Results 171 to 180 of about 409,972 (287)

Ubiquitous Antiparallel Domains in 2D Hexagonal Boron Nitride Uncovered by Interferometric Nonlinear Optical Imaging

open access: yesAdvanced Materials, Volume 38, Issue 25, 4 May 2026.
Interferometric second‐harmonic generation (SHG) imaging reveals the ubiquitous formation of antiparallel domains in CVD‐grown 2D hexagonal boron nitride. By resolving lattice orientation and SHG phase, hidden domain structures and disorder become visible over large areas. The SHG intensity quantitatively tracks crystalline quality across growth routes,
Yeri Lee   +12 more
wiley   +1 more source

Octupolar AIEgens Photosensitizers With Enhanced Molar Absorptivity for Near‐Infrared Phototheranostics

open access: yesAggregate, Volume 7, Issue 5, May 2026.
Symmetry‐guided molecular engineering transforms dipolar AIEgens into octupolar AIEgens (D(A)3) with enhanced NIR‐II absorptivity. The octupolar architecture activates additional S0→S2 transitions and promotes efficient intersystem crossing, leading to strong reactive oxygen species generation.
Haifei Wen   +14 more
wiley   +1 more source

Dual‐Phosphorus, Dual‐Nitrogen‐Embedded Corannulene: Synthesis, Structure, and Electronic Coupling

open access: yesChemistryEurope, Volume 4, Issue 5, May 2026.
P2N2‐TBC, a corannulene‐based bowl structure incorporating two phosphorus and two nitrogen atoms, represents the first P2N2‐embedded heterobuckybowl. The cis and trans stereoisomers of this compound display distinct packing motifs, leading to markedly different electronic coupling patterns.
Marina Nagai   +6 more
wiley   +1 more source

Chiral Heptagon‐Embedded Double [6]Helicenes via Scholl Reaction

open access: yesAngewandte Chemie, Volume 138, Issue 16, 13 April 2026.
One bond makes the difference–two chiral and twisted polycyclic aromatic hydrocarbons (PAHs) show different emission behavior. The more flexible one (top) shows a double emission with one having a large anti‐Stokes shift. The two peaks are assigned to different conformers of one and the same compound.
Dan Wang   +6 more
wiley   +2 more sources

Organic neuromorphic electronics powering intelligent sensory and edge computing systems

open access: yesInfoMat, Volume 8, Issue 5, May 2026.
Organic electronic materials are promising candidates for neuromorphic sensing applications, including chemical, physical, visual, and multimodal sensing, owing to their mechanical softness, biocompatibility, and intrinsic ionic–electronic coupling.
Seungjun Woo   +5 more
wiley   +1 more source

Triple Matrix Confinement‐Induced Ultrabright Afterglow From Carbon Dots With Multivariate Responsive Afterglow Colors for Advanced Dynamic Information Encryption

open access: yesAngewandte Chemie, Volume 138, Issue 16, 13 April 2026.
A novel carbon dots material (BUL‐CDs) with an initial afterglow brightness (406 cd m−2) far exceeding that of other afterglow luminescent materials was developed. Furthermore, the BUL‐CDs exhibited time‐dependent afterglow colors, excitation‐dependent afterglow colors, and thermochromic afterglow in response to triplet variables.
Yupeng Liu   +13 more
wiley   +2 more sources

Experimental realization and synchronization of a quantum van der Pol oscillator. [PDF]

open access: yesSci Adv
Li Y   +10 more
europepmc   +1 more source

Does Aromaticity Drive Metal Cation Binding to Nanographenes? Insights Into Regioselectivity and Cation‐π$$ \pi $$ Bonding

open access: yesJournal of Computational Chemistry, Volume 47, Issue 10, 15 April 2026.
Aromaticity of a ring by itself does not explain the binding energies of alkali and alkaline earth metal cations with nanographenes, but when combined with the Fukui function, it does. ABSTRACT Nanographenes, a subclass of polycyclic aromatic hydrocarbons (PAHs), have attracted significant interest due to their unique electronic properties and broad ...
Omkar Charapale   +3 more
wiley   +1 more source

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