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Titolo:
Homogeneous linewidths and confined-phonon sidebands of the resonant exciton luminescence of CuCl quantum dots - art. no. 195317
Autore:
Edamatsu, K; Itoh, T; Matsuda, K; Saikan, S;
Indirizzi:
Osaka Univ, Grad Sch Engn Sci, Div Mat Phys, Toyonaka, Osaka 5608531, Japan Osaka Univ Toyonaka Osaka Japan 5608531 s, Toyonaka, Osaka 5608531, Japan Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan Tohoku Univ Sendai Miyagi Japan 9808578 ys, Sendai, Miyagi 9808578, Japan
Titolo Testata:
PHYSICAL REVIEW B
fascicolo: 19, volume: 6419, anno: 2001,
pagine: 5317 -
SICI:
0163-1829(20011115)6419:19<5317:HLACSO>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEMICONDUCTOR NANOCRYSTALS; OPTICAL-SPECTRUM; RAMAN-SCATTERING; MICROCRYSTALS; MATRIX; STATE; SIZE; HEAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Edamatsu, K Osaka Univ, Grad Sch Engn Sci, Div Mat Phys, Toyonaka, Osaka 5608531, Japan Osaka Univ Toyonaka Osaka Japan 5608531 Osaka 5608531, Japan
Citazione:
K. Edamatsu et al., "Homogeneous linewidths and confined-phonon sidebands of the resonant exciton luminescence of CuCl quantum dots - art. no. 195317", PHYS REV B, 6419(19), 2001, pp. 5317

Abstract

We investigated the resonant luminescence spectra of CuCl quantum dots in NaCl and glass matrices with high spectral resolution, The resonant luminescence consists of a sharp zero-phonon line accompanied by Stokes and anti-Stokes sidebands. We confirmed that the sidebands originate from lattice vibrations confined in the quantum dots. The observed ultrasharp homogeneous width of the zero-phonon line indicates a very long phase-relaxation time ofthe confined excitons at low temperature. The temperature dependence of the homogeneous width is explained by a two-phonon Raman process associated with the confined phonons.

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Documento generato il 01/12/20 alle ore 01:01:36