作　　者： ;

机构地区： 暨南大学生命科学技术学院化学系

出　　处： 《发光学报》 2000年第4期363-368,共6页

摘　　要： Langmuir Blodgett(LB)膜具有超薄、均匀、取向和厚度可控及在分子水平上可任意组装等特点 ,以LB膜为发光层所制备的电致发光 (EL)器件 ,发光层的组成和厚度精确可控 ,制备条件温和 ,给发光层的制备开辟了一条新途径。论述用作EL器件的发光层、电子传输材料 (ETL)和空穴传输层 (HTL)的LB膜材料。并以 8 羟基喹啉的两亲配合物LB膜为重点 ,介绍了LB膜的层数、沉积压等制膜参数对EL器件性能的影响 ,讨论了LB膜EL器件的发光机理 ,最后 。 Langmuir Blodgett(LB)film technique makes it possible to prepare organic functional ultrathin films with a controlled thickness at a molecular size and well defined molecular orientation.Therefore,if any electroluminescent(EL)materials can be incorporated in LB films,the films will be fabricated more conveniently than by general vacuum deposited technique and may have potential applications in molecular electronic devices.In the EL devices with LB films as emitting layer,the constitute and thickness of the emitting layer can be exactly controlled and this layer can be fabricated at room temperature and at atmospheric pressure.This paper reviews the LB films materials used as the emitting layers, hole transporting materials and electron transporting materials in EL devices.The influence of the number of the layers of LB films and the deposited surface pressure on the I V characteristics,EL intensity,as well as break down voltage of the EL devices are presented by taking amphiphilic 8 hydroxyquinoline complexes as examples.The existent problems and further development of EL devices with LB films as emitter are commented as a conclusion remark.

关 键 词： 膜 电致发光 器件

领　　域： [电子电信] [理学] [理学]