Electrical properties and non-stoichiometry in ZnO single crystals

The electrical conductivity and the Hall effect are investigated in the temperature region from 77 to 1000 K on undoped ZnO single crystals grown by vapour phase transport. The growth conditions were systematically altered to get crystals with definite non‐stoichiometry. The electrical properties are related to these growth conditions. The analysis of the Hall data yields the phase boundary ZnO/Zn and a formation enthalpy of 1.5 eV for the dominant native donor. This donor is suggested to be the oxygen vacancy. The Hall mobility is analysed with regard of new aspects giving a smaller anisotropy than in earlier analyses.

Английский

Physica Status Solidi. – 1981. – Vol. 66, № 2. – P. 635–648.