Photoluminescence spectra and dynamics of single CdS nanocrystals studied by scanning near-field optical microscopy

Y. Kanemitsu; M. Ando; K. Matsuda; T. Saiki; C. W. White

doi:10.1002/1521-396X(200204)190:2<537::AID-PSSA537>3.0.CO;2-C

Photoluminescence spectra and dynamics of single CdS nanocrystals studied by scanning near-field optical microscopy

Y. Kanemitsu, M. Ando, K. Matsuda, T. Saiki, C. W. White

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Photoluminescence (PL) spectra and dynamics of hexagonal CdS nanocrystals embedded in Al₂O₃ matrices have been studied by means of a scanning near-field optical microscope at 8 K. The PL spectra of individual CdS nanocrystals show narrow lines with single-exponential decay profiles, although the macroscopic PL spectra measured by conventional optics show a broad band with non-exponential decay profiles. The PL peaks are observed at energies below the lowest free-exciton energy of CdS nanocrystals. The luminescence mechanism of CdS nanocrystals is discussed.

Original language	English
Pages (from-to)	537-540
Number of pages	4
Journal	Physica Status Solidi (A) Applied Research
Volume	190
Issue number	2
DOIs	https://doi.org/10.1002/1521-396X(200204)190:2<537::AID-PSSA537>3.0.CO;2-C
Publication status	Published - 2002 Apr
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1002/1521-396X(200204)190:2<537::AID-PSSA537>3.0.CO;2-C

Cite this

@article{8c4d30cb9a464708bbdb05133f834435,

title = "Photoluminescence spectra and dynamics of single CdS nanocrystals studied by scanning near-field optical microscopy",

abstract = "Photoluminescence (PL) spectra and dynamics of hexagonal CdS nanocrystals embedded in Al2O3 matrices have been studied by means of a scanning near-field optical microscope at 8 K. The PL spectra of individual CdS nanocrystals show narrow lines with single-exponential decay profiles, although the macroscopic PL spectra measured by conventional optics show a broad band with non-exponential decay profiles. The PL peaks are observed at energies below the lowest free-exciton energy of CdS nanocrystals. The luminescence mechanism of CdS nanocrystals is discussed.",

author = "Y. Kanemitsu and M. Ando and K. Matsuda and T. Saiki and White, {C. W.}",

year = "2002",

month = apr,

doi = "10.1002/1521-396X(200204)190:2<537::AID-PSSA537>3.0.CO;2-C",

language = "English",

volume = "190",

pages = "537--540",

journal = "Physica Status Solidi (A) Applied Research",

issn = "0031-8965",

publisher = "Wiley-VCH Verlag",

number = "2",

}

TY - JOUR

T1 - Photoluminescence spectra and dynamics of single CdS nanocrystals studied by scanning near-field optical microscopy

AU - Kanemitsu, Y.

AU - Ando, M.

AU - Matsuda, K.

AU - Saiki, T.

AU - White, C. W.

PY - 2002/4

Y1 - 2002/4

N2 - Photoluminescence (PL) spectra and dynamics of hexagonal CdS nanocrystals embedded in Al2O3 matrices have been studied by means of a scanning near-field optical microscope at 8 K. The PL spectra of individual CdS nanocrystals show narrow lines with single-exponential decay profiles, although the macroscopic PL spectra measured by conventional optics show a broad band with non-exponential decay profiles. The PL peaks are observed at energies below the lowest free-exciton energy of CdS nanocrystals. The luminescence mechanism of CdS nanocrystals is discussed.

AB - Photoluminescence (PL) spectra and dynamics of hexagonal CdS nanocrystals embedded in Al2O3 matrices have been studied by means of a scanning near-field optical microscope at 8 K. The PL spectra of individual CdS nanocrystals show narrow lines with single-exponential decay profiles, although the macroscopic PL spectra measured by conventional optics show a broad band with non-exponential decay profiles. The PL peaks are observed at energies below the lowest free-exciton energy of CdS nanocrystals. The luminescence mechanism of CdS nanocrystals is discussed.

UR - http://www.scopus.com/inward/record.url?scp=0036544432&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036544432&partnerID=8YFLogxK

U2 - 10.1002/1521-396X(200204)190:2<537::AID-PSSA537>3.0.CO;2-C

DO - 10.1002/1521-396X(200204)190:2<537::AID-PSSA537>3.0.CO;2-C

M3 - Article

AN - SCOPUS:0036544432

SN - 0031-8965

VL - 190

SP - 537

EP - 540

JO - Physica Status Solidi (A) Applied Research

JF - Physica Status Solidi (A) Applied Research

IS - 2

ER -

Photoluminescence spectra and dynamics of single CdS nanocrystals studied by scanning near-field optical microscopy

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this