☆ 4.7 Article

Dual-acceptor thermally activated delayed fluorescence emitters: Achieving high efficiency and long lifetime in orange-red OLEDs

CHEMICAL ENGINEERING JOURNAL (2022)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Nanoscience & Nanotechnology

Two-Channel Space Charge Transfer-Induced Thermally Activated Delayed Fluorescent Materials for Efficient OLEDs with Low Efficiency Roll-Off

Ruifang Wang et al.

Summary: Enhancing the reverse intersystem crossing process of TADF emitters is an effective approach to achieve efficient OLEDs with low efficiency roll-off. The two novel TADF emitters designed in this work, SATDAC and SATX-DAC, showed efficient EQEs and reduced efficiency roll-off through a two-RISC-channel strategy. X-ray diffraction and transient photoluminescence decay measurements suggest that the design with two RISC channels can enhance the performance of TADF emitters, especially at high excitation densities.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Review Chemistry, Multidisciplinary

A Brief History of OLEDs-Emitter Development and Industry Milestones

Gloria Hong et al.

Summary: Organic light-emitting diodes (OLEDs) have undergone significant development over the past 30 years, with advancements in emitter materials leading to three generations of OLED devices. Research is now focused on the fourth generation of OLEDs, with academia and industry achieving milestones in the development of green, orange-red, and blue OLED emitters.

ADVANCED MATERIALS (2021)

添加到收藏夹

Article Nanoscience & Nanotechnology

A New BODIPY Material for Pure Color and Long Lifetime Red Hyperfluorescence Organic Light-Emitting Diode

Young Hun Jung et al.

Summary: A red fluorescent material, 1,3,7,9-tetrakis(4-(tert-butyl)-phenyl)-5,5-difluoro-10-(2-methoxyphenyl)-5H-4l4,5l4-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinine (4tBuMB), was utilized as an emitting dopant in a thermally activated delayed fluorescence (TADF) sensitized hyperfluorescence organic light-emitting diode (HFOLED), demonstrating high photoluminescence quantum yield and device stability. The performance of the HFOLED device with 4tBuMB and 4CzTPN as the sensitizing host outperformed that with 4CzIPN, attributed to higher Forster resonance energy transfer rate and improved device lifetime.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Acceptor-Donor-Acceptor-Type Orange-Red Thermally Activated Delayed Fluorescence Materials Realizing External Quantum Efficiency Over 30% with Low Efficiency Roll-Off

Durai Karthik et al.

Summary: Two new orange-red TADF materials, PzTDBA and PzDBA, exhibit high efficiency, low roll-off, and long lifetime. These materials are designed based on the A-D-A molecular configuration, which contributes to their good electronic properties.

ADVANCED MATERIALS (2021)

添加到收藏夹

Article Nanoscience & Nanotechnology

Rational Utilization of Intramolecular Hydrogen Bonds to Achieve Blue TADF with EQEs of Nearly 30% and Single Emissive Layer All-TADF WOLED

Mengyao Ma et al.

Summary: This study developed a series of highly efficient blue TADF compounds by using pyridine as a bridging unit and incorporating intramolecular hydrogen bonds and modifying the carbazole ring structure. These modifications significantly increased the photoluminescence quantum yields and LED efficiencies. In particular, when used as a blue emitter in all-TADF white OLEDs, SON-tBuCz achieved a high EQE and color rendering index.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Review Chemistry, Multidisciplinary

Identification of the Key Parameters for Horizontal Transition Dipole Orientation in Fluorescent and TADF Organic Light-Emitting Diodes

Francisco Tenopala-Carmona et al.

Summary: Horizontal orientation of the emissive transition dipole moment (TDM) in OLEDs can significantly improve light outcoupling efficiency. Determining the drivers of horizontal orientation, such as emitter molecule aspect ratio and glass-transition temperature (T-g), is crucial. While molecular weight and linearity are key parameters for neat systems, host T-g and emitter length and MW become more relevant in host-guest systems with low and high molecular weight emitters, respectively. Future research should aim to establish a comprehensive model of molecular orientation in OLEDs.

ADVANCED MATERIALS (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Positive impact of chromophore flexibility on the efficiency of red thermally activated delayed fluorescence materials

Yuan-Yuan Wang et al.

Summary: This study compared two red D-A type TADF compounds and found that the flexibility of the chromophore positively impacts the efficiency of TADF materials. PT-TPA, with free rotation of the phenyl groups, achieved higher external quantum efficiency in device design.

MATERIALS HORIZONS (2021)

添加到收藏夹

Article Materials Science, Multidisciplinary

High efficiency and long lifetime orange-red thermally activated delayed fluorescent organic light emitting diodes by donor and acceptor engineering

Shantaram Kothavale et al.

