OLED材料发展-空穴传输材料.doc

OLED材料发展-空穴传输材料
OLED材料发展,空穴传输材料

发布时间:2008-10-01 作者: 来源: 浏览次数: 53 OLED材料发展,空穴传输材料
目前空穴传输材料(Hole transport materials)(本文层电洞传输材料)向提高热稳定向和降低空穴传输层与阳极界面的能级差的方向发展，但离不开triphenylamines(图1)的结构。

日本的Nagoya大学与Nippon Steel Chemical公司合作开发TPD衍生物的电洞传输材料(图2)，虽然改善了TPD易结晶的特性，但使用Alq为电子传输发光体时，元件(ITO/CuPc/HTM/Alq/LiF/Al)的表现并不太理想(表一)。
表一 TPD衍生物的性质
ropaganda Department, district authorities and other members of the working committees to coordinate with, and work together. Various units of the Department to draw up a concrete plan, quickly set up the corresponding study education coordinating group, with strong work force. Second, we must strengthen the inspection supervision. Educational

日本Idemitsu公司开发出triamine的电洞传输材料(图3)，它们具有较高的耐热性。

美国的Xerox公司开发出另一种星放射状的电洞传输材料(图4)，其具有较高热稳定性
(T >120?)。 g
ropaganda Department, district authorities and other members of the working committees to coordinate with, and work together. Various units of the Department to draw up a concrete plan, quickly set up the corresponding study education coordinating group, with strong work force. Second, we must strengthen the inspection supervision. Educational

德国Covion公司则开发一种Spiro型电洞传输材料(图5)，命名为Spiro-NPB及Spiro-TAD，
而其T分别为147?及133?，其在元件的表现较NPB为好(表二)。 g
表二NPB和Spiro-NPB、Spiro-TAD衍生物性质的比较
ropaganda Department, district authorities and other members of the working committees to coordinate with, and work together. Various units of the Department to draw up a concrete plan, quickly set up the corresponding study education coordinating group, with strong work force. Second, we must strengthen the inspection supervision. Educational

Kodak公司所发表一种新型triphenylamine型电洞传输材料(图6)，其是利用金刚烷的构
形的固定来提高其T(T=155?)。 gg

ropaganda Department, district authorities and other members of the working committees to coordinate with, and work together. Various units of the Department to draw up a concrete plan, quickly set up the corresponding study education coordinating group, with strong work force. Second, we must strengthen the inspection supervision. Educational