Add time:07/23/2019         Source:sciencedirect.com

Dysprosium and ytterbium monophosphides have been prepared by the solid state reaction. The optical and electrical properties have been studied. Evidence that DyP and YbP are semiconductors has been obtained from the study of the absorption spectrum, the negative temperature coefficient of resistance and the rectifying effect. Their energy gaps are determined as 1.15 eV for DyP and 1.30 eV for YbP, electric conduction type is n-type, resistivities are about 10−2 ohm cm and Hall mobility is 8.5–80 cm2/Vs. The p-n junction is formed on the LnP/Si.

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