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Homogeneity of Thermally-Annealed Lightly Fe-Doped SI InP

  • M. Avella (a1), J. Jimenez (a1), R. Fornari (a2) and E. De La puente (a1)

Lightly Fe-doped semiconducting InP samples have been rendered semi-insulating by thermal annealing and subsequently studied by Hall effect, Scanning Photocurrent (SPC) and Scanning Photoluminescence (SPL). Hall measurement shows that the semi-insulating conversion is generally associated to an improvement of the mobility. SPL and SPC measurements show that the distribution of both electrically active iron and compensation ratio is homogeneous after annealing. The cooling rate was seen to influence the compensation ratio.

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