Intrinsic and extrinsic recombination radiation from undoped and boron-doped diamonds formed by plasma chemical vapor deposition

H. Kawarada, Y. Yokota, A. Hiraki

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

In small particles of chemical vapor deposited (CVD) diamond and polycrystalline thin films composed of the particles, the recombination radiation of free excitons and bound excitons associated with multiple phonons has been observed using cathodoluminescence. The bound excitons are due to neutral acceptors of boron in the diamonds. The cathodoluminescence imaging reveals that the recombinations of free excitons are located at {100} sectors. The crystal perfection and purity is high in {100} sectors compared with {111} sectors formed in the CVD process.

Original languageEnglish
Pages (from-to)1889-1891
Number of pages3
JournalApplied Physics Letters
Volume57
Issue number18
DOIs
Publication statusPublished - 1990 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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