New limb structured blue light emitting materials for OLEDs

作者：Kim Ran; Yoo Seung Jin; Kim Eun Kyung; Yu Han Sung; Shin Sung Chul; Lee Sang Kyung; Kwon Soon Ki; Kim Yun Hi^*

来源：Dyes and Pigments, 2012, 95(2): 384-391.

DOI：10.1016/j.dyepig.2012.05.002

• Blue OLED
• Limb structure
• Anthracene derivatives
• Quantum efficiency
• Color purity
• Non-coplanar structure

We designed new three limb structured anthracene derivatives, PNA, NNA and FNA, which are composed of an anthracene core and naphthalene units at the 9,10-positions of anthracene and phenyl, naphthalene and fluorene units at the 2,3-positons of anthracene. The effect of the introduced limbs on the 2,3,9,10-positions of anthracene was studied. The doped EL devices using ADN as a host and (3% PNA or NNA or FNA) as a dopant showed similar maximum quantum efficiency of 3.9%-4.3% with high color purity of (0.15, 0.13).

• 出版日期2012-11