Summary: Highly efficient and stable TADF emitters are needed for commercial applications, but achieving high EQE and long lifetime in a single organic molecular design is difficult, especially in long wavelength designs. Two orange-red TADF emitters, 6,7-DCNQx-DICz and 5,8-DCNQx-DICz, were designed and synthesized, with 6,7-DCNQx-DICz achieving a higher EQE of 23.9% and a lifetime of 931 hours, while 5,8-DCNQx-DICz had a lower EQE of 12.5%, but a longer lifetime of 1184 hours. The combination of DICz and DCQx units could be a promising chemical platform for future highly efficient and long lifetime orange-red TADF OLED designs.

JOURNAL OF MATERIALS CHEMISTRY C (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Improving the Efficiency of Red Thermally Activated Delayed Fluorescence Organic Light-Emitting Diode by Rational Isomer Engineering

Tong Yang et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

添加到收藏夹

Article Materials Science, Multidisciplinary

tert-Butyl substituted hetero-donor TADF compounds for efficient solution-processed non-doped blue OLEDs

Feng-Ming Xie et al.

JOURNAL OF MATERIALS CHEMISTRY C (2020)

添加到收藏夹

Review Materials Science, Multidisciplinary

Review on photo- and electrical aging mechanisms for neutral excitons and ions in organic light-emitting diodes

Chongguang Zhao et al.

JOURNAL OF MATERIALS CHEMISTRY C (2020)

添加到收藏夹

Article Nanoscience & Nanotechnology

Pyridine-Carbonitrile-Carbazole-Based Delayed Fluorescence Materials with Highly Congested Structures and Excellent OLED Performance

Jayachandran Jayakumar et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

添加到收藏夹

Article Chemistry, Multidisciplinary

Controlling Horizontal Dipole Orientation and Emission Spectrum of Ir Complexes by Chemical Design of Ancillary Ligands for Efficient Deep-Blue Organic Light-Emitting Diodes

Hyun Shin et al.

ADVANCED MATERIALS (2019)

添加到收藏夹

Article Materials Science, Multidisciplinary

Substitution Conformation Balances the Oscillator Strength and Singlet-Triplet Energy Gap for Highly Efficient D-A-D Thermally Activated Delayed Fluorescence Emitters

Xiaofang Wei et al.

ADVANCED OPTICAL MATERIALS (2019)

添加到收藏夹

Article Physics, Applied

High efficiency, high color rendering index white organic light-emitting diodes based on thermally activated delayed fluorescence materials

Zhiyi Li et al.

APPLIED PHYSICS LETTERS (2019)

添加到收藏夹

Article Chemistry, Multidisciplinary

Recent Progress of the Lifetime of Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescent Material

Sang Kyu Jeon et al.

ADVANCED MATERIALS (2019)

添加到收藏夹

Article Optics

Diboron compound-based organic light-emitting diodes with high efficiency and reduced efficiency roll-off

Tien-Lin Wu et al.

NATURE PHOTONICS (2018)

添加到收藏夹

Article Materials Science, Multidisciplinary

Highly efficient blue organic light-emitting diodes from pyrimidine-based thermally activated delayed fluorescence emitters

Bowen Li et al.

JOURNAL OF MATERIALS CHEMISTRY C (2018)

添加到收藏夹

Article Chemistry, Multidisciplinary

Diarylboron-Based Asymmetric Red-Emitting Ir(III) Complex for Solution-Processed Phosphorescent Organic Light-Emitting Diode with External Quantum Efficiency above 28%

Xiaolong Yang et al.

ADVANCED SCIENCE (2018)

添加到收藏夹

Article Chemistry, Multidisciplinary

Achieving Nearly 30% External Quantum Efficiency for Orange-Red Organic Light Emitting Diodes by Employing Thermally Activated Delayed Fluorescence Emitters Composed of 1,8-Naphthalimide-Acridine Hybrids

Weixuan Zeng et al.

ADVANCED MATERIALS (2018)

添加到收藏夹

Article Materials Science, Multidisciplinary

Triplet decay-induced negative temperature dependence of the transient photoluminescence decay of thermally activated delayed fluorescence emitter

Xiaofang Wei et al.

JOURNAL OF MATERIALS CHEMISTRY C (2017)

添加到收藏夹

Article Multidisciplinary Sciences

Operational lifetimes of organic light-emitting diodes dominated by Forster resonance energy transfer

Hirohiko Fukagawa et al.

SCIENTIFIC REPORTS (2017)

添加到收藏夹

Article Chemistry, Multidisciplinary

Purely Organic Thermally Activated Delayed Fluorescence Materials for Organic Light-Emitting Diodes

Michael Y. Wong et al.

ADVANCED MATERIALS (2017)

添加到收藏夹

Review Chemistry, Physical

Molecular Design Strategy of Organic Thermally Activated Delayed Fluorescence Emitters

Yirang Im et al.

CHEMISTRY OF MATERIALS (2017)

添加到收藏夹

Review Chemistry, Multidisciplinary

Recent advances in organic thermally activated delayed fluorescence materials

Zhiyong Yang et al.

