摘要
以ＢＢＯＴ为电子传输层的聚合物蓝色发光二极管张志林，蒋雪茵，许少鸿（上海科技大学材料系，上海２０１８００）齐藤觉，长友隆男，大本修（日本芝浦工业大学工学部，东京１０８，日本）在前篇文章中［１］，我们报导了以ｐｅｒｙｌｅｎｅ掺杂的ＰＶＣｚ聚合物单层电致...
AbstractBlue emitting electroluminescent diode using polyvenylcarbazole (PVCz) as a hole transporting layer and BBOT as an electron transporting layer has been constructed. A luminance of as high as 680cd/m2 with quantum efficiency more than 0.15% has been obtained. In order improve the crystalization of the BBOT a novel structure has been used. Instead of the pure BBOT of former diode, in the improved diode (type Ⅱ) BBOT and PVCz were co-evaporated with gradual increase of BBOT concentration on the PVCz layer. The brightness could reach 1700cd/m2, but no increase of efficeincy has been observed. A graded junction is supposed to be formed which increases the injected current and the light intensity.
出处
《发光学报》
EI
CAS
CSCD
北大核心
1994年第4期363-365,共3页
Chinese Journal of Luminescence
基金
国家自然科学基金
