ZnO nanotips and nanorods on carbon nanotube/Si substrates: anomalous p-type like optical properties of undoped ZnO nanotips

ZnO nanotips and nanorods were grown on screen-printed multi-walled carbon nanotube (MWCNT) films via thermal chemical vapor deposition at relative low growth temperatures of 400 and 500 °C. Uniform formation of ZnO nanotips and nanorods occurred on MWCNT-printed Si substrates, but were rarely obser...

Full description

Saved in:
Bibliographic Details
Published inNanotechnology Vol. 19; no. 24; p. 245708
Main Authors Park, Seung-Sik, Lee, Jin-Moo, Kim, Sung-Jin, Kim, Sang-Woo, Yi, Min-Su, Kim, Sang-Hyeob, Maeng, Sunglyul, Fujita, Shizuo
Format Journal Article
LanguageEnglish
Published England IOP Publishing 18.06.2008
Online AccessGet full text

Cover

More Information
Summary:ZnO nanotips and nanorods were grown on screen-printed multi-walled carbon nanotube (MWCNT) films via thermal chemical vapor deposition at relative low growth temperatures of 400 and 500 °C. Uniform formation of ZnO nanotips and nanorods occurred on MWCNT-printed Si substrates, but were rarely observed on bare Si substrates at the same growth temperatures. In photoluminescence (PL) measurements, it was found that ZnO nanorods exhibit typical intrinsic optical properties, while ZnO nanotips revealed p-type like luminescence behavior. Acceptor-related emission bands originating from neutral acceptor-bound exciton, free-to-acceptor and donor-acceptor pair transitions are clearly observed in temperature-dependent PL spectra of ZnO nanotips.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/19/24/245708