Results 91 to 100 of about 28,247 (296)
, 2019 Being a unique, simple, and inexpensive approach, continuous development on the fluorescence-based technologies remains active in fluorescent anticounterfeiting.
Banchhanidhi Prusti +3 more
core +2 more sources
Advanced Science, EarlyView.This work presents trap‐programmable Ruddlesden–Popper perovskite nanocrystals for ultralong‐lived optical memory and photonic synapses. Layer‐controlled octahedral distortion modulates trap depth and carrier‐storage kinetics, enabling persistent luminescence beyond 5000 s at room temperature.
Xuanyu Zhu +12 more
wiley +1 more source
Carbazole-Based Imine-Linked Covalent Organic Framework for Efficient Heterogeneous Photocatalysis
Donor–acceptor covalent organic framework (COF) materials have proven to be an optimal choice for heterogeneous photocatalysis due to their capacity for effective charge separation and harvesting of visible light.
Kamal Verma (12135873) +2 more
core +1 more source
, 2017 Carbazole-based thiophene-pyridyl conjugate (L) was synthesised and characterised. The complexation between L with Zn2+ and Hg2+ was studied in HEPES buffer medium by fluorescence, absorption and visual colour change with the detection limit of ~3.7 and ~
Rajkishor Maji (841882) +6 more
core +1 more source
9-(4-Bromobutyl)-9H-carbazole [PDF]
, 2012 In the title compound, C16H16BrN, the tricyclic carbazole system is essentially planar (r.m.s. deviation of all non-H atoms = 0.010 Å). The dihedral angle between the two outer carbazole rings is 1.1 (3)°.
Hui-Zhen Zhang +14 more
core +1 more source
1-(4-Fluorobenzoyl)-9H-carbazole
, 2022 1-(4-Fluorobenzoyl)-9H-carbazole (1) was synthesized, starting from 9H-carbazole and 4-fluorobenzonitrile, by Friedel–Crafts acylation, using boron trichloride to direct the substitution in 1-position.
Torsten Kniess +3 more
core +1 more source
Advanced Science, EarlyView.Synergistically integrating substituent variation and positional isomerism in molecular engineering affords 13 rare tricolored mechanofluorochromic luminogens, and 3 exceedingly scarce force‐triggered bidirectional high‐contrast three‐color fluorescence switches are screened out via a three‐step protocol.
Yijie Zou +7 more
wiley +1 more source
Cobalt‐Catalyzed C─N Bond Formation via Metal‐Hydride Hydrogen Atom Transfer (MHAT)
Angewandte Chemie, EarlyView.Cobalt‐catalyzed metal‐hydride hydrogen atom transfer (Co‐MHAT) converts simple alkenes into C─N bonds under mild, near‐neutral conditions. A shared Co─H‐initiated radical/organocobalt intermediate is channeled into radical trapping, radical‐polar crossover, or radical ligand transfer, unifying hydroamination, hydroazidation, hydroamidation, and remote
Arman Khosravi, Ming‐Yu Ngai
wiley +2 more sources
Advanced Electronic Materials, EarlyView.Carbazole ammonium molecule treatment on PEDOT:PSS hole transport layer endows improved tin‐lead perovskite crystallization and interface transport for near‐infrared LED devices. ABSTRACT Incorporating tin (Sn) and lead (Pb) into metal halide perovskites is an effective strategy for reducing bandgap energy, enabling applications in the near‐infrared ...
Jiale Chen +9 more
wiley +1 more source
Hydration‐Gated Photoinduced Electron Transfer in BODIPY Dyes
Angewandte Chemie, EarlyView.Hydration switches photoinduced electron transfer (PET) ON in alkoxy‐coordinated BODIPY dyes via specific hydrogen bonding. This gating yields a fluorescence lifetime span of ∼6 ns, enabling fluorescence lifetime imaging microscopy (FLIM) contrast in live cells and organoids. ABSTRACT Fluorescent probes based on photoinduced electron transfer (PET) are
Venkata N. K. Mamillapalli +9 more
wiley +2 more sources