Results 321 to 330 of about 6,985,730 (379)

Diffusion Characteristics of Ru and Oxygen Vacancies in Ta2O5 for Resistive Random Access Memory Devices: A Density Functional Theory Investigation

open access: yesAdvanced Electronic Materials, EarlyView.
Atomistic analysis of ruthenium (Ru) and oxygen vacancy (OV) diffusion in Ta₂O₅‐based memristors is performed. DFT calculations demonstrate interstitial Ru in Ta₂O₅ has lower diffusion barriers and formation energies than OVs, enhancing mobility and stability.
Md. Sherajul Islam   +3 more
wiley   +1 more source

Autonomous Optimization of Air‐Processed Perovskite Solar Cell in a Multidimensional Parameter Space

open access: yesAdvanced Energy Materials, EarlyView.
A machine learning (ML)‐driven autonomous framework is introduced for optimizing the fabrication conditions of air‐processed perovskite solar cells (PSCs). By effectively exploring a complex multidimensional parameter space, the framework identifies optimal conditions for high‐performance PSCs with limited trials.
Jiyun Zhang   +9 more
wiley   +1 more source

Determining Exciton Diffusion Length in Organic Semiconductors: Unifying Macro‐ and Microscopic Perspectives

open access: yesAdvanced Energy Materials, EarlyView.
Exciton diffusion length in organic semiconductor films is determined from encounter/annihilation rates. Non‐normalized exciton densities and proper intrinsic lifetime reference avoid over‐parametrization of the fits. Monte Carlo Simulation of individual molecule‐to‐molecule hops reproduce these results (②) when matching lattice constant and hoping ...
Wenchao Yang   +12 more
wiley   +1 more source

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