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Updated: Aug 6, 2026

Step-by-Step Guide for Harnessing Organic Light Emitting Diodes by Solution Processed Device Fabrication of a TADF Emitter
Published on: November 7, 2025
Sterically Driven Friedel-Crafts-Type Rearrangement Enables Spiro-Acridine Multiple-Resonance TADF Emitters for
Yuanhang Hua1, Xu Zhang1,2, Xiaoyu Guo1
1Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen518055, P. R. China.
Abstract:
Two spiro-acridine-based deep-blue MR-TADF emitters, SABN and SABN-SA, were developed via one-shot borylation. Both emitters exhibit ultranarrow blue emission (fwhm: 18-19 nm) and high PLQYs (>80%). The SABN-SA OLED achieves a maximum EQE of 19.8% with BT.2020-compatible deep-blue emission, demonstrating the effectiveness of spiro engineering for high-performance narrowband MR-TADF emitters.
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