Power law carrier dynamics in semiconductor nanocrystals at nanosecond timescales

P. H. Sher; J. M. Smith; P. A. Dalgarno; R. J. Warburton; X. Chen; P. J. Dobson; S. M. Daniels; N. L. Pickett; P. O'Brien

doi:10.1063/1.2894193

Power law carrier dynamics in semiconductor nanocrystals at nanosecond timescales

P. H. Sher, J. M. Smith, P. A. Dalgarno, R. J. Warburton, X. Chen, P. J. Dobson, S. M. Daniels, N. L. Pickett, P. O'Brien

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

83 Citations (Scopus)

Abstract

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. © 2008 American Institute of Physics.

Original language	English
Article number	101111
Journal	Applied Physics Letters
Volume	92
Issue number	10
DOIs	https://doi.org/10.1063/1.2894193
Publication status	Published - 2008

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title = "Power law carrier dynamics in semiconductor nanocrystals at nanosecond timescales",

abstract = "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. {\textcopyright} 2008 American Institute of Physics.",

author = "Sher, {P. H.} and Smith, {J. M.} and Dalgarno, {P. A.} and Warburton, {R. J.} and X. Chen and Dobson, {P. J.} and Daniels, {S. M.} and Pickett, {N. L.} and P. O'Brien",

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AU - Smith, J. M.

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AU - Chen, X.

AU - Dobson, P. J.

AU - Daniels, S. M.

AU - Pickett, N. L.

AU - O'Brien, P.

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AB - 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. © 2008 American Institute of Physics.

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Power law carrier dynamics in semiconductor nanocrystals at nanosecond timescales

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