Organic Light Emitting Diodes with an Organic Acceptor/Donor Interface Involved in Hole Injection  

作　　者：曹国华 秦大山 关敏 曹峻松 曾一平 李晋闽 

机构地区：[1]Novel Materials Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, PO Box 912, Beijing 100083

出　　处：《Chinese Physics Letters》2007年第5期1380-1382,共3页中国物理快报（英文版）

摘　　要：Organic light emitting diodes with an interface of organic acceptor 3-, 4-, 9-,10-perylenetetracarboxylic dianhydride （PTCDA） and donor copper phthalocyanine （CuPc） involved in hole injection are fabricated. As compared to the conventional device using a 5 nm CuPc hole injection layer, the device using an interface of 10nm PTCDA and 5 nm CuPc layers shows much lower operating voltage with an increase of about 46% in the maximum power efficiency. The enhanced device performance is attributed to the efficient hole generation at the PTCDA/CuPc interface. This study provides a new way of designing hole injection.Organic light emitting diodes with an interface of organic acceptor 3-, 4-, 9-,10-perylenetetracarboxylic dianhydride （PTCDA） and donor copper phthalocyanine （CuPc） involved in hole injection are fabricated. As compared to the conventional device using a 5 nm CuPc hole injection layer, the device using an interface of 10nm PTCDA and 5 nm CuPc layers shows much lower operating voltage with an increase of about 46% in the maximum power efficiency. The enhanced device performance is attributed to the efficient hole generation at the PTCDA/CuPc interface. This study provides a new way of designing hole injection.

关 键 词：DEVICES EFFICIENCY ALIGNMENT LAYERS 

分 类 号：TN31[电子电信—物理电子学]