以陶瓷厚膜为绝缘层的红色ZnSvSm,Cl电致发光器件

ZnS∶Sm, Cl Red Thin Film Electroluminescent Devices with Ceramic Thick Film as Insulator Layer

报道采用高介电常数的陶瓷厚膜作绝缘层、ＺｎＳｖＳｍ ， Ｃｌ作为发光层的红色薄膜电致发光器件。测量了器件的电致发光光谱和亮度电压曲线， 研究了发光机理和效率电压等特性。制备的器件在市电频率驱动下１６ Ｖ启亮， 最大亮度为１８．４ ｃｄ／ｍ ２， 最大效率为０．０６ ｌｍ ／Ｗ。

Red ZnS∶Sm, Cl thin film electroluminescent devices with ceramic thick film as insulator layer have been manufactured. The transparent electrode is ZnO doped with Al made by sputtering and the emitting layer is ZnS∶Sm, Cl made by electric evaporation method. The electroluminescent spectrum of ceramic subsrrate thin film electroluminescent (CSTFEL) device has been measured. The dependence of brightness on voltage was measured and the dependence of efficiency on voltage was calculated. The CSTFEL device was driven under 50 Hz and the maximum luminance is 18.4 cd/m 2 and the maximum efficiency is 0.06 lm/W.