Beschreibung:
<jats:p>
The thermal cracking effects of CeCl<jats:sub>3</jats:sub> dopant on the blue
electroluminescent (EL) properties in SrGa<jats:sub>2</jats:sub>S<jats:sub>4</jats:sub>:Ce thin films
grown by molecular beam epitaxy (MBE) system were
investigated. The cracking enhanced the Ce<jats:sup>3+</jats:sup> ion density in
SrGa<jats:sub>2</jats:sub>S<jats:sub>4</jats:sub>:Ce film without degrading the crystallinity. The
maximum EL luminance was thereby increased to 85 cd/m<jats:sup>2</jats:sup> at a
driving frequency of 1 kHz. The chromaticity of the EL was also
maintained in the pure blue region.
</jats:p>