ZnO纳米棒在聚[2-甲氧基-5-(2-乙基-己氧基)-1，4-苯撑乙烯撑]固态阴极射线发光器件中的应用研究

The applications of ZnO nanorods in poly[2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylene vinylene]solid state cathodoluminescence device

利用ZnO纳米棒阵列场发射电极,以SiO2做为电子加速层制备了固态阴极射线器件,发光层为聚[2-甲氧基-5-(2-乙基-己氧基)-1,4-苯撑乙烯撑](MEH-PPV),在交流驱动下得到了MEH-PPV的固态阴极射线发光,探测到了长波峰和短波峰的发射,并和无电子加速层的器件做了比较,证明混合激发模式下的器件在长波长的发光亮度更大.

A solid state cathodoluminescence （SSCL） device in which ZnO nanorods act as the field emission electrode and SiO2 as the electronic accelerating layer and poly [2-methoxy-5-（2-ethyl-hexyloxy）-1, 4-phenylene vinylene] （MEH-PPV） polymer as the luminescent layer is first designed. Under AC bias, SSCL of MEH-PPV is realized. The 1 peaks are located at 580 nm and 450 nm, respectively. Compared with the device without the accelerating layer, we find that mixed-excited mode device can achieve greater brightness at long wavelength.