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Titolo:
3D morphology of II-VI semiconductor nanocrystals grown in inverted micelles
Autore:
Ricolleau, C; Audinet, L; Gandais, M; Gacoin, T; Boilot, JP;
Indirizzi:
Univ Paris 06, Lab Mineral Cristallog, F-75252 Paris 05, France Univ Paris06 Paris France 05 neral Cristallog, F-75252 Paris 05, France Univ Paris 07, CNRS UMR 7590, F-75252 Paris, France Univ Paris 07 Paris France F-75252 CNRS UMR 7590, F-75252 Paris, France Ecole Polytech, Phys Mat Condensee Lab, Grp Chim Solide, F-91128 Palaiseau, Ecole Polytech Palaiseau France F-91128 Chim Solide, F-91128 Palaiseau,
Titolo Testata:
JOURNAL OF CRYSTAL GROWTH
fascicolo: 4, volume: 203, anno: 1999,
pagine: 486 - 499
SICI:
0022-0248(199906)203:4<486:3MOISN>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSMISSION ELECTRON-MICROSCOPY; CD(S,SE) QUANTUM DOTS; GLASSES; HABIT; SIZE; CDSE;
Keywords:
CdS; nanocrystals; 3D morphology; HRTEM; structure;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Ricolleau, C Univcearis 06, Lab Mineral Cristallog, 4 Pl Jussieu, F-75252 Paris 05, Fran Univ Paris 06 4 Pl Jussieu Paris France 05 52 Paris 05, Fran
Citazione:
C. Ricolleau et al., "3D morphology of II-VI semiconductor nanocrystals grown in inverted micelles", J CRYST GR, 203(4), 1999, pp. 486-499

Abstract

Colloidal CdS nanocrystals have been elaborated by using a technique of the chemistry of colloids. Their mean size range between 3 and 10 nm. The 3D morphology of the nanocrystals has been studied by using high-resolution transmission electron microscopy (HRTEM). The method is based on the measurement of I-g,I-hr(r), the intensity of a family of g lattice fringes as a function of the position r(x,y) in the high-resolution electron micrograph, assuming that I-g,I-hr increases monotonously as a function of the thickness t of the crystal along the electron beam. The range of thickness for the validity of the method has been calculated in the frame of the dynamical theory of electron diffraction. CdS colloids are mainly in the cubic structure of blends-type (B) and a few of them are in the hexagonal structure of wurtzite-type (W). In the cubic structure of B-type, the morphologies are foundto be the octahedron and tetrahedron. The hexagonal structure of W-type, have a platelet-like morphology with well-developed basal faces. (C) 1999 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 02/07/20 alle ore 21:09:40