Results 111 to 120 of about 430,617 (369)

Mechanochemistry‐Assisted Solvent‐Free Supramolecular Engineering for Atomic‐Layered Carbon Nitride Nanosheets with Enhanced Photocatalytic Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
A solvent‐free mechanochemistry‐enabled supramolecular engineering strategy is developed to directly synthesize covalent‐interconnected two‐dimensional atomic‐layered carbon nitride nanosheets photocatalyst, bypassing conventional top‐down exfoliation requirements.
Fanglei Yao   +7 more
wiley   +1 more source

Photoluminescence-based simultaneous thermometry and velocimetry in non-aqueous liquid

open access: gold, 2023
M. Yamazaki   +4 more
openalex   +1 more source

Unusual Product Distribution from Friedländer Reaction of Di- and Triacetylbenzenes with 3-Aminonaphthalene-3-Carbaldehyde and Properties of New Benzo[g]quinoline-Derived Aza-aromatics

open access: yesMolecules, 2014
The Friedländer reactions of acetylbenzenes and 2-acetylpyridine with 3-aminonaphthalene-2-carbaldehyde afforded the corresponding 2-phenylbenzo[g]quinoline and 2-(pyrid-2-yl)benzo[g]quinoline, respectively.
Moinul Karim, Yurngdong Jahng
doaj   +1 more source

Tailoring Redox Active Sites with Dual‐Interfacial Electric Fields for Concurrent Photocatalytic Biomass Valorization and H2 Production

open access: yesAdvanced Functional Materials, EarlyView.
A rationally engineered bifunctional photocatalyst is reported, which achieves simultaneous selective oxidation of biomass‐derived 5‐hydroxymethylfurfural (HMF) to 2,5‐diformylfuran (DFF) and efficient H2 evolution. By precisely positioning Au and Co3O4 on Zn3In2S6 nanosheet, dual interfacial electric fields are well constructed to spatially separate ...
Shiqing Li   +8 more
wiley   +1 more source

Near-unity photoluminescence quantum yield in MoS2

open access: yesScience, 2015
Brighter molybdenum layers The confined layers of molybdenum disulphide (MoS2) exhibit photoluminescence that is attractive for optolectronic applications.
M. Amani   +17 more
semanticscholar   +1 more source

Estudo fotofísico do cromóforo p-fenóxi-metil-estilbeno livre ou ligado a um esqueleto de poliestireno Photophysical study of free or bound p-phenoxi-methyl-stilbene chromophore

open access: yesPolímeros, 1997
O comportamento fotofísico do cromóforo p-fenóxi-metil-estilbeno livre ou como grupamento pendente em cadeia polimérica foi estudado através de espectros de absorção e fotoluminescência em solução e no estado sólido. As características do cromóforo livre
Marcelo Aguiar   +3 more
doaj   +1 more source

Theory of Exciton Recombination from the Magnetically Induced Wigner Crystal

open access: yes, 1996
We study the theory of itinerant-hole photoluminescence of two-dimensional electron systems in the regime of the magnetically induced Wigner crystal.
A. H. MacDonald   +27 more
core   +1 more source

Fluorescent Nanodiamonds Based Theranostic Platform for pH‐Sensitive Drug Delivery and Quantum Sensing

open access: yesAdvanced Functional Materials, EarlyView.
A multifunctional nanodiamond platform enables pH‐triggered Diazoxide (DZX) delivery and quantum sensing of subcellular radical dynamics in triple‐negative breast cancer cells. Diamond relaxometry revealed reduced lysosomal radicals during DZX‐induced mitochondrial radical elevation, providing insights into redox modulation and organelle‐ resolved ...
Kaiqui Wu   +8 more
wiley   +1 more source

Optical spectra of quantum dots: effects of non-adiabaticity

open access: yes, 2003
It is shown that in many cases an adequate description of optical spectra of semiconductor quantum dots requires a treatment beyond the commonly used adiabatic approximation.
Devreese, J. T.   +4 more
core   +1 more source

Covalent Organic Frameworks for Water Sorption: The Importance of Framework Physical Stability

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the water‐vapor stability of 2D covalent organic frameworks (COFs) with varying pore sizes. Results reveal microporous COFs demonstrate superior stability compared to mesoporous ones, despite lower water uptake. Mesoporous keto‐enamine‐linked COFs show enhanced stability due to intralayer hydrogen bonds, confirmed by simulations and
Wei Zhao   +13 more
wiley   +1 more source

Home - About - Disclaimer - Privacy