Results 11 to 20 of about 89,593 (382)

Hot Vibrational States in a High-Performance Multiple Resonance Emitter and the Effect of Excimer Quenching on Organic Light-Emitting Diodes

open access: yesACS Applied Materials and Interfaces, 2021
The photophysics of multiple resonance thermally activated delayed fluorescence molecule ν-DABNA is described. We show coupling of a 285 cm–1 stretching/scissoring vibrational mode of peripheral phenyl rings to the S1 state, which dictates the ultimate ...
K. Stavrou   +4 more
semanticscholar   +1 more source

Direct demonstration of triplet excimer in purely organic room temperature phosphorescence through rational molecular design

open access: yesLight: Science & Applications, 2022
Organic luminogens with room temperature phosphorescence (RTP) have been paid great attention and developed rapidly for their wide application values. Until now, the internal mechanism and source of phosphorescence are still obscure, especially for the ...
Zhenjiang Liu   +8 more
semanticscholar   +1 more source

UV Inactivation of Common Pathogens and Surrogates Under 222 nm Irradiation from KrCl* Excimer Lamps

open access: yesPhotochemistry and Photobiology, 2022
Germicidal ultraviolet (UV) devices have been widely used for pathogen disinfection in water, air, and on food and surfaces. Emerging UV technologies, like the krypton chloride (KrCl*) excimer emitting at 222 nm, are rapidly gaining popularity due to ...
Ben Ma   +8 more
semanticscholar   +1 more source

Topography-guided excimer laser ablation in refractive surgery [PDF]

open access: diamondFrontiers in Ophthalmology
Şefik Can İpek   +3 more
doaj   +2 more sources

New Water-Soluble Poly(propylene imine) Dendrimer Modified with 4-Sulfo-1,8-naphthalimide Units: Sensing Properties and Logic Gates Mimicking

open access: yesSensors, 2023
A new water-soluble poly(propylene imine) dendrimer (PPI) modified with 4-sulfo-1,8-naphthalimid units (SNID) and its related structure monomer analog (SNIM) has been prepared by a simple synthesis.
Awad I. Said   +2 more
doaj   +1 more source

Phenanthridine–pyrene conjugates as fluorescent probes for DNA/RNA and an inactive mutant of dipeptidyl peptidase enzyme

open access: yesBeilstein Journal of Organic Chemistry, 2023
Two novel conjugate molecules were designed: pyrene and phenanthridine-amino acid units with a different linker length between the aromatic fragments. Molecular modelling combined with spectrophotometric experiments revealed that in neutral and acidic ...
Josipa Matić   +8 more
doaj   +1 more source

Real‐time Observation of Structural Dynamics Triggering Excimer Formation in a Perylene Bisimide Folda‐dimer by Ultrafast Time‐Domain Raman Spectroscopy

open access: yesAngewandte Chemie, 2021
In π‐conjugated organic photovoltaic materials, an excimer state has been generally regarded as a trap state which hinders efficient excitation energy transport.
Yongseok Hong   +6 more
semanticscholar   +1 more source

Excimer light versus excimer light with topical prostaglandin in the treatment of facial vitiligo: a comparative study

open access: yesAl-Azhar Assiut Medical Journal, 2023
Background and aim Vitiligo is a common skin-depigmentation disorder characterized by the absence of melanocytes. The mechanism and etiology of vitiligo is still unknown, so the treatment of vitiligo is challenging.
Khaled M Tawfik   +2 more
doaj   +1 more source

Solvent-Induced Sign Inversion of Circularly Polarized Luminescence: Control of Excimer Chirality by Hydrogen Bonding.

open access: yesJournal of the American Chemical Society, 2020
A series of pyrenes sandwiched by axially chiral 1,1'-binaphthyls were synthesized. Among them, (R,R)-3 possessing 2-hydroxy-3,3'-dimethylbinaphthyls exhibited solvent-dependent inversion of the sign of circularly polarized luminescence (CPL) without a ...
Kazuto Takaishi   +2 more
semanticscholar   +1 more source

MANAGEMENT OF RESIDUAL REFRACTIVE ERROR AFTER CATARACT PHACOEMULSIFICATION. PART 2. INTRAOCULAR APPROACHES

open access: yesOftalʹmologiâ, 2017
The review presents an  analysis  of the  literature  data  on  the  methods of surgical  correction of residual  refractive  error after cataract phacoemulsification. Keratorefractive and intraocular approaches are  considered in details.
K. B. Pershin   +4 more
doaj   +1 more source

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