Synthesis and Applications of Novel Blue Dopants for Organic Light Emitting Devices

• Main Authors: Chia Ming Chang, 張家銘
• Other Authors: Chin Shin Chen
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/84669957588484635479

碩士 === 國立交通大學 === 應用化學系所 === 93 === We have synthesized a highly efficient blue dopant based on the amino-substituted distyrylarylene (DSA-amine) fluorescent dyes. These fluorescent dyes have good thermal properties.The Tg of 7-DSA-Ph, 7-DSA-biPh and 7-DSA-triPh are 120℃, 131℃ and 137℃. Doped 7-DSA-Ph in the stable blue host material 2-methyl-9,10-di(2-naphthyl)anthracene (MADN), it achieved a luminance yield of 9.02 cd/A at 20 mA/cm2 with a CIEx,y color coordinate of [0.16, 0.28] The maximum external quantum efficiency of this device approaches the theoretical limit of 4.7% . Doped 7-DSA-biPh in MADN, it achieved a luminance yield of 6.4 cd/A at 20 mA/cm2 with a CIEx,y color coordinate of [0.15, 0.24] The maximum external quantum efficiency of this device approaches the theoretical limit of 3.73% . Doped 7-DSA-triPh in MADN, it achieved a luminance yield of 3.5cd/A at 20 mA/cm2 with a CIEx,y color coordinate of [0.16, 0.17] The maximum external quantum efficiency of this device approaches the theoretical limit of 3.42 % .