Electrophosphorescent Organic Light-Emitting Diodes：Materials and Devices

• Main Author: 施秉彝
• Other Authors: 許慶豐
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/17854759910054095689

碩士 === 國立交通大學 === 應用化學系所 === 93 === This thesis is divided into two parts. In part A, we apply a neutral red phosphorescent ruthenium complex in PLED devices. In part B, We report the synthesis and characterization of two new host materials that can be used in blue phosphorescent OLED devices. We also report the fabrication and performance of the devices based on these materials. In part A, we doped a new neutral red Ru complex into either PVK or PF host and fabricated PLED devices based on these blends. We found that this Ru material performs pretty well in both PVK and PF systems. Furthermore, we introduced charge-transport materials/groups into PVK and PF system to improve the device efficiency and brightness. In part B, we have synthesized and characterized two novel host materials with rigid fluorene groups attached at the 3,6 position of a carbazole molecule. The fluorene groups can improve the thermal stability of carbazole while retain the higher T1 (lowest triplet excited state) energy.