Localized States of Cs3Sb Photocathode Materials in Valency Control Experiments

概要

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Thermoelectric properties are investigated in term of the effect of impurity doping in Cs–Sb photocathodes. The Cs–Sb photocathode is known to incorporate Cs vacancies, which lead to a p-type conductivity. To control the conductivity of the Cs–Sb photocathode, we have doped divalent alkaline-earth atoms, and measured the conductivity type. The result is contradictory to the conventional concept, and is conveniently interpreted as indicating that the Cs–Sb photocathode does not have a single-crystalline band structure but an amorphous like one.
INSTITUTE OF PURE AND APPLIED PHYSICSの論文
1989-11-20