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Electron Transfer in Quantum-Dot-Sensitized ZnO Nanowires: Ultrafast Time-Resolved Absorption and Terahertz Study

Zidek, Karel LU ; Zheng, Kaibo LU ; Ponseca, Carlito LU ; Messing, Maria LU ; Wallenberg, Reine LU ; Chabera, Pavel LU ; Qenawy, Mohamed LU ; Sundström, Villy LU and Pullerits, Tönu LU (2012) In Journal of the American Chemical Society 134(29). p.12110-12117
Abstract
Photoinduced electron injection dynamics from CdSe quantum dots to ZnO nanowires is studied by transient absorption and time-resolved terahertz spectroscopy measurements. Ultrafast electron transfer from the CdSe quantum dots to ZnO is proven to be efficient already on a picoseconds time scale (tau = 3-12 ps). The measured kinetics was found to have a two-component character, whose origin is discussed in detail. The obtained results suggest that electrons are injected into ZnO via an intermediate charge transfer state.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of the American Chemical Society
volume
134
issue
29
pages
12110 - 12117
publisher
The American Chemical Society (ACS)
external identifiers
  • wos:000306724500058
  • scopus:84864271718
  • pmid:22730926
ISSN
1520-5126
DOI
10.1021/ja3029679
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), Solid State Physics (011013006), Polymer and Materials Chemistry (LTH) (011001041)
id
7d2e7b85-888c-4d44-bc81-b73f6b0ed9dd (old id 3070267)
date added to LUP
2016-04-01 13:05:01
date last changed
2023-11-12 11:37:31
@article{7d2e7b85-888c-4d44-bc81-b73f6b0ed9dd,
  abstract     = {{Photoinduced electron injection dynamics from CdSe quantum dots to ZnO nanowires is studied by transient absorption and time-resolved terahertz spectroscopy measurements. Ultrafast electron transfer from the CdSe quantum dots to ZnO is proven to be efficient already on a picoseconds time scale (tau = 3-12 ps). The measured kinetics was found to have a two-component character, whose origin is discussed in detail. The obtained results suggest that electrons are injected into ZnO via an intermediate charge transfer state.}},
  author       = {{Zidek, Karel and Zheng, Kaibo and Ponseca, Carlito and Messing, Maria and Wallenberg, Reine and Chabera, Pavel and Qenawy, Mohamed and Sundström, Villy and Pullerits, Tönu}},
  issn         = {{1520-5126}},
  language     = {{eng}},
  number       = {{29}},
  pages        = {{12110--12117}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of the American Chemical Society}},
  title        = {{Electron Transfer in Quantum-Dot-Sensitized ZnO Nanowires: Ultrafast Time-Resolved Absorption and Terahertz Study}},
  url          = {{http://dx.doi.org/10.1021/ja3029679}},
  doi          = {{10.1021/ja3029679}},
  volume       = {{134}},
  year         = {{2012}},
}