Results 171 to 180 of about 2,347,924 (407)

Precise Control of Lead Halide and Ammonium Salt Stoichiometric Ratios for Efficient Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Herein, a quantitative deposition method is developed through drop‐on‐demand inkjet printing to study the influence of organic salt deposition surface density on the device performance. Through quantitative organic salt deposition, high‐quality perovskite films with optimal film thickness and minimized defects can be achieved.
Hengyi Jiang   +10 more
wiley   +1 more source

Relational Lorentzian Asymptotically Safe Quantum Gravity: Showcase Model

open access: yesUniverse
In a recent contribution, we identified possible points of contact between the asymptotically safe and canonical approaches to quantum gravity. The idea is to start from the reduced phase space (often called relational) formulation of canonical quantum ...
Renata Ferrero, Thomas Thiemann
doaj   +1 more source

Collision-space-time: Unified quantum gravity

open access: yes, 2019
We have recently presented a unified quantum gravity theory [1]. Here we extend on that work and present an even simpler version of that theory. For about hundred years, modern physics has not been able to build a bridge between quantum mechanics and ...
E. Haug
semanticscholar   +1 more source

Interface Effects in Metal‐2D TMDs Systems: Advancing the Design and Development Electrocatalysts

open access: yesAdvanced Science, EarlyView.
This review examines the role of metal‐2D TMDs interfaces in electrocatalysis, emphasizing design principles and strategies for achieving ohmic contact catalysts. It provides valuable insights into improving energy conversion and storage technologies, highlighting the potential of metal‐2D TMDs composites for enhanced catalytic performance and ...
Hao Hu   +5 more
wiley   +1 more source

Complexity and operator growth for quantum systems in dynamic equilibrium

open access: yesJournal of High Energy Physics
Krylov complexity is a measure of operator growth in quantum systems, based on the number of orthogonal basis vectors needed to approximate the time evolution of an operator.
Cameron Beetar   +4 more
doaj   +1 more source

Photothermal Driven Biomimetic Actuator Based on Asymmetric Microstructure Nb2CTx MXene Film

open access: yesAdvanced Electronic Materials, EarlyView.
A photothermal biomimetic actuator based on niobium carbide (Nb2CTx) MXene films is prepared, and its photothermal actuation performance is studied in terms of optical power density, bending angle, bending speed, and bending curvature. A series of experiments are conducted to explore the potential applications of this actuator in flexible crawling ...
Nan Li   +4 more
wiley   +1 more source

Classical and quantum: a conflict of interest

open access: yes, 2017
We highlight three conflicts between quantum theory and classical general relativity, which make it implausible that a quantum theory of gravity can be arrived at by quantising classical gravity.
A Bassi   +63 more
core   +1 more source

Boon and Bane of Local Solid State Chemistry on the Performance of LSM‐Based Solid Oxide Electrolysis Cells

open access: yesAdvanced Energy Materials, EarlyView.
Cation diffusion causes an increase in the catalytically active MIEC region in solid oxide cells. Simultaneously, it leads to the additional formation and growth of secondary structures in the electrolyte, which reduces the oxygen diffusion. Abstract High‐temperature solid oxide cells are highly efficient energy converters.
Hanna Türk   +21 more
wiley   +1 more source

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