Hole-injection enhancement of top-emissive polymer light-emitting diodes by P3HT/FNAB modification of Ag anode

Lai Wan Chong, Ying Nien Chou, Yuh Lang Lee, Ten Chin Wen, Tzung Fang Guo

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

Based on the hole-transport characteristic of poly(3-hexylthiophene) (P3HT), self-assembled thin layer of P3HT was employed to modify the Ag anode of a top-emissive polymer light-emitting diodes (T-PLEDs) to enhance the hole-injection from the Ag anode. The experimental results show that introduction of a P3HT thin layer significantly decreases the threshold voltage of a T-PLED. However, only slightly increase of the work function was achieved due to this modification. To increase the work function of the P3HT modified Ag anode (Ag/P3HT), 1-fluoro-2-nitro-4-azidobenzene (FNAB) was introduced into the terminal tail (-C6H13) of P3HT thin layer, which leads to a work function increment of 0.23 eV and a further enhancement in the hole-injection. The luminous efficiency achieved by this modified anode (Ag/P3HT/FNAB) is about fourfold higher than the efficiency obtained from the base device.

原文English
頁(從 - 到)1141-1145
頁數5
期刊Organic Electronics
10
發行號6
DOIs
出版狀態Published - 2009 9月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 生物材料
  • 一般化學
  • 凝聚態物理學
  • 材料化學
  • 電氣與電子工程

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