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采用有机磷光材料三-(2-苯基吡啶)-铱(Ir(PPY)3)与无机材料SiO2复合制成夹层结构器件,用交流电压驱动获得了Ir(PPY)3主峰位于517nm的发光和主峰位于435nm的蓝色发光.通过分析器件的光谱特性,发现这两个发光峰都是源于SiO2中加速电子直接碰撞激发有机层引起的固态阴极射线发光.继实现多种有机聚合物材料和有机小分子材料八羟基喹啉铝(Alq3)的固体阴极射线发光之后,又证实了有机磷光材料的固态阴极射线发光.
The interlayer structure of the devices was fabricated by compounding Ir (PPY) 3 with Ir (PPY) 3, an organic phosphorescent material, and the emission of Ir (PPY) 3 main peak at 517 nm was obtained by AC voltage driving. The main peak located at 435nm blue luminescence.Through the analysis of the spectral characteristics of the device, we found that these two luminescence peaks are derived from accelerated electron direct collision excitation in organic SiO2 layer caused by solid-state cathodoluminescence.After the realization of a variety of organic polymer materials and Solid-state cathode ray emission of organic small molecule material Alq3 also confirms the solid-state cathode ray emission of the organic phosphorescent material.