TY - JOUR
T1 - Synthesis of uniformly distributed single- and double-sided zinc oxide (ZnO) nanocombs
AU - Altintas Yildirim, Ozlem
AU - Liu, Yuzi
AU - Petford-Long, Amanda K.
N1 - Funding Information:
OAY thanks The Scientific and Technological Research Council of Turkey (TUBITAK), Turkey for support by the National Scholarship Program for Ph.D. students and also by the METU-ÖYP Program . AKPL acknowledges support from the U.S. Department of Energy , U.S. Office of Science , U.S. Basic Energy Sciences , Materials Sciences and Engineering Division at at Argonne National Laboratory. Use of Center for Nanoscale Materials was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract no. DE-AC02-06CH11357 .
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
PY - 2015/11/15
Y1 - 2015/11/15
N2 - Uniformly distributed single- and double-sided zinc oxide (ZnO) nanocomb structures have been prepared by a vapor-liquid-solid technique from a mixture of ZnO nanoparticles and graphene nanoplatelets. The ZnO seed nanoparticles were synthesized via a simple precipitation method. The structure of the ZnO nanocombs could easily be controlled by tuning the carrier-gas flow rate during growth. Higher flow rate resulted in the formation of uniformly-distributed single-sided comb structures with nanonail-shaped teeth, as a result of the self-catalysis effect of the catalytically active Zn-terminated polar (0001) surface. Lower gas flow rate was favorable for production of double-sided comb structures with the two sets of teeth at an angle of ~110° to each other along the comb ribbon, which was attributed to the formation of a bicrystal nanocomb ribbon. The formation of such a double-sided structure with nanonail-shaped teeth has not previously been reported.
AB - Uniformly distributed single- and double-sided zinc oxide (ZnO) nanocomb structures have been prepared by a vapor-liquid-solid technique from a mixture of ZnO nanoparticles and graphene nanoplatelets. The ZnO seed nanoparticles were synthesized via a simple precipitation method. The structure of the ZnO nanocombs could easily be controlled by tuning the carrier-gas flow rate during growth. Higher flow rate resulted in the formation of uniformly-distributed single-sided comb structures with nanonail-shaped teeth, as a result of the self-catalysis effect of the catalytically active Zn-terminated polar (0001) surface. Lower gas flow rate was favorable for production of double-sided comb structures with the two sets of teeth at an angle of ~110° to each other along the comb ribbon, which was attributed to the formation of a bicrystal nanocomb ribbon. The formation of such a double-sided structure with nanonail-shaped teeth has not previously been reported.
KW - A1. Nanostructures
KW - A2. Growth from vapor
KW - B2. Semiconducting II-VI materials
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U2 - 10.1016/j.jcrysgro.2015.08.007
DO - 10.1016/j.jcrysgro.2015.08.007
M3 - Article
AN - SCOPUS:84941079442
SN - 0022-0248
VL - 430
SP - 34
EP - 40
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
ER -