Results 1 to 10 of about 5,436 (198)

Thermally activated triplet exciton release for highly efficient tri-mode organic afterglow [PDF]

open access: yesNature Communications, 2020
The development of organic afterglow materials that do not contain heavy metals is of interest for biological applications. Here, the authors report on the development of a thermally activated organic molecule with tri-mode afterglow and an afterglow ...
Jibiao Jin   +11 more
doaj   +3 more sources

Organic Afterglow Materials for Tumor Diagnosis and Therapy [PDF]

open access: yesBiosensors
Organic afterglow nanoparticles (OANs) represent a unique class of optical materials capable of sustaining luminescence after excitation cessation.
Xiayi Chen   +4 more
doaj   +4 more sources

Mechanism landscape in pyrylium induced organic afterglow systems. [PDF]

open access: yesChem Sci, 2023
The afterglow mechanism varies from thermally activated delayed fluorescence through room temperature phosphorescence to organic long persistent luminescence by changing monomer types.
Wang G, Chen X, Li X, Zeng Y, Zhang K.
europepmc   +3 more sources

Time-Dependent Afterglow from a Single Component Organic Luminogen [PDF]

open access: yesResearch, 2021
Pure organic luminogens with long-persistent luminescence have been extensively studied, on account of their fundamental research significance and diverse utilizations in anticounterfeiting, bioimaging, encryption, organic light-emitting diodes, chemo ...
Tianjia Yang   +5 more
doaj   +3 more sources

Design of highly efficient deep-blue organic afterglow through guest sensitization and matrices rigidification [PDF]

open access: yesNature Communications, 2020
Though realizing organic materials with deep blue emission is attractive for next-generation display technologies, achieving this emission in afterglow molecules remains a challenge.
Shen Xu   +9 more
doaj   +2 more sources

Achieving Highly Robust Polymeric Microspheres with Efficient and Full‐Color Organic Afterglow for 3D Printing and Anti‐Counterfeiting [PDF]

open access: yesAdvanced Science
In this work, highly robust polymer‐based luminescent microspheres with efficient and full‐color organic afterglow are developed for the first time. N‐phenylnaphthalen‐1‐amine, N‐phenylphenanthren‐9‐amine, and N‐phenyltriphenylen‐2‐amine are employed as ...
Pengtao Hu   +13 more
doaj   +2 more sources

Organic Afterglow Vesicles [PDF]

open access: yesAdvanced Science
Organic afterglow materials hold great promise for applications in bioimaging, sensing, and information encryption, yet the construction of advanced nanostructures like vesicles with long‐lived luminescence remains a formidable challenge.
Siqi Zhu   +8 more
doaj   +2 more sources

Diboraanthracene-Doped Polymer Systems for Colour-Tuneable Room-Temperature Organic Afterglow. [PDF]

open access: yesAngew Chem Int Ed Engl, 2023
AbstractOrganic ultralong room temperature phosphorescence (RTP), or organic afterglow, is a unique phenomenon, gaining widespread attention due to its far‐reaching application potential and fundamental interest. Here, two laterally expanded 9,10‐dimesityl‐dihydro‐9,10‐diboraanthracene (DBA) derivatives are demonstrated as excellent afterglow materials
Jovaišaitė J   +6 more
europepmc   +3 more sources

Direct Population of Triplet States for Efficient Organic Afterglow through the Intra/Intermolecular Heavy-Atom Effect [PDF]

open access: yesMolecules
Organic afterglow is a fascinating phenomenon with exceptional applications. However, it encounters challenges such as low intensity and efficiency, and typically requires UV-light excitation and facile intersystem crossing (ISC) due to its spin ...
Jie Yuan   +10 more
doaj   +2 more sources

Enhanced Near-Infrared-Excitable Organic Afterglow Nanoparticles for Deep-Tissue Multimodal Imaging via Singlet Oxygen-Mediated Energy Transfer [PDF]

open access: yesResearch
Afterglow imaging offers exceptional signal-to-background ratios (SBRs) by circumventing real-time excitation and autofluorescence, yet conventional systems rely on visible-light excitation, limiting tissue penetration and signal intensity.
Yuzhen Yu   +8 more
doaj   +2 more sources

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