Title: ZnO nanowalls.
Authors: Lao, J.Y.; Huang, J.Y.; Wang, D.Z.; Ren, Z.F.; Steeves, D.; Kimball, B.; Porter, W.
Abstract: Wurtzite ZnO nanowall structures have been synthesized on a (110) Al[sub 2]O[sub 3] substrate by a thermal evaporation and condensation method. The nanowalls are connected to each other and have a thickness of about 20–100 nm. An excellent epitaxial relationship with the substrate has been observed by X-ray diffraction. Edge-dislocation dipoles were observed by transmission electron microscopy. Photoluminescence measurements show strong UV emission at 390 nm for the white-gray nanowalls grown at high temperature, and very weak UV emission for the reddish nanowalls grown at low temperature.
Subjects: ZINC oxide; NANOSTRUCTURED materials; EVAPORATION (Chemistry); CONDENSATION; PHOTOLUMINESCENCE; MATERIALS science
Publication: Applied Physics A: Materials Science & Processing, 2004, Vol 78, Issue 4, p539
ISSN: 0947-8396
Publication type: Academic Journal
DOI: 10.1007/s00339-003-2391-2

ZnO nanowalls.

Lao, J.Y.; Huang, J.Y.; Wang, D.Z.; Ren, Z.F.; Steeves, D.; Kimball, B.; Porter, W.