MEH-PPV固态阴极射线发光动力学研究  

A study on luminescence dynamics of solid-state cathodoluminescence of MEH-PPV

作　　者：曲崇[1] 徐征[1] 滕枫[1] 钱磊[1] 于文革[1] 权善玉[1] 徐叙瑢[1] 

机构地区：[1]北京交通大学光电子技术研究所

出　　处：《物理学报》2004年第12期4387-4391,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10 3 740 0 1);中国博士后科学基金(批准号:2 0 0 3 0 3 43 2 4);国家重点基础研究发展规划(批准号:2 0 0 3CB3 14 70 7);高等学校博士学科点专项科研基金(批准号:20020 004004);北京市自然科学基金(批准号:2 0 3 2 0 15 );北京交通大学攀登基金(批准号:PD2 3 7)资助的课题~~

摘　　要：在分层优化基础上 ,用MEH PPV和SiO2 复合制成夹层结构器件 ,在交流电压的三个区域下 ,表现出不同的发光 .在电压较低时得到了红色发光 ,电压较高时得到了蓝色发光 ,电压的中间区域为两种发光的叠加 .这两种发光都是源于SiO2 中加速电子直接碰撞激发有机发光层而引起的固态阴极射线发光 .通过对器件光学特性的研究 。Based on the layer-optimized method,the devices of sandwiched structure are produced by compounding MEH-PPV and SiO 2 In three different voltage regions of alternating current,the devices luminesce differently. When the voltage is low,red emission is obtained; and if the voltage is high,blue emission is acquired. The superposition of the above two emissions is obtained when the voltage is moderate. The red or blue emission belongs to the solid-state cathodoluminescence,it originates from the accelerated electrons in SiO 2,which bombard the organic layers. By the study on the optic characteristics of the devices,the scopes and regulations of spectra shift are analyzed.

关 键 词：阴极射线发光 有机发光 MEH-PPV 光层 碰撞激发 器件 蓝色发光 固态 SIO2 光谱 

分 类 号：O462[理学—电子物理学]