Deep-Red/Near-Infrared Electroluminescence from Single-Component Charge-Transfer Complex via Thermally Activated Delayed Fluorescence Channel

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Article number1903112
Journal / PublicationAdvanced Functional Materials
Volume29
Issue number38
Online published4 Jul 2019
Publication statusPublished - 19 Sep 2019

Abstract

Formation of a single‐component charge‐transfer complex (SCCTC) is unveiled in solid state of an intermolecular charge‐transfer molecule 2‐(4‐(1‐phenyl‐1H‐phenanthro[9,10‐d]imidazol‐2‐yl)phenyl)anthracene‐9,10‐dione (PIPAQ). Intermolecular donor–acceptor interactions between two PIPAQ molecules is the primary driving force for self‐association and contributes to intermolecular charge transfer. The SCCTC character is fully verified by crystallographic, photophysical, electron spin resonance, and vibrational characterizations. The PIPAQ‐based SCCTC is first applied in light‐emitting devices as an emissive layer to realize efficient deep‐red/near‐infrared electroluminescence. This work provides new insights into SCCTC and represents an important step toward their applications in optoelectronic devices.

Research Area(s)

  • intermolecular charge transfer, near-infrared, organic light-emitting diode, single-component charge-transfer complex, thermally activated delayed fluorescence

Citation Format(s)

Deep-Red/Near-Infrared Electroluminescence from Single-Component Charge-Transfer Complex via Thermally Activated Delayed Fluorescence Channel. / Chen, Wen-Cheng; Huang, Bin; Ni, Shao-Fei; Xiong, Yuan; Rogach, Andrey L.; Wan, Yingpeng; Shen, Dong; Yuan, Yi; Chen, Jia-Xiong; Lo, Ming-Fai; Cao, Chen; Zhu, Ze-Lin; Wang, Ying; Wang, Pengfei; Liao, Liang-Sheng; Lee, Chun-Sing.

In: Advanced Functional Materials, Vol. 29, No. 38, 1903112, 19.09.2019.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review