Effect of metal oxide morphology on electron injection from CdSe quantum dots to ZnO
(2013) In Applied Physics Letters 102(16).- Abstract
- Performance of quantum dot sensitized solar cells relies on a rapid electron injection from quantum dot to metal oxide. We studied the injection process in CdSe-ZnO system by ultrafast time-resolved absorption spectroscopy for two types of acceptor morphologies-nanowires and nanoparticles' films. Based on comparison between experimental data and Marcus theory, we demonstrate that the acceptor morphology has a significant impact on electron injection due to (i) change in material permittivity and (ii) different density of the band-edge states. The results open a reference to improve injection efficiency in quantum dot-metal oxide system by selection of the acceptor morphology. (C) 2013 AIP Publishing LLC.... (More)
- Performance of quantum dot sensitized solar cells relies on a rapid electron injection from quantum dot to metal oxide. We studied the injection process in CdSe-ZnO system by ultrafast time-resolved absorption spectroscopy for two types of acceptor morphologies-nanowires and nanoparticles' films. Based on comparison between experimental data and Marcus theory, we demonstrate that the acceptor morphology has a significant impact on electron injection due to (i) change in material permittivity and (ii) different density of the band-edge states. The results open a reference to improve injection efficiency in quantum dot-metal oxide system by selection of the acceptor morphology. (C) 2013 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4803173] (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3821551
- author
- Zheng, Kaibo LU ; Zidek, Karel LU ; Qenawy, Mohamed LU ; Chabera, Pavel LU ; Abd El-Sadek, Mahmoud S. and Pullerits, Tönu LU
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Letters
- volume
- 102
- issue
- 16
- article number
- 163119
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000318269300084
- scopus:84876976613
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4803173
- 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
- 85017b8d-4634-459f-b03d-139720fc4e58 (old id 3821551)
- date added to LUP
- 2016-04-01 10:38:44
- date last changed
- 2023-08-31 07:43:09
@article{85017b8d-4634-459f-b03d-139720fc4e58,
abstract = {{Performance of quantum dot sensitized solar cells relies on a rapid electron injection from quantum dot to metal oxide. We studied the injection process in CdSe-ZnO system by ultrafast time-resolved absorption spectroscopy for two types of acceptor morphologies-nanowires and nanoparticles' films. Based on comparison between experimental data and Marcus theory, we demonstrate that the acceptor morphology has a significant impact on electron injection due to (i) change in material permittivity and (ii) different density of the band-edge states. The results open a reference to improve injection efficiency in quantum dot-metal oxide system by selection of the acceptor morphology. (C) 2013 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4803173]}},
author = {{Zheng, Kaibo and Zidek, Karel and Qenawy, Mohamed and Chabera, Pavel and Abd El-Sadek, Mahmoud S. and Pullerits, Tönu}},
issn = {{0003-6951}},
language = {{eng}},
number = {{16}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Applied Physics Letters}},
title = {{Effect of metal oxide morphology on electron injection from CdSe quantum dots to ZnO}},
url = {{http://dx.doi.org/10.1063/1.4803173}},
doi = {{10.1063/1.4803173}},
volume = {{102}},
year = {{2013}},
}