Efficiency boost in non-doped blue organic light-emitting diodes: Harnessing aggregation-induced emission – a comprehensive review

Rana, Snigdhamayee; Nayak, Sandhya Rani; Patel, Sabita; Vaidyanathan, Sivakumar

doi:10.1039/d3tc03449f

J. Mater. Chem. C

2024

DOI: 10.1039/d3tc03449f

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Efficiency boost in non-doped blue organic light-emitting diodes: Harnessing aggregation-induced emission – a comprehensive review

Snigdhamayee Rana,

Sandhya Rani Nayak,

Sabita Patel

et al.

Abstract: This comprehensive review explores the breakthrough potential of organic luminescent compounds with aggregation-induced emission (AIE) for advancing deep-blue organic light-emitting diodes (OLEDs). Traditional fluorescent materials have faced limitations due to...

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Cited by 9 publications

References 133 publications

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Molecular Engineering toward Broad Color‐Tunable Emission of Pyrene‐Based Aggregation‐Induced Emission Luminogens

Liu,

Li,

Xie

et al. 2024

Advanced Optical Materials

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A molecular design strategy for the precise regulation of full‐color‐tunable emission organic luminescence materials is not yet systematically established for pyrene chemistry. To fabricate color‐tunable and highly‐efficiency pyrene‐based emitters, this article presents novel pyrene‐based molecules with donating‐π‐accepting structures, which exhibit bright, relatively narrow‐band FWHM emission, broad color‐tunable from deep blue (439 nm) to orange‐red (599 nm) both in solution and in the solid state. Moreover, the compounds 2a, 2d–g exhibit typical aggregation‐induced emission (AIE) characteristics, with an enhanced fluorescence quantum yield in the solid state. The experimental results indicated that the presence of the sterically bulky meta‐substituted biphenyl adopts an out‐of‐plane twist conformation, which can strengthen the rigidity of the molecular conformation and suppress the intermolecular π–π stacking in the aggregated state, resulting in an enhanced emission in the solid state. The prepared pyrene‐based AIEgens are applied as fluorescent inks to write Chinese characters and art with a vivid pattern. Thus, this article not only presents an efficient molecular strategy to construct pyrene‐based AIEgen with broad color‐tunable emission properties for practical applications, but also display a powerful combination of the strong alliance between the advanced luminescent materials, art and Chinese traditional culture.

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Molecular Engineering toward Broad Color‐Tunable Emission of Pyrene‐Based Aggregation‐Induced Emission Luminogens

Liu,

Li,

Xie

et al. 2024

Advanced Optical Materials

View full text Add to dashboard Cite

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Multiple Resonance Quasi‐fluorescence from BN‐Doped Aromatic Compounds Modified with “Naphthalene” Units Approaches the BT.2020 Green Light Standard

Feng,

Nie,

Liu

et al. 2024

Angewandte Chemie

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Creating fluorophores that meet the Broadcast Service Television 2020 (BT.2020) standard is a significant achievement. In this paper, we present an innovative strategy that could revolutionize the development of high‐performance narrowband fluorophores for ultra‐high‐definition displays. Our approach combines classic multi‐resonance BN‐doped fragments with naphthalene, creating two novel narrowband bright green quasi‐fluorescent emitters, NT‐2B and NT‐3B. When tested in dilute toluene, these molecules exhibit emission peaks at 510 and 511 nm with extremely narrow FWHM values of 15 and 14 nm, respectively. Both molecules also demonstrate conventional fluorescence properties with high photoluminescence quantum yields (PLQYs) of up to 85%. Notably, OLEDs containing NT‐2B achieve a peak EQE of approximately 30% and at a doping concentration of 5 wt.%, OLEDs based on NT‐2B achieve a CIEy value of roughly 0.75, closely matching the BT.2020 standard.

show abstract

Multiple Resonance Quasi‐fluorescence from BN‐Doped Aromatic Compounds Modified with “Naphthalene” Units Approaches the BT.2020 Green Light Standard

Feng,

Nie,

Liu

et al. 2024

Angew Chem Int Ed

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Efficiency boost in non-doped blue organic light-emitting diodes: Harnessing aggregation-induced emission – a comprehensive review

Abstract: This comprehensive review explores the breakthrough potential of organic luminescent compounds with aggregation-induced emission (AIE) for advancing deep-blue organic light-emitting diodes (OLEDs). Traditional fluorescent materials have faced limitations due to...

Cited by 9 publications

References 133 publications

Molecular Engineering toward Broad Color‐Tunable Emission of Pyrene‐Based Aggregation‐Induced Emission Luminogens

Molecular Engineering toward Broad Color‐Tunable Emission of Pyrene‐Based Aggregation‐Induced Emission Luminogens

Multiple Resonance Quasi‐fluorescence from BN‐Doped Aromatic Compounds Modified with “Naphthalene” Units Approaches the BT.2020 Green Light Standard

Multiple Resonance Quasi‐fluorescence from BN‐Doped Aromatic Compounds Modified with “Naphthalene” Units Approaches the BT.2020 Green Light Standard

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