ZnO nanowalls and nanocolumns grown by metalorganic chemical vapor deposition

Sang Woo Kim, Shizuo Fujita, Min Su Yi, Han Ki Kim, Beelyong Yang, Dae Ho Yoon

Research output: Chapter in Book/Report/Conference proceedingConference contribution


ZnO nanowalls and nanocolumns were synthesized on Si3N 4 (50 nm)/Si (001) substrates at low growth temperature (350 and 400 °C) by metalorganic chemical vapor deposition (MOCVD) with no metal catalysts. ZnO nanowalls with extremely small wall thicknesses below 10 nm and nanocolumns with diameters over 100 nm were formed on the Si3N 4/Si substrates relying on MOCVD-growth temperature. It was found that ZnO nanowalls have a strong c-axis preferred orientation with a hexagonal structure, while ZnO nanocolumns have a weak c-axis preferred orientation with broken stacking orders in synchrotron x-ray scattering experiments. In addition, strong free-exciton emission from the ZnO nanowalls was clearly observed in photoluminescence measurements. On the other hand, we could not observe any emission bands from the ZnO nanocolumn samples.

Original languageEnglish
Title of host publicationAdvances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia
PublisherTrans Tech Publications Ltd
Number of pages4
EditionPART 1
ISBN (Print)3908451310, 9783908451310
Publication statusPublished - 2007
EventIUMRS International Conference in Asia 2006, IUMRS-ICA 2006 - Jeju, Korea, Republic of
Duration: 2006 Sept 102006 Sept 14

Publication series

NameSolid State Phenomena
NumberPART 1
ISSN (Print)1012-0394


OtherIUMRS International Conference in Asia 2006, IUMRS-ICA 2006
Country/TerritoryKorea, Republic of

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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