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Now showing items 2081-2090 of 2110
Neutron Imaging of Paramagnetic Ions: Electrosorption by Carbon Aerogels and Macroscopic Magnetic Forces
(2021)
The electrosorption of Gd3+ ions from an aqueous 70 mM Gd(NO3)3 solution in monolithic carbon aerogel electrodes was recorded by dynamic neutron imaging. The aerogels have a bimodal pore size distribution consisting of ...
Resonant third-order hyperpolarizabilities of large organic molecules
(1987)
Resonant degenerate four-wave mixing in a number of infrared-absorbing dyeswas studied with 160-psec pulses at 1.064 ?m. Hyperpolarizabilities in the range of 10-44 to 10-42 V-2 m5 were observed. A theoretical model based ...
High resolution STM imaging with oriented single crystalline tips
(APPLIED SURFACE SCIENCE, 2013)
Precise knowledge of the atomic and electronic structure of scanning tunneling microscopy (STM) tips is crucial for a correct interpretation of atomically resolved STM data and an improvement of the spatial resolution. ...
Solution-Processed Heterojunction Photodiodes Based on WSe2 Nanosheet Networks
(2023)
Solution-processed photodetectors incorporating liquid-phase-exfoliatedtransition metal dichalcogenide nanosheets are widely reported. However,previous studies mainly focus on the fabrication of photoconductors, ratherthan ...
Controlled electromigration on vicinal surfaces
(Trinity College (Dublin, Ireland). School of Physics, 2012)
The influence of an electric field on the dynamics of steps, on vicinal surfaces, during high temperature annealing was experimentally studied. An experimental setup was designed, constructed and employed to explicitly ...
Purification and electrical characterisation of nanotube and nanowire - polymer composites
(Trinity College (Dublin, Ireland). School of Physics, 2006)
The yield and purity of multiwalled carbon nanotube (MWNT) soot was maximised by
control of production parameters. The optimal production parameters were found to be J
= 190 A/cm2 and P = 500 Torr achieving a yield of up ...
Enhancing the electronic dimensionality of hybrid organic-inorganic frameworks by hydrogen bonded molecular cations
(2019)
Transition-metal oxides with pyroxene structure, such as alkali-metal metavanadates, are known for their good chemical stability and have been used accordingly in many applications. In this work, we explore the possibility ...
Phyllotactic Description of Hard Sphere Packing in Cylindrical Channels
(2011)
We develop a simple analytical theory that relates dense sphere packings in a cylinder to corresponding disk packings on its surface. It applies for ratios R=D/d (where d and D are the diameters of the hard spheres and the ...