Quantum dot photodegradation due to CdSe-ZnO charge transfer: Transient absorption study
(2012) In Applied Physics Letters 100(24).- 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]
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2891267
- author
- Zidek, Karel LU ; Zheng, Kaibo LU ; Chabera, Pavel LU ; Qenawy, Mohamed LU and Pullerits, Tönu LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 100
- issue
- 24
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000305269200069
- scopus:84863328342
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4729382
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- 4f2a5e78-44f2-4d84-8b41-7dfcf2c01329 (old id 2891267)
- date added to LUP
- 2016-04-01 10:14:01
- date last changed
- 2023-10-11 22:53:49
@article{4f2a5e78-44f2-4d84-8b41-7dfcf2c01329, 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]}}, author = {{Zidek, Karel and Zheng, Kaibo and Chabera, Pavel and Qenawy, Mohamed and Pullerits, Tönu}}, issn = {{0003-6951}}, language = {{eng}}, number = {{24}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Applied Physics Letters}}, title = {{Quantum dot photodegradation due to CdSe-ZnO charge transfer: Transient absorption study}}, url = {{http://dx.doi.org/10.1063/1.4729382}}, doi = {{10.1063/1.4729382}}, volume = {{100}}, year = {{2012}}, }