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Titolo:
Time-resolved high-resolution transmission electron microscopy and high-angle annular dark field scanning transmission electron microscopy of metal-mediated crystallization of amorphous germanium films
Autore:
Tanaka, N; Kawahara, M;
Indirizzi:
Nagoya Univ, Grad Sch Engn, Dept Appl Phys, Chikusa Ku, Nagoya, Aichi 4648603, Japan Nagoya Univ Nagoya Aichi Japan 4648603 a Ku, Nagoya, Aichi 4648603, Japan
Titolo Testata:
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
fascicolo: 1-2, volume: 312, anno: 2001,
pagine: 25 - 30
SICI:
0921-5093(20010815)312:1-2<25:THTEMA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
GOLD; STEM;
Keywords:
metal-mediated crystallization; amorphous germanium films; time-resolved high-resolution transmission electron microscopy; fractal patterns; melted gold clusters; high-angle annular dark field scanning transmission electron microscopy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Tanaka, N Nagoya Univ, Grad Sch Engn, Dept Appl Phys, Chikusa Ku, Nagoya, Aichi 4648603, Japan Nagoya Univ Nagoya Aichi Japan 4648603 ya, Aichi 4648603, Japan
Citazione:
N. Tanaka e M. Kawahara, "Time-resolved high-resolution transmission electron microscopy and high-angle annular dark field scanning transmission electron microscopy of metal-mediated crystallization of amorphous germanium films", MAT SCI E A, 312(1-2), 2001, pp. 25-30

Abstract

Metal mediated crystallization of amorphous germanium (a-Ge) films was studied through 'in-situ' heating by time-resolved high-resolution transmission electron microscopy (HRTEM) and high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM), mainly on a-Ge films with nanometer-sized gold clusters on the surfaces. It was revealed from the dynamicHRTEM observations that the interface between crystalline gold and a-Ge was a bit melted due to alloying even at 70 degreesC and liquid-like gold-rich alloys migrate on the a-Ge films to initiate the crystallization, which was confirmed also through the static observations with HAADF-STEM. (C) 2001Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 01:01:33