Synthesis of uniformly distributed single- and double-sided zinc oxide (ZnO) nanocombs

Yildirim O. A., Liu Y., Petford-Long A. K.

JOURNAL OF CRYSTAL GROWTH, cilt.430, ss.34-40, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 430
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jcrysgro.2015.08.007
  • Dergi Adı: JOURNAL OF CRYSTAL GROWTH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.34-40
  • Anahtar Kelimeler: Nanostructures, Growth from vapor, Semiconducting II-VI materials, THERMAL-EVAPORATION, OPTICAL-PROPERTIES, GROWTH, TEMPERATURE, NANOSTRUCTURES, MORPHOLOGY, EMISSION, PHOTOLUMINESCENCE, ULTRAVIOLET, FILMS
  • Orta Doğu Teknik Üniversitesi Adresli: Hayır

Özet

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 similar to 110 degrees 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. (C) 2015 Elsevier B.V. All rights reserved,