition between the delocalized 1 S-e and 1 P-e states of the strongly confined quantum dots. (C) 1998 American Institute of Physics.

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页码：686 / 688

页数：3

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