Crystal Research and Technology
Cryst. Res. Technol. 37 (2002) 340 - Abstract -

I. V. Kityk, A. Migalska-Zalas, J. Ebothe*, A. Elchichou*, M. Addou**, A. Bougrine**, A. Ka. Chouane**

Institute of Physics WSP, Al. Armii Krajowej 13/15, Czêstochowa, Poland
*Université de Reims, UFR Sciences, Unite de Thermique et d’Analyse Physique –LMET, UPRES EA n’2061, 21 rue Clement Ader, 51865 Reims, Cedex 02, France
**Laboratoire d’Optoelectronique et de Physico-Chimie des Materiaux Université Ibn Tofail, Faculté des Sciences, BP 133, Kenitra, Maroc

Anomalously Large Pockels Effect in ZnO-F Single Crystalline Films Deposited on Bare Glass

Large linear electrooptics (the Pockels effect) of up to 17 pm/V for the wavelength 435 nm has been observed in ZnO films doped by fluorine and deposited on bare glass. In order to describe the phenomenon observed, a complex approach, including self-consistent band structure calculations together with the appropriate molecular dynamics simulations of the interfaces, was applied. The origin of the effect observed is linked to substantial charge density non-centrosymmetry between the wurtzite-like crystalline films and the bare glass substrate, as well as to additional charge density polarisation caused by the fluorine.

Keywords: large electrooptics, ZnO, crystalline films, glass


The full text of this paper in pdf-Format:

If you came directly to this page, click this symbol to go to the homepage of CRT.