High-Efficiency Fluorescent Organic Light-Emitting Devices Using Sensitizing Hosts with a Small Singlet-Triplet Exchange Energy

Materials with small singlet–triplet splits (ΔESTs) are introduced as sensitizing hosts to excite fluorescent dopants, breaking the trade‐off between small ΔEST and high radiative decay rates. A highly efficient orange‐fluorescent organic light‐emitting diode (OLED) is prepared, showing a maximum ex...

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Published in:Advanced materials (Weinheim) 2014-08, Vol.26 (29), p.5050-5055
Main Authors: Zhang, Dongdong, Duan, Lian, Li, Chen, Li, Yilang, Li, Haoyuan, Zhang, Deqiang, Qiu, Yong
Format: Article
Language:English
Subjects:
Decay rate
Devices
Dopants
Energy Transfer
Energy use
Exchange
Fluorescent Dyes - chemistry
fluorescent organic light-emitting devices
high efficiency
Light
Luminescent Measurements
Organic Chemicals - chemistry
Organic light emitting diodes
Semiconductors
Sensitizing
sensitizing hosts
small singlet-triplet exchange energy
thermally activated delayed fluorescence
Tradeoffs
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container_end_page 5055
container_issue 29
container_start_page 5050
container_title Advanced materials (Weinheim)
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creator Zhang, Dongdong
Duan, Lian
Li, Chen
Li, Yilang
Li, Haoyuan
Zhang, Deqiang
Qiu, Yong
description Materials with small singlet–triplet splits (ΔESTs) are introduced as sensitizing hosts to excite fluorescent dopants, breaking the trade‐off between small ΔEST and high radiative decay rates. A highly efficient orange‐fluorescent organic light‐emitting diode (OLED) is prepared, showing a maximum external quantum efficiency of 12.2%.
doi_str_mv 10.1002/adma.201401476
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source Wiley:Jisc Collections:Wiley Read and Publish Open Access 2024-2025 (reading list)
subjects Decay rate
Devices
Dopants
Energy Transfer
Energy use
Exchange
Fluorescent Dyes - chemistry
fluorescent organic light-emitting devices
high efficiency
Light
Luminescent Measurements
Organic Chemicals - chemistry
Organic light emitting diodes
Semiconductors
Sensitizing
sensitizing hosts
small singlet-triplet exchange energy
thermally activated delayed fluorescence
Tradeoffs
title High-Efficiency Fluorescent Organic Light-Emitting Devices Using Sensitizing Hosts with a Small Singlet-Triplet Exchange Energy
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