Electrical characterization ofp‐type ZnSe:N and Zn1−xMgxSySe1−y:N thin films

Autor: Kevin W. Haberern, P. M. Mensz, C. Ponzoni, S. Herko, J. M. Gaines
Rok vydání: 1993
Předmět:
Zdroj: Applied Physics Letters. 63:2800-2802
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.110339
Popis: Differential van der Pauw–Hall effect and resistivity measurements have been performed to determine the concentration and mobility of free holes in nitrogen doped ZnSe and Zn1−xMgxSySe1−y thin films. Hall data taken between 120 and 300 K, with magnetic fields up to 4 kG yielded an activation energy of the nitrogen acceptors in ZnSe:N of 104 meV. Donor compensation in the ZnSe:N samples was negligible. Compared with ZnSe:N, samples of Zn1−xMgxSySe1−y:N, exhibited a significantly lower value of room‐temperature mobility of holes, and fast‐carrier freeze‐out at relatively high temperature, approximately T=200 K.
Databáze: OpenAIRE