화학공학소재연구정보센터
Journal of Crystal Growth, Vol.268, No.3-4, 602-606, 2004
Nanoscale cube-on-cube growth and characterization of SrS : Eu, Sm optical memory material
We report the growth and characterization of SrS codoped with europium and samarium ions. The material was grown on (001) MgO substrate, using solid-source molecular-beam epitaxy technique. We show that the film epitaxial planes conserved the substrate surface symmetry-cubic. X-ray diffraction results establish the epitaxial relationship as cube-on-cube (001)(SrS) parallel to(001)(MgO) with [100](SrS) parallel to[100](MgO) for growth temperature between 400degreesC and 600degreesC. Infrared-stimulated luminescence with a peak at 612 nm is observed at room temperature in SrS: Eu, Sm which is stimulated with infrared light after irradiation with visible light. (C) 2004 Elsevier B.V. All rights reserved.