Results 151 to 160 of about 1,344,372 (340)

Exciton Dynamics in Layered Halide Perovskite Light‐Emitting Diodes

open access: yesAdvanced Materials, EarlyView.
This review discusses the exciton dynamics in layered halide perovskitelight‐emitting diodes (PeLEDs). It opens with a summary of the structural and photophysical aspects, followed by an exploration of controlling dimensionality and cascade exciton transfer in quasi‐2D PeLEDs.
Sung‐Doo Baek   +5 more
wiley   +1 more source

Exponential attractors for first-order lattice dynamical systems

open access: yesJournal of Mathematical Analysis and Applications, 2008
AbstractIn l2, we investigate the existence of an exponential attractor for the solution semigroup of a first-order lattice dynamical system acting on a closed bounded positively invariant set which needs not to be compact since l2 is infinite dimensional.
openaire   +2 more sources

Covalent Organic Frameworks for Photocatalysis

open access: yesAdvanced Materials, EarlyView.
This review provides an overview of recent advances in covalent organic frameworks (COFs) for photocatalysis, focusing on sustainable energy applications like water splitting, hydrogen peroxide generation, and CO2 and N2 reduction. It discusses design principles, structure‐function relationships, challenges in COF photocatalysis, and strategies to ...
Bikash Mishra   +6 more
wiley   +1 more source

Modulating Trapping in Low‐Dimensional Lead–Tin Halides for Energy‐Efficient Neuromorphic Electronics

open access: yesAdvanced Materials, EarlyView.
Robust 2D Ruddlesden–Popper lead‐tin perovskites demonstrate exceptional resistive switching memory performance after cesium carbonate deposition, achieving a high accuracy of 90.1% in MNIST pattern recognition. Additionally, a novel energy‐efficient content‐addressable memory architecture, based on perovskite memristive devices, is proposed for ...
Lijun Chen   +9 more
wiley   +1 more source

Cosmology of light towers and swampland constraints

open access: yesJournal of High Energy Physics
We study the dynamical evolution of FLRW cosmologies in the presence of a tower of scalar light states and a runaway exponential potential. Some of the attractor solutions have problematic behaviours from the EFT point of view, which we use to argue for ...
Gonzalo F. Casas, Ignacio Ruiz
doaj   +1 more source

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