Published January 2009 | Version v1
Journal article Metadata-only

Trap state emission of water-soluble CdS nanocrystals

Creators

  • 1. Quantum Nanotechnology Laboratory, Konan University, Kobe (Japan)
  • 2. Department of Physics, Konan University, Kobe (Japan)
  • 3. Tsukuba Research Center for Interdisciplinary Material Science, University of Tsukuba (Japan)

Description

We prepared water-soluble CdS nanocrystals (NCs) capped by the poly (ethylene glycol)-b-poly (2-(N,N -dimethylamino)ethyl methacrylate) chain. The photoluminescence (PL) properties of CdS NCs are investigated by time-resolved and temperature-dependent PL spectra. It is found that the PL band of CdS NCs is dominated by two trap state emissions, respectively. Due to the trap state emissions, fluorescent resonance energy transfer from CdS NCs to organic dyes (Texasred) can be observed, which suggests the potential application of trap states of CdS NCs for fabrication of biosensors. (copyright 2009 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssc.200879866

Additional details

Identifiers

DOI
10.1002/pssc.200879866;

Publishing Information

Journal Title
Physica Status Solidi. C, Conferences
Journal Volume
6
Journal Issue
1
Journal Page Range
p. 346-349
ISSN
1610-1634

Conference

Title
8. International conference on excitonic processes in condensed matter
Dates
22-27 Jun 2008
Place
Kyoto (Japan)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
40015844
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION SPECTRA; AQUEOUS SOLUTIONS; CADMIUM SULFIDES; CRYSTALS; DE-EXCITATION; DYES; EMISSION SPECTRA; ENERGY SPECTRA; ENERGY TRANSFER; EXCITED STATES; LIFETIME; NANOSTRUCTURES; PHOTOLUMINESCENCE; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; TIME DEPENDENCE; TRAPS; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA
Descriptors DEC
CADMIUM COMPOUNDS; CHALCOGENIDES; DISPERSIONS; EMISSION; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; HOMOGENEOUS MIXTURES; INORGANIC PHOSPHORS; LUMINESCENCE; MIXTURES; PHOSPHORS; PHOTON EMISSION; SOLUTIONS; SPECTRA; SULFIDES; SULFUR COMPOUNDS; TEMPERATURE RANGE

Optional Information

Notes
With 6 figs., 32 refs.; SICI: 1610-1634(200901)6:1<346::AID-PSSC200879866>3.0.TX;2-H