Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2716067
Title: Auger recombination and intraband absorption of two-photon-excited carriers in colloidal CdSe quantum dots
Authors: Qu, Y. 
Ji, W. 
Zheng, Y.
Ying, J.Y.
Issue Date: 2007
Citation: Qu, Y., Ji, W., Zheng, Y., Ying, J.Y. (2007). Auger recombination and intraband absorption of two-photon-excited carriers in colloidal CdSe quantum dots. Applied Physics Letters 90 (13) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2716067
Abstract: Auger recombination, quantized Auger rate, and intraband absorption of two-photon-excited carriers in colloidal CdSe quantum dots have been investigated systematically with femtosecond Z scans and transient absorption measurements. The Auger constant is revealed to be on the order of 10 -30 cm6 s-1, while the intraband absorption cross sections are found to be in the range of 10-18-10-17 cm 2. The authors' experimental evidence demonstrates that the Auger recombination or the intraband absorption takes place under the condition that the average electron-hole pair per quantum dot is in excess of the unity. © 2007 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/95837
ISSN: 00036951
DOI: 10.1063/1.2716067
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