Jpn. J. Appl. Phys. 27 (1988) pp. 1708-1711  |Next Article|  |Table of Contents|
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Thermal Donor Formation and the Effect of Copper Contamination in Oxygen-Doped Germanium

Noboru Fukuoka, Mitsuru Tabuchi and Koji Matsuda¹

(Received May 11, 1988; accepted for publication July 23, 1988)

The structure of thermal donors in germanium was studied in oxygen-doped crystal (9×10¹⁶ oxygens/cm³). From the reduction of interstitial oxygen concentration after annealing, it was found that a single thermal donor contains three oxygen atoms on average. The diffusion of copper atoms from the surface in oxygen-doped germanium crystal was studied through electron irradiation effects. It was revealed that a copper atom migrates as an interstitial atom and it occupies a substitutional site at about 450°C.

URL: http://jjap.jsap.jp/link?JJAP/27/1708/
DOI: 10.1143/JJAP.27.1708

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