Evidence of hydrogen-boron interactions in diamond from deuterium diffusion and infrared spectroscopy experiments

Citation
J. Chevallier et al., Evidence of hydrogen-boron interactions in diamond from deuterium diffusion and infrared spectroscopy experiments, DIAM RELAT, 8(2-5), 1999, pp. 278-282
Citations number
26
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
DIAMOND AND RELATED MATERIALS
ISSN journal
0925-9635 → ACNP
Volume
8
Issue
2-5
Year of publication
1999
Pages
278 - 282
Database
ISI
SICI code
0925-9635(199903)8:2-5<278:EOHIID>2.0.ZU;2-R
Abstract
We report on the first experimental evidence of hydrogen-boron interactions in boron-doped diamond. Deuterium diffusion studies in homoepitaxial B-dop ed diamond films reveal that hydrogen diffusion is limited by the B concent ration and is characterized by a low effective diffusion activation energy. Infrared spectroscopy experiments show that boron acceptor electronic tran sitions disappear under hydrogenation. These results are consistent with hy drogen ionization and diffusion of fairly mobile H+ which form pairs with B -. (C) 1999 Elsevier Science S.A. All rights reserved.