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Titolo:
In situ EXAFS, X-ray diffraction and photoluminescence for high-pressure studies
Autore:
Sapelkin, AV; Bayliss, SC; Russell, D; Clark, SM; Dent, AJ;
Indirizzi:
De Montfort Univ, Solid State Res Ctr, Leicester LE1 9BH, Leics, England De Montfort Univ Leicester Leics England LE1 9BH LE1 9BH, Leics, England SERC, Daresbury Lab, CLRC, Warrington WA4 4AD, Cheshire, England SERC Warrington Cheshire England WA4 4AD ngton WA4 4AD, Cheshire, England
Titolo Testata:
JOURNAL OF SYNCHROTRON RADIATION
, volume: 7, anno: 2000,
parte:, 4
pagine: 257 - 261
SICI:
0909-0495(200007)7:<257:ISEXDA>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
GALLIUM NITRIDE; ABSORPTION SPECTROSCOPY; GAN; SCATTERING; BULK; GASB;
Keywords:
EXAFS; high pressures; X-ray diffraction; photoluminescence;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Sapelkin, AV De Montfort Univ, Solid State Res Ctr, Leicester LE1 9BH, Leics, England De Montfort Univ Leicester Leics England LE1 9BH cs, England
Citazione:
A.V. Sapelkin et al., "In situ EXAFS, X-ray diffraction and photoluminescence for high-pressure studies", J SYNCHROTR, 7, 2000, pp. 257-261

Abstract

A new facility for simultaneous extended X-ray absorption of fine structure (EXAFS), X-ray diffraction and photoluminescence measurements under high pressures has been developed for use on station 9.3 at the Daresbury Laboratory Synchrotron Radiation Source. This high-pressure facility can be used at any suitable beamline at a synchrotron source. Full remote operation of the rig allows simultaneous collection of optical and structural data whilevarying the pressure. The set-up is very flexible and can be tailored for a particular experiment, such as time- or temperature-dependent measurements. A new approach to the collection of high-pressure EXAFS data is also presented. The approach significantly shortens the experimental times and allows a dramatic increase in the quality of EXAFS data collected. It also opens up the possibility for EXAFS data collection at any pressure which can begenerated using a diamond cell. The high quality of data collected is demonstrated with a GaN case study. Particular attention will be paid to the use of energy-dispersive EXAFS and quick-scanning EXAFS techniques under pressure.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 00:46:14