Published June 18, 2008 | Version v1
Journal article Metadata-only

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

Creators

  • 1. School of Advanced Materials and System Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 730-701 (Korea, Republic of)
  • 2. Department of Materials Science and Engineering, Kyungpook National University, Sangju, Gyeongbuk 742-711 (Korea, Republic of)
  • 3. IT Convergence Technology Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon 305-700 (Korea, Republic of)
  • 4. IT Convergence Technology Research Laboratory, Woosuk University, 490 Hujeong-Ri, Jeollabuk-Do 565-701 (Korea, Republic of)
  • 5. International Innovation Center and Advanced Research Institute for Nanoscale Science and Technology, Kyoto University, Nishikyo-ku, Kyoto 615-8520 (Japan)

Description

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 deg. 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

Availability note (English)

Available from http://dx.doi.org/10.1088/0957-4484/19/24/245708

Additional details

Identifiers

DOI
10.1088/0957-4484/19/24/245708;
PII
S0957-4484(08)66444-2;

Publishing Information

Journal Title
Nanotechnology (Print)
Journal Volume
19
Journal Issue
24
Journal Page Range
[5 p.]
ISSN
0957-4484

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39111909
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CARBON; CHEMICAL VAPOR DEPOSITION; FILMS; NANOTUBES; OPTICAL PROPERTIES; PHOTOLUMINESCENCE; SPECTRA; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; ZINC OXIDES
Descriptors DEC
CHALCOGENIDES; CHEMICAL COATING; DEPOSITION; ELEMENTS; EMISSION; LUMINESCENCE; NANOSTRUCTURES; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; PHYSICAL PROPERTIES; SURFACE COATING; TEMPERATURE RANGE; ZINC COMPOUNDS