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Titolo:
Preparation and evaluation of nitrogen-terminated silicon nanoparticles: laser annealing effect
Autore:
Choo, CK; Sakamoto, T; Tohara, M; Tanaka, K; Nakata, R; Okuyama, N;
Indirizzi:
Univ Electrocommun, Grad Sch Elect Engn, Tokyo 1828585, Japan Univ Electrocommun Tokyo Japan 1828585 Elect Engn, Tokyo 1828585, Japan Univ Electrocommun, Dept Human Commun, Tokyo 1828585, Japan Univ Electrocommun Tokyo Japan 1828585 uman Commun, Tokyo 1828585, Japan Univ Electrocommun, Dept Elect Engn, Tokyo 1828585, Japan Univ Electrocommun Tokyo Japan 1828585 Elect Engn, Tokyo 1828585, Japan
Titolo Testata:
SURFACE SCIENCE
fascicolo: 2-3, volume: 445, anno: 2000,
pagine: 480 - 487
SICI:
0039-6028(20000120)445:2-3<480:PAEONS>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTRONIC-STRUCTURES; NH3 ADSORPTION; CLUSTERS; FILMS; ABSORPTION; LUMINESCENCE; DISSOCIATION; CHEMISTRY; SURFACE; SI(111);
Keywords:
laser ablation; laser annealing; N-termination; silicon nanoparticles; ultraviolet photoelectron spectra (UPS); X-ray photoelectron spectra (XPS); zeolite;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Tanaka, K Univ Electrocommun, Grad Sch Elect Engn, Tokyo 1828585, Japan Univ Electrocommun Tokyo Japan 1828585 n, Tokyo 1828585, Japan
Citazione:
C.K. Choo et al., "Preparation and evaluation of nitrogen-terminated silicon nanoparticles: laser annealing effect", SURF SCI, 445(2-3), 2000, pp. 480-487

Abstract

Nitrogen-terminated silicon nanoparticles were synthesized on AFI AlPO4-5 zeolite by pulsed laser ablation of silicon target in the presence of 1.33 x 10(-5) Pa of ammonia and were annealed by multiple laser shots at 532 nm. The samples were characterized by X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy and UV-vis absorption measurements. The results indicate that they are composed of nonstoichiometric silicon nitride nanoparticles as well as silicon species with dangling bonds. NHx (x = 1,2)polyhydride species are dissociated by pulsed laser annealing, which showsthe improvement of the silicon and silicon nitride crystallinities. It is suggested that the nanoparticles will agglomerate as clusters after laser annealing. According to the Tauc plot obtained from UV-vis absorption data, a blue shift of band gap energy from bulk silicon was observed. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 15/07/20 alle ore 20:31:54