Browsing Chemistry by Title
Now showing items 841-860 of 1270
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Quantifying Graphitic Edge Exposure in Graphene-Based Materials and Its Role in Oxygen Reduction Reactions
(2016)Oxygen electrochemistry is at the core of several emerging energy conversion technologies. The role of carbon nanostructures in the electrocatalysis of the oxygen reduction reaction is not well understood. Herein we report ... -
Quantitative Structure-Property Relationship Modelling for the Prediction of Singlet Oxygen Generation by Heavy-Atom-Free BODIPY Photosensitizers
(2021)Heavy-atom-free sensitizers forming long-living triplet excited states via the spin-orbit charge transfer intersystem crossing (SOCT-ISC) process have recently attracted attention due to their potential to replace costly ... -
"Quantitative study of the photothermal properties of metallic nanowire networks"
(2015)In this article, we present a comprehensive investigation of the photothermal properties of plasmonic nanowire networks. We measure the local steady-state temperature increase, heat source density, and absorption in Ag, ... -
Quantum confinement-induced semimetal-to-semiconductor evolution in large-area ultra-thin PtSe2 films grown at 400 °C
(2019)In this work, we present a comprehensive theoretical and experimental study of quantum confinement in layered platinum diselenide (PtSe2) films as a function offilm thickness. Our electrical measurements, in combination ... -
Quantum dots and quantum dot based polymer composites
(Trinity College (Dublin, Ireland). School of Chemistry, 2013)The main aim of this thesis is to develop a range of new nanomaterials and composite materials based on fluorescent semiconducting nanoparticles (quantum dots). The work involves the synthesis and characterisation of various ... -
Quantum point contacts and resistive switching in Ni/NiO nanowire junctions
(2016)Metal oxide devices that exhibit resistive swi tching are leading candidates for non-volatile memory applications due to their potential for fast switching, low-power operation, and high device density. It is widely ... -
Quanutm dot metal nanoparticle based composites for biomedical applications
(Trinity College (Dublin, Ireland). School of Chemistry, 2013)The main aim of this project is to develop a range of nanocomposite materials based on gold and silver nanostructures and semiconductor nanoparticles, or quantum dots (QDs). The work involves the synthesis, functionalisation ... -
Quasiparticle GW Calculations on Lead-Free Hybrid Germanium Iodide Perovskite CH <inf>3</inf> NH <inf>3</inf> GeI <inf>3</inf> for Photovoltaic Applications
(2019)Lead-free organic−inorganic halide perovskites have gained much attention as nontoxic alternatives to CH3NH3PbI3 in next-generation solar cells. In this study, we have examined the geometric and electronic properties of ... -
{rac-5-[Meth-oxy(phen-yl)meth-yl]-10,20-diphenyl-porphyrinato}nickel(II)
(2011)The title compound, [Ni(C40H28N4O)], was obtained from a Grignard reaction of the respective formyl-porphyrin to yield {5-[hy-droxy(phen-yl)meth-yl]-10,20-diphenyl-porphyrinato}nickel(II), followed by crystallization from ... -
Radical-mediated thiol–ene ‘click’ reactions in deep eutectic solvents for bioconjugation
(2022)Herein, we report the first application of deep eutectic solvents (DESs) in radical-mediated hydrothiolation reactions. Under UV and atmospheric-oxygen mediated conditions, the thiol–ene reac tion was applied to amino ... -
Raman modes of index-identified freestanding single-walled carbon nanotubes
(2005)Using electron diffraction on freestanding single-walled carbon nanotubes, we have determined the structural indices (n,m) of tubes in the diameter range from 1.4 to 3 nm. On the same freestanding tubes, we have recorded ... -
Rapid and Large-Area Visualization of Grain Boundaries in MoS 2 on SiO 2 Using Vapor Hydrofluoric Acid
(2020)Grain boundaries in two-dimensional (2D) material layers have an impact on their electrical, optoelectronic, and mechanical properties. Therefore, the availability of simple large-area characterization approaches that can ... -
Rapid Iron(III)¿Fluoride¿Mediated Hydrogen Atom Transfer
(2021)We anticipate high-valent metal-fluoride species will be highly effective hydrogen atom transfer (HAT) oxidants because of the magnitude of the H-F bond (in the product) that drives HAT oxidation. We prepared a dimeric ... -
Reaction of porphyrin-based surface-anchored metal?organic frameworks caused by prolonged illumination
(2018)Crystalline surface-anchored metal–organic framework (SURMOF) thin films made from porphyrin-based organic linkers have recently been used in both photon upconversion and photovoltaic applications. While these studies ... -
Reactions of 2-Oxo-2H-1-benzopyran-3-carbonitrile
(1998)Synthetic reactions of2-oxo-2H -1-benzopyran-3-carbonitrile afford productswhich establish that partial or complete cleavage of the startingmaterial occurs in the course of reaction. -
The reactivity of diazabutadienes towards low oxidation state group 13 iodides and the synthesis of a new gallium(I) carbene analogue
(2002)The reactions of two diazabutadiene ligands, Ar-DAB [(ArN[double bond, length as m-dash]CH)2 , Ar = 2,6-Pri2C6H3] and But-DAB [(ButN[double bond, length as m-dash]CH)2] with either GaI or an AlI3/Al mixture have afforded ...