Photoluminescence spectroscopy of single CdSe nanocrystallite quantum dots

被引：641

作者：

Empedocles, SA

Norris, DJ

Bawendi, MG

机构：

[1] Massachusetts Institute of Technology, Cambridge, MA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.77.3873

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We collect and spectrally resolve photoluminescence from single CdSe nanocrystallite quantum dots. The elimination of spectral inhomogeneities reveals resolution limited spectral linewidths (<120 mu eV at 10 K) more than 50 times narrower than expected from ensemble measurements. Light driven spectral diffusion is observed as a form of power broadening. These studies confirm the atomiclike nature of the emitting state in CdSe nanocrystallites.

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页码：3873 / 3876

页数：4

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