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Issue 8, 2008
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Efficient blue phosphorescent host through nonbonded conformational locking interactions

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Abstract

We developed a new host material TCTEB with a conformationally homogeneous, sterically bulky structure due to nonbonded interactions between adjacent methylene groups. The host presented good thermal stability (Tg = 122 °C and Td = 321 °C) and high triplet energy (3.0 eV). The maximum quantum efficiency, current efficiency and power efficiency of the OLED device using the TCTEB host were 8.5%, 13.7 cd A−1, and 11.3 lm W−1, respectively, when doped with 8 wt% FIrpic.

Graphical abstract: Efficient blue phosphorescent host through nonbonded conformational locking interactions

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Article information


Submitted
14 Sep 2007
Accepted
06 Feb 2008
First published
13 Mar 2008

New J. Chem., 2008,32, 1368-1372
Article type
Paper

Efficient blue phosphorescent host through nonbonded conformational locking interactions

J. Kwon, T. Kwon, H. S. Cho, M. K. Kim, I. Shin, D. Shin, S. J. Park and J. Hong, New J. Chem., 2008, 32, 1368
DOI: 10.1039/B714231E

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