Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells
Advanced Materials, EarlyView.Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang +14 more
wiley +1 more source
Fractional-order mathematical modeling of toxoplasmosis transmission dynamics with harmonic mean-type incidence rate. [PDF]
Sci RepAsif M +5 more
europepmc +1 more source
Advanced Materials, EarlyView.The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela +4 more
wiley +1 more source
Mean arterial pressure as the harmonic mean of systolic and diastolic blood pressure in radial and femoral arteries during early septic shock resuscitation. [PDF]
Br J AnaesthChemla D +5 more
europepmc +1 more source
An inequality for arithmetic and harmonic means
The following result is proved: If \(A_ n\) and \(H_ n\) (resp. \(A_ n'\) and \(H_ n')\) denote the arithmetic and harmonic means of \(x_ 1,\ldots,x_ n\) (resp. \(1-x_ 1,\ldots,1-x_ n)\) with \(x_ i\in(0,1/2]\) \((i=1,\ldots,n)\), then \[ H_ n-H_ n'\leq A_ n-A_ n', \] with equality if and only if \(x_ 1=\cdots=x_ n\).
openaire +1 more source
Harmonic Expectation of Harmonic Mean of Random Variables
An interesting property of harmonic expectation, whose concept had been introduced on the basis of harmonic mean, and which was consequently defined mathematically, has been identified in the current attempt. The property describes an interesting result on harmonic expectation of harmonic mean of random variables.
openaire +2 more sources
Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures
Advanced Materials, EarlyView.Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin +4 more
wiley +1 more source
Optimal control strategies for toxoplasmosis disease transmission dynamics via harmonic mean-type incident rate. [PDF]
Sci RepKhan U +5 more
europepmc +1 more source
Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix
Advanced Materials, EarlyView.3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández +15 more
wiley +1 more source
Advanced Materials, EarlyView.ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald +7 more
wiley +1 more source