Thermally activated delayed fluorescence emitters showing wide-range near-infrared piezochromism and their use in deep-red OLEDs

Sudhakar, Pagidi; Gupta, Abhishek Kumar; Cordes, David B.; Zysman-Colman, Eli

doi:10.1039/d3sc05188a

Cited by 7 publications

(2 citation statements)

References 26 publications

(28 reference statements)

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“…This is typical of emission from doped glassy films, in which the emitter is partially frozen in multiple different conformations, resulting in varying emission lifetimes. 23–25 Neither of the singly substituted emitters demonstrated any delayed emission in the film state.…”

Section: Synthesismentioning

confidence: 95%

Evaluation of acenes as potential acceptors in thermally activated delayed fluorescence emitters and the promise of a phenoxazine–naphthalene emitter for OLEDs

Lee,

Sharma,

Matulaitis

et al. 2024

J. Mater. Chem. C

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Section: Synthesismentioning

confidence: 95%

Evaluation of acenes as potential acceptors in thermally activated delayed fluorescence emitters and the promise of a phenoxazine–naphthalene emitter for OLEDs

Lee,

Sharma,

Matulaitis

et al. 2024

J. Mater. Chem. C

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“…Inset shows a big group of gold(I) complexes (reproduced from ref , copyright 2016 American Chemical Society). (Others: FOEB, TPE- p NH 2 , p CN-TPA, TPPA-BQ, Me 3 /Me 2 Et/Et 3 , DTBT, FCO-CzS, C6TPPY, 1R, cis -ABPX01, BF 2 AVB, MTBA, [ZnL 2 ], and ANT-AuCNPh).…”

Section: Sense Deform and Healmentioning

confidence: 99%

On Sense and Deform: Molecular Luminescence for Mechanoscience

Hirai

2024

ACS Appl. Opt. Mater.

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Mechanoscientific research fields encompassing chemistry, physics, and biology have advanced significantly over the last two decades. Notably, the study of photon-emitting phenomena in molecular solids responsive to mechanical stimulation is known as mechanoresponsive luminescence (MRL) and mechanoluminescence (ML). These phenomena exhibit significant potential for applications such as sensor technology and anti-counterfeiting measures. The versatility observed in molecular designs, enabling control over responsive thresholds and wavelengths, coupled with diverse mechanisms for inducing deformation, such as heat, light, and sound, significantly broadens the domain of mechanically sensitive molecular materials. However, the understanding of the nanomechanical aspects about these molecular solids remains elusive. A comprehensive examination of the interplay among molecular structures, deformation characteristics, and luminescence responses is essential for further exploration. Such insights are crucial for addressing the intrinsic limitation of “one-time use” associated with deformation-induced properties, necessitating a focus on solid-state healing processes as well. Recent investigations into inorganic-based ML systems applied to free-standing light sources and mechanical metamaterial design foreshadow the future trajectory of molecular-based systems. These advancements aim to facilitate the secondary use of generated photons and the efficient capture/transfer of mechanical cues, enhancing optical output. Molecular luminescence stands poised to make substantial contributions to the ongoing rapid progress in mechanoscience due to an expanding synthetic repertoire, heightened biocompatibility, and precise “structural control” at molecular and macroscopic scales.

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AIE‐Based & Organic Luminescent Materials: Nanoarchitectonics and Advanced Applications

Gawade,

Jadhav,

Bhosale

2024

Chemistry An Asian Journal

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Organic luminescence materials makes the molecule more enthusiastic in wide variety of applications. The luminescent organic materials are in a attraction of the researchers, and the Aggregation‐Induced Emission (AIE) is attributed to the occurrence that particular chromophores (typically fluorophores) display very low or nearly no emission in the monomolecular soluble state but become highly emissive when forming aggregates in solution or in solid state. This phenomenon is relatively abnormal when compared with many other traditional fluorophores. AIE research suppresses aggregation‐caused quenching (ACQ). Nevertheless, the carbon dots (CDs) and quantum dots have shown to have tyical florescence properties, therefore, recent years many researchers have also attracted for their developments. The CDs, luminescent, and AIE materials are not only used in biomedical applications and organic light‐emitting diodes but also in sensing, self‐assembly, and other areas. One should introduce promising material to a designed framework that exhibits AIE characteristics to ensure moral results in AIE. Amongest, AIE‐active tetraphenylethylene (TPE) is attractive fluorophores due to its easy synthesis strategy. This review article discusses the synthesis properties of TPE, CDs, and luminescent materials with a broad range of applications. We have outlined linear, branched‐shaped supramolecular, and hybrid macromolecules due to its potential in the future.

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Thermally activated delayed fluorescence emitters showing wide-range near-infrared piezochromism and their use in deep-red OLEDs

Abstract: We report rare examples of organic small molecules exhibiting both thermally activated delayed fluorescence (TADF) and wide-ranging piezochromism (Δλ > 150 nm) in the near-infrared region and their utilization in deep-red OLEDs.

Cited by 7 publications

References 26 publications

Evaluation of acenes as potential acceptors in thermally activated delayed fluorescence emitters and the promise of a phenoxazine–naphthalene emitter for OLEDs

Evaluation of acenes as potential acceptors in thermally activated delayed fluorescence emitters and the promise of a phenoxazine–naphthalene emitter for OLEDs

On Sense and Deform: Molecular Luminescence for Mechanoscience

AIE‐Based & Organic Luminescent Materials: Nanoarchitectonics and Advanced Applications

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