Quantum dot photodegradation due to CdSe-ZnO charge transfer: Transient absorption study
Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift
Abstract
We study changes in ultrafast transient absorption due to photodegradation of quantum dots attached to ZnO nanowire. The time-resolved measurements reveal impact of photodegradation on three distinct kinetic components present in transient absorption tau similar to 7 ps, 80 ps, and 7.5 ns). In addition, we observe superlinear dependence of photodegradation rate on concentration of excited electrons. The data are used to evaluate the mean electron back-recombination time of similar to 1 mu s. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4729382]
Detaljer
Författare | |
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Enheter & grupper | |
Forskningsområden | Ämnesklassifikation (UKÄ) – OBLIGATORISK
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Originalspråk | engelska |
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Tidskrift | Applied Physics Letters |
Volym | 100 |
Utgåva nummer | 24 |
Status | Published - 2012 |
Publikationskategori | Forskning |
Peer review utförd | Ja |