Cesium and bromine doping into hexagonal boron nitride
Using a two-zone method, the possible formation of an intercalation compound of hexagonal boron nitride (BN) with Cs and Br/sub 2/ was investigated. Only a few percent weight increase was observed by doping BN with Cs and Br/sub 2/. The electron paramagnetic resonance (EPR) signal was significantly modified by Cs doping, which is attributed to the reaction between the Cs atoms and spin resonance centers (N vacancies) in BN; no change in the EPR spectra was observed with Br/sub 2/ doping. However, the deep blue colored Cs--BN complex reported by Mugiya and co-workers was not obtained with the two-zone method. Though no evidence of systematic intercalation reaction in BN was observed in contrast to graphite host materials, intercalation islands induced by the introduction of Cs atoms were suggested by the transmission electron microscopy (TEM) observations.
- Research Organization:
- Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- OSTI ID:
- 5144577
- Journal Information:
- J. Mat. Res.; (United States), Journal Name: J. Mat. Res.; (United States) Vol. 1:5; ISSN JMREE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
BORON COMPOUNDS
BORON NITRIDES
CHLORINE
CLATHRATES
CRYSTAL DOPING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ELECTRON SPIN RESONANCE
ELEMENTS
HALOGENS
HEXAGONAL LATTICES
MAGNETIC RESONANCE
MICROSCOPY
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
PNICTIDES
POWDERS
RESONANCE
TRANSMISSION ELECTRON MICROSCOPY