articleAngewandte Chemie International EditionSep 25, 2019Closed access

Multi‐Resonance Induced Thermally Activated Delayed Fluorophores for Narrowband Green OLEDs

YZYuewei ZhangDZDongdong ZhangJWJinbei WeiZLZiyang LiuYLYangcheng Lü

Tsinghua University · Jilin University · +1 more institution

PubMed
Indexed incrossrefpubmed

Abstract

Abstract High‐color‐purity emissions with small a full‐width at half‐maximum (FWHM) are an ongoing pursuit for high‐resolution displays. Though the flourishment of narrow‐band emissive materials with multi‐resonance induced thermally activated delayed fluorescence (MR‐TADF) in the blue region, such materials have not validated their potential in other color regions. By amplifying the influence of skeleton and peripheral units, a series of highly efficient green‐emitting MR‐TADF materials are firstly reported. Peripheral units with electron‐deficit properties can significantly narrow the energy gap for bathochromic emission without compromising the color fidelity. MR‐TADF emitters with photo‐luminance quantum…

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Topics & keywords

Topics
Keywords
  • Narrowband
  • OLED
  • Materials science
  • Resonance (particle physics)
  • Optoelectronics
  • Composite material
  • Optics
  • Physics
UN Sustainable Development Goals
  • Affordable and clean energy
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