Affiliation:
1. College of Information Technology, Jilin Engineering Research Center of Optoelectronic Materials and Devices, Jilin Normal University, Siping 136000, China
Abstract
In this paper, an organic light emitting device is designed, and its fabrication and performance are tested. During the stacking process, the relative thickness ratio of each luminescent layer is changed. It is found that the devices show different luminescent characteristics under
the condition that the total thickness is the same but the thickness ratio of each luminescent layer is different. Among them, x varies by 8, 6, 4 and 2 nm, while y varies by 2, 4, 6 and 8 nm. Four devices are made. It is found that the electroluminescence spectrum of the device
has obvious changes, the color of the device changes significantly from blue to near white, and the brightness and efficiency of the device also have different degrees of change. This paper mainly studies the role of luminescence layer thickness for the brightness in the device. The experimental
results show that when x = 6 nm, y = 4 nm, the maximum brightness of the device is 4238 cd/m2, color coordinate (0.31,0.38).
Publisher
American Scientific Publishers
Subject
Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials