Published March 28, 2011 | Version v1
Journal article Metadata-only

Enhancement of the near-band-edge photoluminescence of ZnO nanowires: Important role of hydrogen incorporation versus plasmon resonances

Creators

  • 1. Institute of Solid State Physics, University of Bremen, D-28359 Bremen (Germany)
  • 2. Institute for Applied Physics, Karlsruhe Institute of Technology, D-76131 Karlsruhe (Germany)

Description

We investigated the photoluminescence properties of ZnO nanowires coated with Au, Ag, and Pt nanoparticles deposited by dc sputtering. A strong enhancement of the near-band-edge emission was observed in all metal-coated samples but also if the samples were treated with Ar plasma without any nanoparticle deposition. High-resolution photoluminescence spectroscopy revealed hydrogen-donor-bound-exciton emission in all samples indicating unintentional hydrogen incorporation. A shorter decay time of the near-band-edge emission was observed in all cases. The results indicate that unintentional hydrogen incorporation plays a dominant role when metal deposition is performed by sputtering.

Additional details

Identifiers

DOI
10.1063/1.3569951;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
98
Journal Issue
13
Journal Page Range
p. 131111-131111.3
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42108997
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S77: NANOSCIENCE AND NANOTECHNOLOGY;
Descriptors DEI
DEPOSITION; EXCITONS; GOLD; HYDROGEN; NANOSTRUCTURES; PARTICLES; PHOTOLUMINESCENCE; PLASMA; PLATINUM; PROCESSING; QUANTUM WIRES; RESOLUTION; SEMICONDUCTOR MATERIALS; SILVER; SPECTROSCOPY; SPUTTERING; SURFACES; ZINC OXIDES
Descriptors DEC
CHALCOGENIDES; ELEMENTS; EMISSION; LUMINESCENCE; MATERIALS; METALS; NANOSTRUCTURES; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; PLATINUM METALS; QUASI PARTICLES; TRANSITION ELEMENTS; ZINC COMPOUNDS

Optional Information

Notes
(c) 2011 American Institute of Physics