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Title: 100-Fold Enhancement of Charge Transport in Uniaxially Oriented Mesoporous Anatase TiO 2 Films

Mesoporous semiconductor films are of considerable interest for applications in photoelectrochemical devices, however, despite intensive research till now, their charge transport properties remain significantly lower than their single-crystal counterparts. Herein, we report a novel low-temperature template-free technique for growing high surface area mesoporous anatase TiO2 films with a preferred [001] crystalline-orientation on FTO-coated glass substrate. Compared to mesoporous films that comprised of randomly oriented crystallites, the uniaxial orientation enables a 100-fold increase in the rate of electron transport. The uniaxially oriented mesoporous anatase TiO2 films exhibit should greatly facilitate the development and application of photoelectrochemical and electrochemical devices.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1]
  1. Soochow Univ., Suzhou (China)
  2. Northern Illinois Univ., DeKalb, IL (United States)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Report Number(s):
NREL/JA-5900-70673
Journal ID: ISSN 0947-6539; TRN: US1800614
Grant/Contract Number:
AC36-08GO28308
Type:
Accepted Manuscript
Journal Name:
Chemistry - A European Journal
Additional Journal Information:
Journal Volume: 24; Journal Issue: 1; Journal ID: ISSN 0947-6539
Publisher:
ChemPubSoc Europe
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; charge carrier; charge transport dynamics; photoelectronic systems; semiconductors; surface area
OSTI Identifier:
1414066

Li, Ke, Liu, Jie, Sheng, Xia, Chen, Liping, Xu, Tao, Zhu, Kai, and Feng, Xinjian. 100-Fold Enhancement of Charge Transport in Uniaxially Oriented Mesoporous Anatase TiO2 Films. United States: N. p., Web. doi:10.1002/chem.201704944.
Li, Ke, Liu, Jie, Sheng, Xia, Chen, Liping, Xu, Tao, Zhu, Kai, & Feng, Xinjian. 100-Fold Enhancement of Charge Transport in Uniaxially Oriented Mesoporous Anatase TiO2 Films. United States. doi:10.1002/chem.201704944.
Li, Ke, Liu, Jie, Sheng, Xia, Chen, Liping, Xu, Tao, Zhu, Kai, and Feng, Xinjian. 2017. "100-Fold Enhancement of Charge Transport in Uniaxially Oriented Mesoporous Anatase TiO2 Films". United States. doi:10.1002/chem.201704944.
@article{osti_1414066,
title = {100-Fold Enhancement of Charge Transport in Uniaxially Oriented Mesoporous Anatase TiO2 Films},
author = {Li, Ke and Liu, Jie and Sheng, Xia and Chen, Liping and Xu, Tao and Zhu, Kai and Feng, Xinjian},
abstractNote = {Mesoporous semiconductor films are of considerable interest for applications in photoelectrochemical devices, however, despite intensive research till now, their charge transport properties remain significantly lower than their single-crystal counterparts. Herein, we report a novel low-temperature template-free technique for growing high surface area mesoporous anatase TiO2 films with a preferred [001] crystalline-orientation on FTO-coated glass substrate. Compared to mesoporous films that comprised of randomly oriented crystallites, the uniaxial orientation enables a 100-fold increase in the rate of electron transport. The uniaxially oriented mesoporous anatase TiO2 films exhibit should greatly facilitate the development and application of photoelectrochemical and electrochemical devices.},
doi = {10.1002/chem.201704944},
journal = {Chemistry - A European Journal},
number = 1,
volume = 24,
place = {United States},
year = {2017},
month = {12}
}

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