A Significantly Twisted Spirocyclic Phosphine Oxide as a Universal Host for High-Efficiency Full-Color Thermally Activated Delayed Fluorescence Diodes

Jing Li; Dongxue Ding; Youtian Tao; Ying Wei; Runfeng Chen; Linghai Xie; Wei Huang; Hui Xu

doi:10.1002/adma.201506286

A Significantly Twisted Spirocyclic Phosphine Oxide as a Universal Host for High-Efficiency Full-Color Thermally Activated Delayed Fluorescence Diodes

Jing Li
, Dongxue Ding
, Youtian Tao
, Ying Wei
, Runfeng Chen
, Linghai Xie
, Wei Huang
, Hui Xu

Heilongjiang University
Nanjing Tech University
Nanjing University of Posts and Telecommunications

Research output: Contribution to journal › Article › peer-review

229 Scopus citations

Abstract

A universal thermally activated delayed fluorescence (TADF) host, 4′-diphenylphosphinoylspiro[fluorene-9,9′-xanthene] (SFXSPO), is constructed with a highly distorted and asymmetric configuration and disordered molecular packing in its solid state. SFXSPO successfully endows its full-color TADF diodes with state-of-the-art performance, e.g., the record external quantum efficiency of 22.5% and 19.1% and internal quantum efficiency of ≈100% for its yellow TADF diodes and single-host full-TADF nearly-white-emitting devices, respectively.

Original language	English
Pages (from-to)	3122-3130
Number of pages	9
Journal	Advanced Materials
Volume	28
Issue number	16
DOIs	https://doi.org/10.1002/adma.201506286
State	Published - 27 Apr 2016
Externally published	Yes

Keywords

full color
spiro compounds
thermally activated delayed fluorescence diodes
twisted configuration
universal host

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10.1002/adma.201506286

Cite this

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title = "A Significantly Twisted Spirocyclic Phosphine Oxide as a Universal Host for High-Efficiency Full-Color Thermally Activated Delayed Fluorescence Diodes",

abstract = "A universal thermally activated delayed fluorescence (TADF) host, 4′-diphenylphosphinoylspiro[fluorene-9,9′-xanthene] (SFXSPO), is constructed with a highly distorted and asymmetric configuration and disordered molecular packing in its solid state. SFXSPO successfully endows its full-color TADF diodes with state-of-the-art performance, e.g., the record external quantum efficiency of 22.5\% and 19.1\% and internal quantum efficiency of ≈100\% for its yellow TADF diodes and single-host full-TADF nearly-white-emitting devices, respectively.",

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doi = "10.1002/adma.201506286",

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AU - Li, Jing

AU - Ding, Dongxue

AU - Tao, Youtian

AU - Wei, Ying

AU - Chen, Runfeng

AU - Xie, Linghai

AU - Huang, Wei

AU - Xu, Hui

PY - 2016/4/27

Y1 - 2016/4/27

N2 - A universal thermally activated delayed fluorescence (TADF) host, 4′-diphenylphosphinoylspiro[fluorene-9,9′-xanthene] (SFXSPO), is constructed with a highly distorted and asymmetric configuration and disordered molecular packing in its solid state. SFXSPO successfully endows its full-color TADF diodes with state-of-the-art performance, e.g., the record external quantum efficiency of 22.5% and 19.1% and internal quantum efficiency of ≈100% for its yellow TADF diodes and single-host full-TADF nearly-white-emitting devices, respectively.

AB - A universal thermally activated delayed fluorescence (TADF) host, 4′-diphenylphosphinoylspiro[fluorene-9,9′-xanthene] (SFXSPO), is constructed with a highly distorted and asymmetric configuration and disordered molecular packing in its solid state. SFXSPO successfully endows its full-color TADF diodes with state-of-the-art performance, e.g., the record external quantum efficiency of 22.5% and 19.1% and internal quantum efficiency of ≈100% for its yellow TADF diodes and single-host full-TADF nearly-white-emitting devices, respectively.

KW - full color

KW - spiro compounds

KW - thermally activated delayed fluorescence diodes

KW - twisted configuration

KW - universal host

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DO - 10.1002/adma.201506286

M3 - 文章

AN - SCOPUS:84977865268

SN - 0935-9648

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A Significantly Twisted Spirocyclic Phosphine Oxide as a Universal Host for High-Efficiency Full-Color Thermally Activated Delayed Fluorescence Diodes

Abstract

Keywords

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