Results 261 to 270 of about 641,342 (317)

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita, Lucas R. L. Norg, Patrick Diederen, Clint van Hoesel, Christ H. L. Weijtens, Peter A. Bobbert, Reinder Coehoorn   +6 more
wiley   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

Advanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade, Mario Fratschko, Robbin Steentjes, Mercedes Linares‐Moreau, Paolo Falcaro, Christof Wöll, Roland Resel, Egbert Zojer   +7 more
wiley   +1 more source

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VERTICAL DIFFERENTIATION AND THE DISTRIBUTION OF INCOME

Bulletin of Economic Research, 2006
The paper analyses the effects of income concentration on the behaviour of a duopoly with vertical product differentiation and uncovered market. By using a trapezoid distribution, we solve explicitly for market equilibrium as a function of a mean preserving spread of the income distribution. We show that overall more concentrated incomes imply stronger
BENASSI, CORRADO, A. Chirco, C. Colombo
openaire   +4 more sources

Distributing vertices on Hamiltonian cycles

Journal of Graph Theory, 2011
AbstractLet G be a graph of order n and 3≤t≤n/4 be an integer. Recently, Kaneko and Yoshimoto [J Combin Theory Ser B 81(1) (2001), 100–109] provided a sharp δ(G) condition such that for any set X of t vertices, G contains a hamiltonian cycle H so that the distance along H between any two vertices of X is at least n/2t.
Faudree, Ralph J., Gould, Ronald, Jacobson, Michael S., Magnant, Colton   +3 more
openaire   +2 more sources

On the vertical distribution of 〈ũw̃〉

Coastal Engineering, 1995
Abstract The aim of this paper is to present an analytical expression for the vertical distribution of the correlation between the horizontal (ũ) and vertical (w) wave velocity components. This quantity, 〈ũw〉, which appears explicitly in the time-averaged momentum balance equations, has been shown to play an important role in the vertical ...
Francisco J. Rivero, Agustín S. Arcilla
openaire   +1 more source

The Vertical Distribution of Halocarbons in the Stratosphere

1985
By means of cryogenic sampling and subsequent gaschromatographic analysis vertical profiles of CCl4, CFC13, CF2C12, CF3CI, CF4, C2F3C13, C2F4Cl2, C2F5C1, C2F6, CH3C1, CH3CC13 and CHF2C1 were derived up to 35 km. Halocarbon profiles computed with one-dimensional and two-dimensional models fall off less rapidly with height than the measured profiles ...
Fabian, P., Borchers, R., Gömer, D., Krüger, B., Lal, S., Penkett, S.   +5 more
openaire   +2 more sources

Vertical Distribution of Atmospheric Ozone

Nature, 1951
ON February 25, March 4, March 16 and April 18, 1950, sounding-balloon flights were carried out for the spectrographic determination of the vertical distribution of ozone in the lower stratosphere.
openaire   +2 more sources

ADVERTISING DECISIONS IN A VERTICAL DISTRIBUTION CHANNEL

International Game Theory Review, 2009
A manufacturer and a retailer are the members of a simple distribution channel for a particular product in a segmented market. The advertising efforts of the two agents have a joint effect on the goodwill of the different market segments and then on the demand. The channel members aim at maximizing their profits, by choosing suitable advertising media
openaire   +3 more sources