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Power-law photoluminescence decay in quantum dots
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SYSNO ASEP 0438701 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Power-law photoluminescence decay in quantum dots Author(s) Král, Karel (FZU-D) RID
Menšík, Miroslav (UMCH-V) RIDSource Title 7th International Conference on Low Dimensional Structures and Devices (LDSD. - Melville : AIP, 2014 / HernandezCalderon I. ; Henini M. - ISBN 978-0-7354-1232-3 Pages s. 87-90 Number of pages 4 s. Publication form Print - P Action International Conference on Low Dimensional Structures and Devices /7./ (LDSD 2011) Event date 22.05.2011-27.05.2011 VEvent location Telchac Country MX - Mexico Event type WRD Language eng - English Country US - United States Keywords photoluminescence decay ; quantum dots ; power-law ; electron-phonon interaction ; up-conversion Subject RIV BM - Solid Matter Physics ; Magnetism Institutional support FZU-D - RVO:68378271 ; UMCH-V - RVO:61389013 UT WOS 000341459700019 EID SCOPUS 84903731122 DOI https://doi.org/10.1063/1.4878284 Annotation Some quantum dot samples show a long-time (power-law) behavior of their luminescence intensity decay. This effect has been recently explained as being due to a cooperation of many tunneling channels transferring electrons from small quantum dots with triplet exciton to quantum dots at which the electrons can recombine with the holes in the valence band states. In this work we show that the long-time character of the sample luminescence decay can also be caused by an intrinsic property of a single dot, namely, by a non-adiabatic effect of the electron occupation up-conversion caused by the electron-phonon multiple scattering mechanism. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2015
Počet záznamů: 1