中文摘要：

制备了以Ag／SAM／m-MTDATA为复合空穴注入层的NPB／Alq3双层异质结发光器件，研究了器件的性能并与传统的器件进行了对比。考察了银膜厚度的变化对器件性能的影响。研究了光谱窄化以及微腔效应对器件的影响。研究结果表明：在ITO表面制备4．丌P自组装单分子膜修饰的5nm厚的金属银膜，可以在保持阳极透明性的基础上，增强空穴的注入，改善界面的形貌，进而提高器件性能。制备的ITO／Ag／SAM／ITI-MTDATA／NPB／Alq3／LiF／Al器件的启亮电压为4V，最大电流效率为6．9cd／A，最大亮度为34680cd／m。（12V）；优于以ITO为阳极的对比器件（25300cd／m2@12V）。

英文摘要：

A double layer NPB/Alq3 heterojunction organic light emitting device using Ag/4-FTP （SAM）/m-MTDATA as combined hole-injecting layer was fabricated. The device performance was studied and compared with the control device. The effect of the Ag layer thickness on the device per- formanee is also investigated. The variation of the spectral narrowing and intensity enhancement can be explained with microcavity effects. The results revealed that indium tin oxide （ITO） anode modi- fied with Ag（5 nm）/4-FTP（SAM） demonstrated good transparency, enhanced hole injection ability and smooth interface morphology, which result in an improved device performance. The highest lu- minance of 34 680 cd/m^2 at 12 V and a luminous efficiency of 6.9 cd/A were achieved for the de- vice with the structure of ITO/Ag/4-FTP （SAM）/m-MTDATA/NPB/Alq3/LiF/A1. However, the control device showed 25 300 cd/m^2 at the same bias.