Performance improved white full-organic light emitting diodes (WOLED) based on tricolor dual-layer of hyperfluorescence (HF)

Tianhang Gao; Hua Wang; Zhikuan Chen; Zhongqiang Wang; Mi Zhou; Baomin Zhao; Fei Chen; Qinghua Zou

doi:10.1016/j.orgel.2023.106845

Performance improved white full-organic light emitting diodes (WOLED) based on tricolor dual-layer of hyperfluorescence (HF)

Tianhang Gao, Hua Wang, Zhikuan Chen, Zhongqiang Wang, Mi Zhou, Baomin Zhao, Fei Chen, Qinghua Zou

Research output: Journal Publication › Article › peer-review

5 Citations (Scopus)

Abstract

Efficiency-improved white-light organic light emitting diodes (WOLED) was designed, which based on thermally activated delayed fluorescence (TADF) tricolor-hyperfluorescent dual-layers. Benefited from the efficient utilization of triplet excitons by effective reverse intersystem crossing (RISC), this WOLED features improved efficiency and long lifetime. In this work, blue OLED based on emitting layer of mCP:BD340 was developed and dual-emissive hyperfluorescent OLEDs based on mono-emitting layer of CBP:4CzIPN (green TADF emitter):DBP (red emissive fluorescent molecule) were investigated. Then, the hyperfluorescent WOLED based on the two emitting layers was designed. The good performances were benefited from the highly efficient hyperfluorescent system. This device architecture design demonstrated here represents a kind of full-organic, low-cost white-light OLED for power-efficient light source.

Original language	English
Article number	106845
Journal	Organic Electronics
Volume	120
DOIs	https://doi.org/10.1016/j.orgel.2023.106845
Publication status	Published - Sept 2023
Externally published	Yes

Keywords

Hyperfluorescence
RISC
Spacer
WOLED

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
General Chemistry
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/j.orgel.2023.106845

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title = "Performance improved white full-organic light emitting diodes (WOLED) based on tricolor dual-layer of hyperfluorescence (HF)",

abstract = "Efficiency-improved white-light organic light emitting diodes (WOLED) was designed, which based on thermally activated delayed fluorescence (TADF) tricolor-hyperfluorescent dual-layers. Benefited from the efficient utilization of triplet excitons by effective reverse intersystem crossing (RISC), this WOLED features improved efficiency and long lifetime. In this work, blue OLED based on emitting layer of mCP:BD340 was developed and dual-emissive hyperfluorescent OLEDs based on mono-emitting layer of CBP:4CzIPN (green TADF emitter):DBP (red emissive fluorescent molecule) were investigated. Then, the hyperfluorescent WOLED based on the two emitting layers was designed. The good performances were benefited from the highly efficient hyperfluorescent system. This device architecture design demonstrated here represents a kind of full-organic, low-cost white-light OLED for power-efficient light source.",

keywords = "Hyperfluorescence, RISC, Spacer, WOLED",

author = "Tianhang Gao and Hua Wang and Zhikuan Chen and Zhongqiang Wang and Mi Zhou and Baomin Zhao and Fei Chen and Qinghua Zou",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = sep,

doi = "10.1016/j.orgel.2023.106845",

language = "English",

volume = "120",

journal = "Organic Electronics",

issn = "1566-1199",

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TY - JOUR

T1 - Performance improved white full-organic light emitting diodes (WOLED) based on tricolor dual-layer of hyperfluorescence (HF)

AU - Gao, Tianhang

AU - Wang, Hua

AU - Chen, Zhikuan

AU - Wang, Zhongqiang

AU - Zhou, Mi

AU - Zhao, Baomin

AU - Chen, Fei

AU - Zou, Qinghua

PY - 2023/9

Y1 - 2023/9

N2 - Efficiency-improved white-light organic light emitting diodes (WOLED) was designed, which based on thermally activated delayed fluorescence (TADF) tricolor-hyperfluorescent dual-layers. Benefited from the efficient utilization of triplet excitons by effective reverse intersystem crossing (RISC), this WOLED features improved efficiency and long lifetime. In this work, blue OLED based on emitting layer of mCP:BD340 was developed and dual-emissive hyperfluorescent OLEDs based on mono-emitting layer of CBP:4CzIPN (green TADF emitter):DBP (red emissive fluorescent molecule) were investigated. Then, the hyperfluorescent WOLED based on the two emitting layers was designed. The good performances were benefited from the highly efficient hyperfluorescent system. This device architecture design demonstrated here represents a kind of full-organic, low-cost white-light OLED for power-efficient light source.

AB - Efficiency-improved white-light organic light emitting diodes (WOLED) was designed, which based on thermally activated delayed fluorescence (TADF) tricolor-hyperfluorescent dual-layers. Benefited from the efficient utilization of triplet excitons by effective reverse intersystem crossing (RISC), this WOLED features improved efficiency and long lifetime. In this work, blue OLED based on emitting layer of mCP:BD340 was developed and dual-emissive hyperfluorescent OLEDs based on mono-emitting layer of CBP:4CzIPN (green TADF emitter):DBP (red emissive fluorescent molecule) were investigated. Then, the hyperfluorescent WOLED based on the two emitting layers was designed. The good performances were benefited from the highly efficient hyperfluorescent system. This device architecture design demonstrated here represents a kind of full-organic, low-cost white-light OLED for power-efficient light source.

KW - Hyperfluorescence

KW - RISC

KW - Spacer

KW - WOLED

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U2 - 10.1016/j.orgel.2023.106845

DO - 10.1016/j.orgel.2023.106845

M3 - Article

AN - SCOPUS:85159158010

SN - 1566-1199

VL - 120

JO - Organic Electronics

JF - Organic Electronics

M1 - 106845

ER -

Performance improved white full-organic light emitting diodes (WOLED) based on tricolor dual-layer of hyperfluorescence (HF)

Abstract

Keywords

ASJC Scopus subject areas

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