Results 81 to 90 of about 49,255 (246)

Metal‐Less Top Electrode Semitransparent Organic Solar Modules with an Average Visible Transmission of 51% and a Light Utilization Efficiency of 4%

open access: yesAdvanced Science, EarlyView.
Semitransparent organic modules with device areas of 11.4 cm2 are developed for building‐integrated photovoltaics. Including a laser‐structured, metal‐free top electrode, the module achieves a PCE of 6.1% with an AVT of 47.5%. An extended back‐electrode design enhances optical and electrical performance, achieving PCE of 7.9%, AVT of 50.8%, and LUE of ...
Leonie Pap   +8 more
wiley   +1 more source

Metamaterial‐Enhanced Solar‐Driven Processes for Energy Conversion and Water Treatment

open access: yesAdvanced Science, EarlyView.
This review explores how metamaterials revolutionize solar‐driven process for energy conversion and water treatment through enhanced light absorption, LSPR, charge separation, and bandgap engineering. By leveraging unique nanostructures and AI‐guided design, these engineered materials drive CO₂ reduction, water splitting, pollutant degradation, and ...
Xuechen Jing   +6 more
wiley   +1 more source

Dynamics of Periodic Waves in a Neural Field Model

open access: yesMathematics, 2020
Periodic traveling waves are observed in various brain activities, including visual, motor, language, sleep, and so on. There are several neural field models describing periodic waves assuming nonlocal interaction, and possibly, inhibition, time delay or
Nikolai Bessonov   +3 more
doaj   +1 more source

Aperiodic quantum XXZ chains: Renormalization-group results

open access: yes, 2005
We report a comprehensive investigation of the low-energy properties of antiferromagnetic quantum XXZ spin chains with aperiodic couplings. We use an adaptation of the Ma-Dasgupta-Hu renormalization-group method to obtain analytical and numerical results
A. Furusaki   +7 more
core   +1 more source

Chemically‐Disordered Transparent Conductive Perovskites With High Crystalline Fidelity

open access: yesAdvanced Science, EarlyView.
Kinetically arrested, chemically disordered perovskite thin films exhibit exquisite crystalline fidelity, broad IR–UV transparency, and low resistivity, despite incorporating five mismatched 3d–5d cations, including Cr and W. This study unites electronic correlation, cation diversity, valence complexity, and disorder—enabling new transparent conductors
Saeed S. I. Almishal   +18 more
wiley   +1 more source

Quasicrystals and Other Aperiodic Structures in Mineralogy

open access: yesCrystals, 2016
In this article, we first present and discuss eighteenth-century descriptions of minerals that contributed decisively to the development of crystallography.
Carlos M. Pina, Victoria López-Acevedo
doaj   +1 more source

Optimized Multilayer Structures With Ultrabroadband Near-Perfect Absorption

open access: yesIEEE Photonics Journal, 2020
We present aperiodic multilayer structures with ultrabroadband near-perfect absorption in the visible and near-infrared wavelength range. We use a hybrid optimization algorithm coupled with the transfer-matrix method, to optimize both the material ...
Chenglong You   +4 more
doaj   +1 more source

Inspired by Reinforced‐Concrete Structures: High‐Strength, Stable, Sustainable Reed‐Based Plastics

open access: yesAdvanced Science, EarlyView.
Inspired by the structure of reinforced concrete, which develops a composite with high‐strength, stability, fire resistance, and nontoxicity, by using the regular and continuous of reed fiber and thermoset tannin‐based resin. This composite demonstrates potential as a sustainable alternative to conventional petroleum‐derived plastics, with promising ...
Yuhui Huang   +7 more
wiley   +1 more source

New modelling technique for aperiodic-sampling linear systems

open access: yes, 2010
A general input-output modelling technique for aperiodic-sampling linear systems has been developed. The procedure describes the dynamics of the system and includes the sequence of sampling periods among the variables to be handled.
A. FUSTER   +7 more
core   +1 more source

Automatic Determination of Quasicrystalline Patterns from Microscopy Images

open access: yesAdvanced Intelligent Discovery, EarlyView.
This work introduces a user‐friendly machine learning tool to automatically extract and visualize quasicrystalline tiling patterns from atomically resolved microscopy images. It uses feature clustering, nearest‐neighbor analysis, and support vector machines. The method is broadly applicable to various quasicrystalline systems and is released as part of
Tano Kim Kender   +2 more
wiley   +1 more source

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