| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9776446 | Synthetic Metals | 2005 | 4 Pages |
Abstract
A series of polyfluorene derivatives endcapped by 0.1-2Â mol% 1,8-naphthalimide dye were synthesized by Yamamoto coupling reaction. The resulting polymers show the promising electroluminescence (EL) performance with emission predominantly from the 1,8-naphthalimide unit due to energy transfer and charge trapping from polyfluorene backbone to 1,8-naphthalimide dye. Single-layer devices were fabricated with a device configuration of ITO/PEDOT/polymer/Ca/Al. Among all the devices tested, the device of NFP50 exhibited the current efficiency of 7.40Â cd/A, the power efficiency of 2.89Â lm/W and the maximum brightness of 19280Â cd/m2, about 30 times more efficient than that of polyfluorene without endcapping groups.
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Authors
Jianxin Cao, Quanguo Zhou, Yanxiang Cheng, Yanhou Geng, Lixiang Wang, Dongge Ma, Xiabin Jing, Fosong Wang,