Results 21 to 30 of about 1,868,214 (201)

Frequency resonance amplification in ultrasound-induced long-lasting afterglow [PDF]

open access: yesNature Communications
Ultrasound-induced afterglow has emerged as a promising modality for in vivo imaging, yet achieving sufficient afterglow brightness remains a challenge. Here, we report the inaugural realization of ultrasound-induced afterglow from carbon nanodots using ...
Guang-Song Zheng   +7 more
doaj   +2 more sources

Intrinsic Narrowband Organic Afterglow

open access: yesChemistry of Materials
Narrowband organic afterglow materials show application in multiplexed bioimaging and others. However, materials featuring an intrinsic narrowband afterglow with an emission lifetime >100 ms remain elusive. We report a serendipitous finding of a chemical
Guangming Wang   +8 more
openaire   +2 more sources

Red-light-excited dynamic near-infrared organic afterglow materials for in vivo bioimaging [PDF]

open access: yesLight: Science & Applications
Extending the excitation and emission wavelengths into the red or even near-infrared region is a highly challenging yet scientifically valuable research topic in the field of organic afterglow materials.
Lei Zhou   +8 more
doaj   +2 more sources

Host–Guest Metal–Organic Frameworks-Based Long-Afterglow Luminescence Materials

open access: yesMolecules
Long-afterglow materials have a broad of applications in optoelectronic devices, sensors, medicine and other fields due to their excellent luminescent properties.
Zhi-Chen Zhang, Zhi-Gang Gu, Jian Zhang
doaj   +2 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

Trap Depth Modulation and Antenna Effect of Organic Ligands for Enhancing Rare‐Earth Long Persistent Luminescence [PDF]

open access: yesAdvanced Science
Rare‐earth long persistent luminescence (LPL) materials with unique light‐storage properties show great promise for diverse applications. However, modifying the optical properties of such materials is extremely challenging due to their inherent ...
Ting Tan   +7 more
doaj   +2 more sources

Aggregation-Controlled Triplet Exciton Regulation Enables Single-Emitter Color-Evolving Afterglow. [PDF]

open access: yesAdv Sci (Weinh)
A single‐emitter system based on DTP‐R luminophores enables time‐evolving afterglow through aggregation‐regulated excited‐state dynamics. The coexistence and suppression of delayed fluorescence and phosphorescence are controlled via concentration tuning and host‐guest engineering, revealing the RISC origin of delayed fluorescence and enabling ...
Zhang Y   +14 more
europepmc   +2 more sources

Precisely Regulating 2.45 s Pure Blue Room-Temperature Phosphorescence via Supramolecular Coordination. [PDF]

open access: yesAdv Sci (Weinh)
Herein, a pure deep blue room‐temperature phosphorescence (415 nm) with lifetime up to 2.45 s is successfully achieved by a covalently crosslinking purely organic material based on boric acid (BA) and 3,5‐dicarboxyphenylboronic acid (BOP) through a simple dehydration reaction, which can be adjusted precisely by supramolecular coordination with ...
Wang J   +5 more
europepmc   +2 more sources

Ultrabright and narrowband organic afterglow achieved by molecular engineering of coronene. [PDF]

open access: yesChem Sci
Ultrabright and narrowband organic afterglow is achieved using engineered coronene derivatives, which reaches 73 cd m −2 afterglow brightness with a narrow FWHM of 24.2 nm.
Chen Y   +7 more
europepmc   +3 more sources

Room-Temperature Multiple Phosphorescence from Functionalized Corannulenes: Temperature Sensing and Afterglow Organic Light-Emitting Diode [PDF]

open access: yes, 2023
Corannulene-derived materials have been extensively explored in energy storage and solar cells, but, however, are rarely documented as emitters in light-emitting sensors and organic light-emitting diodes (OLEDs), due to low exciton utilization.
Changfeng, Si   +6 more
core   +2 more sources

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