摘要
The polymer electroluminescence (EL) device with PBD as carriers confinement layer yields bright blue emission having intensity of 300cd/m^(2),in same case the device without PBD layer have luminance only 44 cd/m^(2).The effect of PBD layer on EL characteristic was studied.The results show that only in EL devices with PBD thick-ness over 30nm,the holes are completely confined in emitting layer.The luminance over 2000cd/m^(2) can be obtained by inserting an electron injecting layer between the negative electrode and PED to increase the electron injection.
基金
Supported by the National Natural Science Foundation of China
by Key Research Projection from the National Laboratory of Integrated Optical Electronics of Jilin University
