skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Kinetically controlled fabrication of single-crystalline TiO 2 nanobrush architectures with high energy {001} facets

Abstract

Here, this study demonstrates that precise control of nonequilibrium growth conditions during pulsed laser deposition (PLD) can be exploited to produce single-crystalline anatase TiO 2 nanobrush architectures with large surface areas terminated with high energy {001} facets. The data indicate that the key to nanobrush formation is controlling the atomic surface transport processes to balance defect aggregation and surface-smoothing processes. High-resolution scanning transmission electron microscopy data reveal that defect-mediated aggregation is the key to TiO 2 nanobrush formation. The large concentration of defects present at the intersection of domain boundaries promotes aggregation of PLD growth species, resulting in the growth of the single-crystalline nanobrush architecture. This study proposes a model for the relationship between defect creation and growth mode in nonequilibrium environments, which enables application of this growth method to novel nanostructure design in a broad range of materials.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1349945
Alternate Identifier(s):
OSTI ID: 1349946; OSTI ID: 1351772
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Published Article
Journal Name:
Advanced Science
Additional Journal Information:
Journal Volume: 4; Journal Issue: 8; Journal ID: ISSN 2198-3844
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; nanobrush; anatase; defect-mediated aggregation; single crystalline; pulsed laser deposition

Citation Formats

Fan, Lisha, Gao, Xiang, Lee, Dongkyu, Guo, Er -Jia, Lee, Shinbuhm, Snijders, Paul C., Ward, Thomas Zac, Eres, Gyula, Chisholm, Matthew F., and Lee, Ho Nyung. Kinetically controlled fabrication of single-crystalline TiO2 nanobrush architectures with high energy {001} facets. United States: N. p., 2017. Web. doi:10.1002/advs.201700045.
Fan, Lisha, Gao, Xiang, Lee, Dongkyu, Guo, Er -Jia, Lee, Shinbuhm, Snijders, Paul C., Ward, Thomas Zac, Eres, Gyula, Chisholm, Matthew F., & Lee, Ho Nyung. Kinetically controlled fabrication of single-crystalline TiO2 nanobrush architectures with high energy {001} facets. United States. doi:10.1002/advs.201700045.
Fan, Lisha, Gao, Xiang, Lee, Dongkyu, Guo, Er -Jia, Lee, Shinbuhm, Snijders, Paul C., Ward, Thomas Zac, Eres, Gyula, Chisholm, Matthew F., and Lee, Ho Nyung. Wed . "Kinetically controlled fabrication of single-crystalline TiO2 nanobrush architectures with high energy {001} facets". United States. doi:10.1002/advs.201700045.
@article{osti_1349945,
title = {Kinetically controlled fabrication of single-crystalline TiO2 nanobrush architectures with high energy {001} facets},
author = {Fan, Lisha and Gao, Xiang and Lee, Dongkyu and Guo, Er -Jia and Lee, Shinbuhm and Snijders, Paul C. and Ward, Thomas Zac and Eres, Gyula and Chisholm, Matthew F. and Lee, Ho Nyung},
abstractNote = {Here, this study demonstrates that precise control of nonequilibrium growth conditions during pulsed laser deposition (PLD) can be exploited to produce single-crystalline anatase TiO2 nanobrush architectures with large surface areas terminated with high energy {001} facets. The data indicate that the key to nanobrush formation is controlling the atomic surface transport processes to balance defect aggregation and surface-smoothing processes. High-resolution scanning transmission electron microscopy data reveal that defect-mediated aggregation is the key to TiO2 nanobrush formation. The large concentration of defects present at the intersection of domain boundaries promotes aggregation of PLD growth species, resulting in the growth of the single-crystalline nanobrush architecture. This study proposes a model for the relationship between defect creation and growth mode in nonequilibrium environments, which enables application of this growth method to novel nanostructure design in a broad range of materials.},
doi = {10.1002/advs.201700045},
journal = {Advanced Science},
number = 8,
volume = 4,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1002/advs.201700045

Save / Share: