More than Carbazole Derivatives Activate Room Temperature Ultralong Organic Phosphorescence of Benzoindole Derivatives
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DOI: 10.1002/adma.202200544
Abstract: The mechanism of carbazole (Cz)‐based phosphors is still unclear since its isomer (1H‐benzo[f]indole, Bd) is discovered in 2020. Herein, the successful synthesis of four Cz/Bd derivatives is reported, named as 2CzBr, CzBdBr, 2BdBr, and 3Bd,… read more here.
Keywords: ultralong organic; phosphorescence; derivatives activate; organic phosphorescence ... See more keywords
Structurally Resemblant Dopants Enhance Organic Room‐Temperature Phosphorescence
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DOI: 10.1002/adma.202201569
Abstract: Doping has shown very promising potential in endowing room‐temperature phosphorescence (RTP) properties of organic phosphors with minimal effort. Here, a new isomer design and doping strategy is reported that is applicable to dibenzothiophene (DBT) and… read more here.
Keywords: room temperature; dbt derivatives; phosphorescence; temperature phosphorescence ... See more keywords
Amorphous Copper-Based Nanoparticles with Clusterization-Triggered Phosphorescence for Ultrasensing 2,4,6-Trinitrotoluene.
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DOI: 10.1002/adma.202300526
Abstract: Amorphous metal-based nanostructures have attracted great attention recently due to their facilitative electron transfer and abundant reactive sites, whereas it remains enigmatic whether the amorphous copper-based nanoparticles (CuNPs) could be achieved. Here, for synthesizing amorphous… read more here.
Keywords: phosphorescence; clusterization triggered; amorphous copper; based nanoparticles ... See more keywords
Achieving Tunable Organic Afterglow and UV Irradiation-Responsive Ultralong Room-Temperature Phosphorescence from Pyridine-Substituted Triphenylamine Derivatives.
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DOI: 10.1002/adma.202301874
Abstract: Amorphous polymers with ultralong room-temperature phosphorescence (RTP) are highly promising for various applications. Particularly, polymer-based RTP materials with multiple functions such as color-tunability or stimulus-responsiveness are highly desirable for multilevel anti-counterfeiting but are rarely reported.… read more here.
Keywords: pyridine substituted; phosphorescence; temperature phosphorescence; ultralong room ... See more keywords
Thermally Activated Delayed Phosphorescence and Interchromophore Exciton Coupling in a Platinum‐Based Organometallic Emitter
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DOI: 10.1002/adom.202001023
Abstract: The comprehension of triplet exciton mechanisms in organic–inorganic semiconductors has a significant impact on emerging optoelectronic and biosensing technologies. The capability to mutually integrate the photophysical properties of conjugated organic semiconductor with those of well‐characterized… read more here.
Keywords: delayed phosphorescence; thermally activated; platinum based; interchromophore exciton ... See more keywords
Robust White‐Light Emitting and Multi‐Responsive Luminescence of a Dual‐Mode Phosphorescence Molecule
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DOI: 10.1002/adom.202001685
Abstract: Developing a single emitter with dual emission or multi‐emission, termed as single‐molecule white‐light emission (SMWLE), has attracted more and more attention. However, the exploration of fluorescence‐RTP SMWLE is very challenging because purely organic RTP molecule… read more here.
Keywords: molecule; light emitting; white light; phosphorescence ... See more keywords
Water‐Induced Blue‐Green Variable Nonconventional Ultralong Room Temperature Phosphorescence from Cross‐Linked Copolymers via Click Chemistry
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DOI: 10.1002/adom.202101284
Abstract: Ultralong room temperature phosphorescence is employed in information encryption, chemical sensing, lighting, and imaging on account of its long lifetime and high signal‐to‐noise ratio. As the triplet excitons can be easily quenched and interfered by… read more here.
Keywords: chemistry; ultralong room; temperature phosphorescence; room temperature ... See more keywords
Roles of Localized Electronic Structures Caused by π Degeneracy Due to Highly Symmetric Heavy Atom‐Free Conjugated Molecular Crystals Leading to Efficient Persistent Room‐Temperature Phosphorescence
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DOI: 10.1002/advs.201900410
Abstract: Abstract Conjugated molecular crystals with persistent room‐temperature phosphorescence (RTP) are promising materials for sensing, security, and bioimaging applications. However, the electronic structures that lead to efficient persistent RTP are still unclear. Here, the electronic structures… read more here.
Keywords: electronic structures; triplet; room temperature; phosphorescence ... See more keywords
Tailored Fabrication of Carbon Dot Composites with Full-Color Ultralong Room-Temperature Phosphorescence for Multidimensional Encryption.
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DOI: 10.1002/advs.202103833
Abstract: Ultralong room-temperature phosphorescence (RTP) is highly useful for information encryption, organic electronics, bioelectronics, etc. However, the preparation of related metal-free materials with multiple colors across the full spectrum remains a major challenge. Herein, a facile… read more here.
Keywords: color; ultralong room; temperature; room temperature ... See more keywords
A Highly Efficient Phosphorescence/Fluorescence Supramolecular Switch Based on a Bromoisoquinoline Cascaded Assembly in Aqueous Solution
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DOI: 10.1002/advs.202200524
Abstract: Despite ongoing research into photocontrolled supramolecular switches, reversible photoswitching between room‐temperature phosphorescence (RTP) and delayed fluorescence is rare in the aqueous phase. Herein, an efficient RTP‐fluorescence switch based on a cascaded supramolecular assembly is reported,… read more here.
Keywords: phosphorescence; cascaded assembly; switch based; rtp ... See more keywords
Two‐Photon Excited Near‐Infrared Phosphorescence Based on Secondary Supramolecular Confinement
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DOI: 10.1002/advs.202201182
Abstract: Organic phosphorescence materials have received wide attention in bioimaging for bio‐low toxicity and large Stokes. Herein, a design strategy to achieve near‐infrared (NIR) excitation and emission of organic room‐temperature phosphorescence through two‐stage confinement supramolecular assembly… read more here.
Keywords: two photon; phosphorescence; near infrared; photon excited ... See more keywords