Excited donor and acceptor states in zinc telluride |
| |
| Authors: | H Venghaus P J Dean P E Simmonds J C Pfister |
| |
| Institution: | (1) Max-Planck-Institut für Festkörperforschung, Büsnauer Straße 171, D-7000 Stuttgart 80, Germany;(2) Royal Signals and Radar Establishment, Gt. Malvern, Gr. Britain;(3) Present address: University of Wollongong, Wollongong, N.S.W., Australia;(4) Centre d'Etudes Nucleaires de Grenoble, Grenoble, France |
| |
| Abstract: | Excited shallow donor and acceptor states are observed in excitation spectra of donoracceptor pair luminescence in ZnTe. The experiments yield a donor ionization energyE
D =18.3±0.3 meV, and from the Li acceptor 2P
3/2, 2P
5/2(
8), and 2P
5/2(
7) states valence band parametersµ=0.60±0.10 and =0.22±0.05. The latter exceeds values derived from other experiments and indicates considerable nonspherical perturbations associated with this acceptor requiring an extension of existing theories for shallow acceptor states. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
