Power law carrier dynamics in semiconductor nanocrystals at nanosecond timescales

被引：76

作者：

Sher, P. H. ^{[1
]}

Smith, J. M. ^{[1
]}

Dalgarno, P. A. ^{[2
]}

Warburton, R. J. ^{[2
]}

Chen, X.

Dobson, P. J. ^{[3
]}

Daniels, S. M. ^{[4
]}

Pickett, N. L. ^{[4
]}

O'Brien, P. ^{[4
]}

机构：

[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

[2] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

[3] Univ Oxford, Dept Engn Sci, Oxford OX1 3PH, England

[4] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.2894193

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the observation of power law dynamics on nanosecond to microsecond timescales in the fluorescence decay from semiconductor nanocrystals and draw a comparison between this behavior and power law fluorescence blinking from single nanocrystals. The link is supported by comparison of blinking and lifetime data measured simultaneously from the same nanocrystal. Our results reveal that the power law coefficient changes little over the nine decades in time from 10 ns to 10 s, in contrast with the predictions of some diffusion based models of power law behavior. (C) 2008 American Institute of Physics.

引用

页数：3

共 17 条

[1]

Bardou F., 2001, LEVY STAT LASER COOL

[2] Statistical aging and nonergodicity in the fluorescence of single nanocrystals [J].