Published March 24, 2003 | Version v1
Journal article Metadata-only

Enhanced photoluminescence from CdS:Mn/ZnS core/shell quantum dots

Creators

  • 1. Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611-6400 (United States)

Description

Enhanced photoluminescence (PL) is reported from Mn2+-doped CdS nanocrystals capped with ZnS (CdS:Mn/ZnS core/shell) that were prepared using a reverse micelle route. Compared to organically (n-dodecanethiol) capped CdS:Mn nanocrystals, CdS:Mn/ZnS core/shell nanocrystals exhibited much stronger and sharper Mn2+4T1-6A1 yellow PL emission. This is presumably the result of effective passivation of CdS surface states by the ZnS shell and consequent suppression of nonradiative recombination transitions. The core/shell nanostructure was confirmed using x-ray photoelectron spectroscopy and energy dispersive spectroscopy data

Additional details

Identifiers

DOI
10.1063/1.1563305;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
82
Journal Issue
12
Journal Page Range
p. 1965-1967
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35032399
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
CADMIUM SULFIDES; CRYSTAL DOPING; ELECTRONIC STRUCTURE; EXPERIMENTAL DATA; HETEROJUNCTIONS; INTERFACES; MANGANESE ADDITIONS; MICROSTRUCTURE; PHOTOLUMINESCENCE; QUANTUM DOTS; SEMICONDUCTOR MATERIALS; X-RAY PHOTOELECTRON SPECTROSCOPY; ZINC SULFIDES
Descriptors DEC
ALLOYS; CADMIUM COMPOUNDS; CHALCOGENIDES; DATA; ELECTRON SPECTROSCOPY; EMISSION; INFORMATION; INORGANIC PHOSPHORS; LUMINESCENCE; MANGANESE ALLOYS; MATERIALS; NANOSTRUCTURES; NUMERICAL DATA; PHOSPHORS; PHOTOELECTRON SPECTROSCOPY; PHOTON EMISSION; SEMICONDUCTOR JUNCTIONS; SPECTROSCOPY; SULFIDES; SULFUR COMPOUNDS; TRANSITION ELEMENT ALLOYS; ZINC COMPOUNDS

Optional Information

Notes
(c) 2003 American Institute of Physics.