4.8 Article

Highly Efficient Deep-Blue Electrophosphorescence Enabled by Solution-Processed Bipolar Tetraarylsilane Host with Both a High Triplet Energy and a High-Lying HOMO Level

Journal

ADVANCED MATERIALS
Volume 23, Issue 42, Pages 4956-4959

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201102758

Keywords

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Funding

  1. National Natural Science Foundation of China [90922020, 20621401]
  2. National Basic Research Program of China [2009CB623602, 2009CB930603]
  3. National Science Fund for Distinguished Young Scholars
  4. Program for Changjiang Scholars and Innovative Research Team in University [IRT1030]
  5. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences

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A new bipolar tetraarylsilane derivative with both a sufficiently high triplet energy and a high-lying highest occupied molecular orbital energy level is presented as an excellent host for the deep-blue phosphor. A solution-processed FIr6-based deep-blue phosphorescent organic light-emitting diode (PhOLED) is realized with high efficiency and low efficiency roll-off.

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