articleAdvanced MaterialsFeb 27, 2026Closed access

Tetraphenylsilane‐Engineered MR‐TADF Emitters for Pure‐Green OLEDs with High‐Efficiency, Long Lifetime, and Gamut Close to BT.2020 Standard

ZXZhuixing XueYHYuxuan HuZCZhiyi ChenXZXiudan ZhangJMJingsheng Miao

Shenzhen University

PubMed
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Abstract

ABSTRACT Achieving the concurrent combination of superior color purity, high efficiency, and long operational durability remains a formidable challenge for organic light‐emitting diodes (OLEDs), which are indispensable for realizing ultra‐high‐definition (UHD) displays. Herein, we propose a rational molecular design strategy that peripherally functionalizes the multi‐resonance thermally activated delayed fluorescence (MR‐TADF) skeleton with tetraphenylsilane (TPS) and deuterated TPS groups to address these challenges. The resulting emitters, p ‐DBFSi, m ‐DBFSi, and m ‐DBFSi‐d, exhibit sharp green emission (515–517 nm) with ultra‐narrow full‐widths at half‐maximum (FWHMs) below 0.070 eV, ranking among the…

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6
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Topics & keywords

Topics
Keywords
  • OLED
  • Electroluminescence
  • Diode
  • Narrowband
  • Quantum efficiency
  • Power (physics)
  • Gamut
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