Results 71 to 80 of about 107,974 (298)

Photophysics of polymeric carbon nitride: An optical quasimonomer [PDF]

Physical Review B, 2013
A comprehensive investigation of the luminescent properties of carbon nitride polymers, based on tri-s-triazine units, has been conducted. Steady-state temperature- and excitation-power-dependent as well as time-resolved measurements with near-UV excitation ( =325 nm and 405 nm) yield strong photoluminescence, covering the visible spectrum.
Merschjann, C., Tyborski, T., Orthmann, S., Yang, F., Schwarzburg, K., Lublow, M., Lux-Steiner, Martha, Schedel-Niedrig, Th.   +7 more
openaire   +1 more source

Selective Separation of the Rare Earth Elements Dysprosium and Neodymium via Tailoring Nanocellulose Chemical Structure

Advanced Functional Materials, EarlyView.
Dicarboxylate‐modified anionic hairy cellulose nanocrystals exhibit a high selectivity for dysprosium(III) over neodymium(III). This selectivity arises from disordered dicarboxylate cellulose “hairs” that enable cooperative ionic coordination, hydrogen bonding, and strain‐induced conformational shrinkage.
Roya Koshani, Shang‐Lin Yeh, Karuna Anna Sajeevan, Mica L. Pitcher, Dawson Alexander, Ratul Chowdhury, Amir Sheikhi   +6 more
wiley   +1 more source

Synthesis and characterization of iron and iron nitride microtubes obtained from biogenic iron oxide [PDF]

, 2017
With the aim to obtain iron tubular microstructures attractive for various applications, we have used a natural biogenic iron ochre as a raw material and explore various procedures and experimental conditions to achieve our goal. Our experiments included
Hargreaves, J.S.J., Rico, J.L.
core   +1 more source

Mapping Nanoscale Buckling in Atomically Thin Cr2Ge2Te6

Advanced Functional Materials, EarlyView.
Atomic‐resolution STEM is used to resolve nanoscale buckling in monolayer Cr2Ge2Te₆. A noise‐robust image analysis reconstructs three‐dimensional lattice distortions from single plan‐view images, revealing pronounced defect‐driven nm‐scale out‐of‐plane buckling.
Amy Carl, Nicholas Clark, David G. Hopkinson, Matthew Hamer, Matthew Watson, Laxman Nagireddy, James E. Nunn, Alexei Barinov, Yichao Zou, William Thornley, Casey Cheung, Wendong Wang, Sam Sullivan‐Allsop, Xiao Li, Astrid Weston, Eli G. Castanon, Andrey V Kretinin, Cephise Cacho, Neil R. Wilson, Sarah J. Haigh, Roman Gorbachev   +20 more
wiley   +1 more source

Raman Spectroscopy Of Boron Nitride Nanotubes And Boron Nitride — Carbon Composites [PDF]

AIP Conference Proceedings, 2005
Boron nitride nanotubes (BN-NT) are topological analoges to single wall carbon nanotubes (SWCNT). We analysed and refined the filling process for SWCNTs and applied it to the BN-NTs. BN-NTs were first annealed in air to open the ends and to remove BN particles. A filling procedure with C60 fullerene via vapour phase was applied.
Hasi, F., Simon, F., Kuzmany, H., Arenal, R., Loiseau, A.   +4 more
openaire   +3 more sources

Electric Field‐Dependent Conductivity as Probe for Charge Carrier Delocalization and Morphology in Organic Semiconductors

Advanced Functional Materials, EarlyView.
Applying a high electric field to a doped organic semiconductor heats up the charge carrier distribution beyond the lattice temperature, enhancing conductivity. It is shown that the associated effective temperature can be used to extract the effective localization length, which is a characteristic length scale of charge transport and provides ...
Morteza Shokrani, Felix Maximilian Graf, Anton Kompatscher, Dennis Derewjanko, Martijn Kemerink   +4 more
wiley   +1 more source

Toward Controlled Fluidized Bed – Chemical Vapor Deposition of Boron Nitride: Thermochemical Analysis and Microstructural Investigations

Advanced Materials Interfaces
This study examines the optimization and characterization of stoichiometric and carbon‐free boron nitride interphase coatings using triethylamine borane complex as a precursor in the Fluidized Bed Chemical Vapor Deposition process.
Thomas Da Calva Mouillevois, Clément Rivière, Hervé Plaisantin, Jérôme Roger, Teresa Hungria, Georges Chollon, Nathalie Bertrand   +6 more
doaj   +1 more source

Synthesis of G-C3N4/Mxene Composite for Enhanced Photocatalytic Degradation of Eosin Y Dye in Aqueous Solutions Under Visible Light [PDF]

Sustainable Earth Trends
In this study, MXene nanosheets were utilized as a co-catalyst to modify the graphitic carbon nitride photocatalyst and synthesize the g-C3N4/MXene composite.
Mehran Bijari, Afsaneh Shahbazi, Vahid Vatanpour, Habibollah Younesi   +3 more
doaj   +1 more source

Superhydrophilic 2D Carbon Nitrides Prepared by Direct Chemical Vapor Deposition

Small Science, 2023
Surface wetting greatly impacts the performances of many photocatalysts in a water/humid‐involved medium. Carbon nitrides and its isotopes, as emerging metal‐free low‐cost photocatalysts for water splitting, usually require strong chemical or irradiation
Quoc Huy Thi, Ping Man, Lingli Huang, Xin Chen, Jiong Zhao, Thuc Hue Ly   +5 more
doaj   +1 more source

Nested boron nitride and carbon-boron nitride nanocones

Micro & Nano Letters, 2007
In this letter we extend previously established results for nested carbon nanocones to both nested boron nitride and carbon-boron nitride nanocones. Based purely on mechanical principles and classical mathematical modelling techniques, we determine the energetically favourable structures for nested boron nitride and carbon-boron nitride nanocones ...
Baowan, D., Hill, James M
openaire   +3 more sources