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Proceedings Paper

Cathodoluminescence of exciton recombinations and vibronic color centers in undoped, boron-doped, and nitrogen-doped CVD diamonds
Author(s): Hiroshi Kawarada; Yoshihiro Yokota; T. Sogi; Hideto Matsuyama; Akio Hiraki
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Paper Abstract

A variety of cathodoluminescence depending on crystal perfection impurities and defects such as vacancies and interstitials have been investigated in undoped boron-doped and nitrogen-doped CVD diamonds. The free exciton recombination radiation is sensitive to the perfection and purity of diamonds and is located in C100sectors. The bound exciton recombination radiation depends on the amount of boron in diamonds. The 5RL center is strong in the undoped diamonds after neutron irradiation and supposed to be related to intrinsic defects such as seif-interstitials. The 2 . 16 eV and the 3 . 19 eV centers are observed prominently in the nitrogen-doped diamonds after electron irradiation and subsequent annealing. The origins of the 2. 16 center (nitrogen-vacancy complex) are located in sectors. 1.

Paper Details

Date Published: 1 December 1990
PDF: 8 pages
Proc. SPIE 1325, Diamond Optics III, (1 December 1990); doi: 10.1117/12.22454
Show Author Affiliations
Hiroshi Kawarada, Osaka Univ. (Japan)
Yoshihiro Yokota, Osaka Univ. (Japan)
T. Sogi, Osaka Univ. (Japan)
Hideto Matsuyama, Osaka Univ. (Japan)
Akio Hiraki, Osaka Univ. (Japan)


Published in SPIE Proceedings Vol. 1325:
Diamond Optics III
Albert Feldman; Sandor Holly, Editor(s)

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