Cathodoluminescence of brown diamonds as observed by transmission electron microscopy

R. J. Graham, P R Buseck

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Cathodoluminescing features in brown diamonds correlate with the crystalline microstructure as observed by transmission electron microscopy. We identified distinctive emissions at 415·3, 425, 491·3 and 525 nm. The first two correlate with the so-called N3 and band-A emissions, while the last correlates with what is called a strain-broadened H3 band. The N3 emission is associated with stacking faults on (111) planes. H3 emission is correlated with straight dislocations and dislocation tangles. The 491·3 nm and H3 emissions suggest that the diamonds have undergone severe plastic deformation, which may have also contributed to the apparent high concentrations of the N3 defects.

Original languageEnglish (US)
Pages (from-to)1177-1185
Number of pages9
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume70
Issue number6
DOIs
StatePublished - Dec 1994

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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