Advanced

Particle size and crystallinity dependent electron injection in Fluorescein 27-sensitized TiO2 films.

Benko, Gabor LU ; Skårman, Björn LU ; Wallenberg, Reine LU ; Hagfeldt, Anders; Sundström, Villy LU and Yartsev, Arkady LU (2003) In The Journal of Physical Chemistry Part B 107(6). p.1370-1375
Abstract
Influence of processing parameters, such as autoclaving and firing temperature, on the optical properties of nanocrystalline anatase TiO2 film and on the process of electron injection from the dye fluorescein 27 to the as-prepared films is studied. Transmission electron microscopy and steady-state and time-resolved femtosecond spectroscopy measurements indicate that the larger the TiO2 particle and the better its overall crystallinity, the faster the process of electron injection. Unraveling factors that control the properties of the sub-20-nm sized semiconductor particles, and by this the electron injection to them, is important for understanding the process of interfacial electron transfer from the dye to the semiconductor, as well as... (More)
Influence of processing parameters, such as autoclaving and firing temperature, on the optical properties of nanocrystalline anatase TiO2 film and on the process of electron injection from the dye fluorescein 27 to the as-prepared films is studied. Transmission electron microscopy and steady-state and time-resolved femtosecond spectroscopy measurements indicate that the larger the TiO2 particle and the better its overall crystallinity, the faster the process of electron injection. Unraveling factors that control the properties of the sub-20-nm sized semiconductor particles, and by this the electron injection to them, is important for understanding the process of interfacial electron transfer from the dye to the semiconductor, as well as future optimization of the function of the photoelectrochemical cell based on dye-sensitized TiO2 films. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
The Journal of Physical Chemistry Part B
volume
107
issue
6
pages
1370 - 1375
publisher
The American Chemical Society
external identifiers
  • wos:000182533600013
  • scopus:0037434729
ISSN
1520-5207
DOI
10.1021/jp026442+
language
English
LU publication?
yes
id
ab2a512c-8aac-4990-813b-0326ae4b2f4a (old id 120939)
date added to LUP
2007-07-03 10:35:02
date last changed
2017-03-19 04:15:18
@article{ab2a512c-8aac-4990-813b-0326ae4b2f4a,
  abstract     = {Influence of processing parameters, such as autoclaving and firing temperature, on the optical properties of nanocrystalline anatase TiO2 film and on the process of electron injection from the dye fluorescein 27 to the as-prepared films is studied. Transmission electron microscopy and steady-state and time-resolved femtosecond spectroscopy measurements indicate that the larger the TiO2 particle and the better its overall crystallinity, the faster the process of electron injection. Unraveling factors that control the properties of the sub-20-nm sized semiconductor particles, and by this the electron injection to them, is important for understanding the process of interfacial electron transfer from the dye to the semiconductor, as well as future optimization of the function of the photoelectrochemical cell based on dye-sensitized TiO2 films.},
  author       = {Benko, Gabor and Skårman, Björn and Wallenberg, Reine and Hagfeldt, Anders and Sundström, Villy and Yartsev, Arkady},
  issn         = {1520-5207},
  language     = {eng},
  number       = {6},
  pages        = {1370--1375},
  publisher    = {The American Chemical Society},
  series       = {The Journal of Physical Chemistry Part B},
  title        = {Particle size and crystallinity dependent electron injection in Fluorescein 27-sensitized TiO2 films.},
  url          = {http://dx.doi.org/10.1021/jp026442+},
  volume       = {107},
  year         = {2003},
}