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Cohn AW, Rinehart JD, Schimpf AM, et al. Size dependence of negative trion Auger recombination in photodoped CdSe nanocrystals. Nano Lett. 2013;14(1):353-8doi: 10.1021/nl4041675.
Cohn, A. W., Rinehart, J. D., Schimpf, A. M., Weaver, A. L., & Gamelin, D. R. (2014). Size dependence of negative trion Auger recombination in photodoped CdSe nanocrystals. Nano letters, 14(1), 353-8. https://doi.org/10.1021/nl4041675
Cohn, Alicia W, et al. "Size dependence of negative trion Auger recombination in photodoped CdSe nanocrystals." Nano letters vol. 14,1 (2014): 353-8. doi: https://doi.org/10.1021/nl4041675
Cohn AW, Rinehart JD, Schimpf AM, Weaver AL, Gamelin DR. Size dependence of negative trion Auger recombination in photodoped CdSe nanocrystals. Nano Lett. 2014 Jan 08;14(1):353-8. doi: 10.1021/nl4041675. Epub 2013 Dec 17. PMID: 24328385.
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Nano Lett. 2014 Jan 08;14(1):353-8. doi: 10.1021/nl4041675. Epub 2013 Dec 17.

Size dependence of negative trion Auger recombination in photodoped CdSe nanocrystals.

Nano letters

Alicia W Cohn, Jeffrey D Rinehart, Alina M Schimpf, Amanda L Weaver, Daniel R Gamelin

Affiliations

  1. Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States.

PMID: 24328385 DOI: 10.1021/nl4041675

Abstract

We report a systematic investigation of the size dependence of negative trion (T(-)) Auger recombination rates in free-standing colloidal CdSe nanocrystals. Colloidal n-type CdSe nanocrystals of various radii have been prepared photochemically, and their trion decay dynamics have been measured using time-resolved photoluminescence spectroscopy. Trion Auger time constants spanning 3 orders of magnitude are observed, ranging from 57 ps (radius R = 1.4 nm) to 2.2 ns (R = 3.2 nm). The data reveal a substantially stronger size dependence than found for bi- or multiexciton Auger recombination in CdSe or other semiconductor nanocrystals, scaling in proportion to R(4.3).

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