CHEMICAL SOCIETY REVIEWS (2017)

添加到收藏夹

Article Chemistry, Multidisciplinary

Design Strategy of Blue and Yellow Thermally Activated Delayed Fluorescence Emitters and Their All-Fluorescence White OLEDs with External Quantum Efficiency beyond 20%

Yunchuan Li et al.

ADVANCED FUNCTIONAL MATERIALS (2016)

添加到收藏夹

Article Chemistry, Multidisciplinary

Sky-Blue Organic Light Emitting Diode with 37% External Quantum Efficiency Using Thermally Activated Delayed Fluorescence from Spiroacridine-Triazine Hybrid

Ting-An Lin et al.

ADVANCED MATERIALS (2016)

添加到收藏夹

Article Physics, Multidisciplinary

High Efficiency and Stable Organic Light-Emitting Diodes Based on Thermally Activated Delayed Fluorescence Emitter

Xiao-Peng Lv et al.

CHINESE PHYSICS LETTERS (2016)

添加到收藏夹

Article Nanoscience & Nanotechnology

Above 30% External Quantum Efficiency in Green Delayed Fluorescent Organic Light-Emitting Diodes

Dong Ryun Lee et al.

ACS APPLIED MATERIALS & INTERFACES (2015)

添加到收藏夹

Article Chemistry, Multidisciplinary

A versatile thermally activated delayed fluorescence emitter for both highly efficient doped and non-doped organic light emitting devices

Wei-Lung Tsai et al.

CHEMICAL COMMUNICATIONS (2015)

添加到收藏夹

Review Chemistry, Multidisciplinary

From iridium and platinum to copper and carbon: new avenues for more sustainability in organic light-emitting diodes

D. Volz et al.

GREEN CHEMISTRY (2015)

添加到收藏夹

Article Multidisciplinary Sciences

Dual enhancement of electroluminescence efficiency and operational stability by rapid upconversion of triplet excitons in OLEDs

Taro Furukawa et al.

SCIENTIFIC REPORTS (2015)

添加到收藏夹

Article Materials Science, Multidisciplinary

Controlled emission colors and singlet-triplet energy gaps of dihydrophenazine-based thermally activated delayed fluorescence emitters

Jiyoung Lee et al.

JOURNAL OF MATERIALS CHEMISTRY C (2015)

添加到收藏夹

Review Materials Science, Multidisciplinary

Approaches for fabricating high efficiency organic light emitting diodes

Jwo-Huei Jou et al.

JOURNAL OF MATERIALS CHEMISTRY C (2015)

添加到收藏夹

Article Chemistry, Physical

Highly efficient blue electroluminescence based on thermally activated delayed fluorescence

Shuzo Hirata et al.

NATURE MATERIALS (2015)

添加到收藏夹

Article Chemistry, Multidisciplinary

Novel Thermally Activated Delayed Fluorescence Materials-Thioxanthone Derivatives and Their Applications for Highly Efficient OLEDs

Hui Wang et al.

ADVANCED MATERIALS (2014)

添加到收藏夹

Article Chemistry, Multidisciplinary

A Universal Host Material for High External Quantum Efficiency Close to 25% and Long Lifetime in Green Fluorescent and Phosphorescent OLEDs

Yong Joo Cho et al.

ADVANCED MATERIALS (2014)

添加到收藏夹

Article Chemistry, Multidisciplinary

Highly Efficient Organic Light-Emitting Diodes with Phosphorescent Emitters Having High Quantum Yield and Horizontal Orientation of Transition Dipole Moments

Kwon-Hyeon Kim et al.

ADVANCED MATERIALS (2014)

添加到收藏夹

Article Chemistry, Physical

Molecular Understanding of the Chemical Stability of Organic Materials for OLEDs: A Comparative Study on Sulfonyl, Phosphine-Oxide, and Carbonyl-Containing Host Materials

Na Lin et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2014)

添加到收藏夹

Article Optics

Efficient blue organic light-emitting diodes employing thermally activated delayed fluorescence

Qisheng Zhang et al.

NATURE PHOTONICS (2014)

添加到收藏夹

Article Chemistry, Multidisciplinary

High-Performance Red, Green, and Blue Electroluminescent Devices Based on Blue Emitters with Small Singlet-Triplet Splitting and Ambipolar Transport Property

Kai Wang et al.

ADVANCED FUNCTIONAL MATERIALS (2013)

添加到收藏夹

Review Chemistry, Organic

Recent Progress in Phosphorescent Organic Light-Emitting Devices

Hisahiro Sasabe et al.

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY (2013)

添加到收藏夹

Article Multidisciplinary Sciences

Highly efficient organic light-emitting diodes from delayed fluorescence

Hiroki Uoyama et al.

NATURE (2012)

添加到收藏夹

Article Optics

Extremely efficient flexible organic light-emitting diodes with modified graphene anode

Tae-Hee Han et al.

NATURE PHOTONICS (2012)

添加到收藏夹

Article Physics, Applied

Efficient up-conversion of triplet excitons into a singlet state and its application for organic light emitting diodes

Ayataka Endo et al.

APPLIED PHYSICS LETTERS (2011)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.