Utilizing a Spiro TADF Moiety as a Functional Electron Donor in TADF Molecular Design toward Efficient “Multichannel” Reverse Intersystem Crossing
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DOI: 10.1002/adfm.201808088
Abstract: Designing thermally activated delayed fluorescence (TADF) materials with an efficient reverse intersystem crossing (RISC) process is regarded as the key to actualize efficient organic light‐emitting diodes (OLEDs) with low efficiency roll‐off. Herein, a novel molecular… read more here.
Keywords: intersystem crossing; reverse intersystem; tadf; efficiency ... See more keywords
Charge‐Transfer Exciton Manipulation Based on Hydrogen Bond for Efficient White Thermally Activated Delayed Fluorescence
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DOI: 10.1002/adfm.201908568
Abstract: Despite the success of thermally activated delayed fluorescence (TADF) emitters in monochromatic organic light‐emitting diodes (OLED), only few efficient full‐TADF white OLEDs (WOLED) are reported because of the challenge in rational exciton allocation between blue… read more here.
Keywords: hydrogen bond; thermally activated; tadf; delayed fluorescence ... See more keywords
Thermally Activated Delayed Fluorescence Warm White Organic Light Emitting Devices with External Quantum Efficiencies Over 30%
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DOI: 10.1002/adfm.202101647
Abstract: While monochrome organic light‐emitting diodes (OLEDs) based on thermally activated delayed fluorescence (TADF) emitters have achieved over 30% external quantum efficiencies (EQEs), all‐TADF white OLEDs (WOLEDs) are still lagging behind. Herein, a simple system based… read more here.
Keywords: organic light; light emitting; thermally activated; tadf ... See more keywords
Multifunctional Thermally Activated Delayed Fluorescence Carbon Dots for Temperature‐Responsive Sensor, Information Encryption, and Organelle Imaging
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DOI: 10.1002/adfm.202405669
Abstract: Thermally activated delay fluorescence (TADF) has great potential for information encryption, temperature detection, and bioimaging due to its long‐lived luminescence, temperature‐sensitive and high signal‐to‐noise ratio. However, it is still a challenge to establish TADF in… read more here.
Keywords: carbon dots; thermally activated; information encryption; tadf ... See more keywords
Multi‐Resonance TADF Conjugated Polymers toward Highly Efficient Solution‐Processible Narrowband Green OLEDs
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DOI: 10.1002/adfm.202408119
Abstract: Due to the extended conjugation along the polymeric backbone and the scarcity of suitable multi‐resonance (MR) emitting units for polymerization, precisely adjusting the colors of MR‐thermally activated delayed fluorescence (MR‐TADF) conjugated polymers to green and… read more here.
Keywords: conjugated polymers; solution; tadf conjugated; multi resonance ... See more keywords
Planar Expansion Enhances Horizontal Orientation of Multi‐Resonance TADF Emitter Toward Highly Efficient Narrowband Blue OLEDs
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DOI: 10.1002/adfm.202409244
Abstract: Multi‐resonance thermally activated delayed fluorescence (MR‐TADF) materials are of vital importance for ultra‐high‐definition displays. However, developing molecular design tactics for blue MR‐TADF emitters that simultaneously achieve good TADF properties, narrowband emission, and ideal molecular orientation… read more here.
Keywords: orientation; tadf emitter; tadf; multi resonance ... See more keywords
Efficient Circularly Polarized Electroluminescence Based on Chiral MR‐TADF Materials with Innovative Planar Structure Design Strategy
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DOI: 10.1002/adfm.202504525
Abstract: Chiral multiple resonance thermally activated delayed fluorescence (CP‐MR‐TADF) emitters have obtained attention due to their potential in organic light‐emitting diodes (CP‐OLEDs) with circularly polarized luminescence (CPL). Moreover, the devices always rely on the doping concentration… read more here.
Keywords: circularly polarized; icz prcz; tadf materials; tadf ... See more keywords
It Matters Where the Heavy Atom Is Placed: Optimizing the Spin–Orbital Coupling in Multiresonant TADF (MR‐TADF) Emitters and Its Impact on OLED Performance
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DOI: 10.1002/adfm.202506189
Abstract: This study explores the impact of the regioisomerism of a heavy chalcogen atom on the photophysical properties of multi‐resonant thermally activated delayed fluorescence (MR‐TADF) materials. Two pairs of isomeric MR‐TADF emitters containing different benzothienocarbazole moieties,… read more here.
Keywords: tadf emitters; spin orbital; orbital coupling; heavy atom ... See more keywords
Fabrication of Circularly Polarized MR-TADF Emitters with Asymmetrical Peripheral-Lock Enhancing Helical B/N-Doped Nanographenes.
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DOI: 10.1002/adma.202105080
Abstract: Circularly polarized thermally activated delayed fluorescence (CP-TADF) and multiple-resonance thermally activated delayed fluorescence (MR-TADF), which exhibit novel circularly polarized luminescence and excellent color fidelity, respectively, have gained immense popularity. In this study, integrated CP-TADF and… read more here.
Keywords: bn4 bn5; fabrication circularly; circularly polarized; tadf ... See more keywords
Quenching-Resistant Multi-Resonance TADF Emitter Realizes 40% External Quantum Efficiency in Narrowband Electroluminescence at High Doping Level.
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DOI: 10.1002/adma.202106954
Abstract: Multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters manifest great potential for organic light-emitting diodes (OLEDs) due to their high exciton-utilization efficiency and narrowband emission. Nonetheless, their tendency towards self-quenching caused by strong interchromophore interactions would… read more here.
Keywords: efficiency narrowband; external quantum; multi resonance; tadf ... See more keywords
Solution‐Processed Pure Red TADF Organic Light‐Emitting Diodes With High External Quantum Efficiency and Saturated Red Emission Color
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DOI: 10.1002/adma.202208602
Abstract: In spite of recent research progress in red thermally activated delayed fluorescence (TADF) emitters, highly efficient solution‐processable pure red TADF emitters are rarely reported. Most of the red TADF emitters reported to date are designed… read more here.
Keywords: red tadf; solution processed; tadf; solution ... See more keywords