Results 121 to 130 of about 4,004,079 (302)

Role of Structural Disorder on Phonon Transport and Thermal Conductivity in Li6PS5Br

Advanced Functional Materials, EarlyView.
Solid electrolytes are fast ion and slow heat conductors. Although both transport properties are governed by lattice dynamics and atomic structure, their interplay remains poorly understood. Here, we study this interrelation in anion‐ordered and disordered Li6PS5Br.
Lukas Ketter, Ryoma Sasaki, Kyra Strotmann, Wolfgang G. Zeier, Yoshitaka Tateyama   +4 more
wiley   +1 more source

Combining the independent pixel and point-spread function approaches to simulate the actinic radiation field in moderately inhomogeneous 3D cloudy media [PDF]

, 2008
Field observations and three-dimensional (3D) radiative transfer (RT) simulations of the actinic flux density show strongly pronounced local variations in the presence of inhomogeneous cloud fields which depend on the spatial distribution of the clouds ...
Kniffka, Anke, Trautmann, Thomas
core  

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

Mahakala: A Python-based Modular Ray-tracing and Radiative Transfer Algorithm for Curved Spacetimes

The Astrophysical Journal
We introduce Mahakala , a Python -based, modular, radiative ray-tracing code for curved spacetimes. We employ Google’s JAX framework for accelerated automatic differentiation, which can efficiently compute Christoffel symbols directly from the metric ...
Aniket Sharma, Lia Medeiros, George N. Wong, Chi-kwan Chan, Goni Halevi, Patrick D. Mullen, James M. Stone   +6 more
doaj   +1 more source

Exact G-functions for various leaf normal distribution functions applied to analytical two-stream radiative transport in turbid vegetation media [PDF]

, 2008
In the radiative transfer theory for turbid vegetation media one defines leaf normal distribution (LND) functions to describe the orientation of the model leaves’ normal vectors. For simulation purposes, standard LNDs are frequently assumed, e.g. based
Otto, Sebastian, Trautmann, Thomas
core  

Managing Charge Transport and Exciton Generation for Highly Efficient, Bright, and Stable Near‐Infrared Organic Radical Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
High‐performing near‐infrared (NIR) organic light‐emitting diodes are demonstrated using an efficient and stable 800 nm‐emissive organic radical and a thermally activated delayed fluorescence (TADF) host. TADF‐assisted exciton generation combined with improved charge transport enables high external quantum efficiency (>8%), high radiance (>70,000 mW sr−
Hwan‐Hee Cho, Min‐Hsuan Chang, Yi‐Syun Chen, Tetsuro Kusamoto, Emrys W. Evans, Yuh‐Renn Wu, Richard H. Friend   +6 more
wiley   +1 more source

3D Monte Carlo radiative transfer simulations for fractal-shaped cloud patterns

The Monte Carlo Atmospheric Radiative Transfer Simulator (MCARaTS) is used to perform 3D radiative transfer simulations for 4 different fractal-shaped cloud patterns to study how horizontal radiative energy exchanges between cloud-free and cloudy regions
Yang, Ping, Ren, Tong
core   +1 more source

Unexpected Asymmetric Mn‐Sb Site Mixing and Reentrant Spin‐Glass State of MnSb2Te4

Advanced Functional Materials, EarlyView.
MnSb2Te4 is an intrinsic magnetic topological insulator. Its properties are extraordinarily sensitive to tiny defects, making structural studies essential for understanding how magnetism and topology work together. This work shows that Mn can be unevenly distributed within the crystal and how that disorder is linked to a newly reported spin‐glass state
Gustavo Chavez Ponce de Leon, Ahmad Dibajeh, Gert ten Brink, Majid Ahmadi, Suyang Sun, Wei Zhang, Bart Jan Kooi, George Palasantzas   +7 more
wiley   +1 more source

The Micro-Macro Model for Transient Radiative Transfer Simulations

, 2014
International audienceThe micro-macro model is investigated for transient radiative transfer simulations with the discrete-ordinate method. The model decomposes the radiative intensity into its macroscopic and its mesoscopic parts.
Crouseilles, Nicolas, Nicolas Crouseilles, Maxime Roger, Pedro J. Coelho, Roger, Maxime, Coelho, Pedro J   +5 more
core   +1 more source

Insulating‐Passivating Interfaces for Narrow‐Bandgap Tin‐Lead Perovskites Enable High‐Photovoltage in Single‐ and Double‐Junction Solar Cells

Advanced Functional Materials, EarlyView.
Combining field‐effect surface passivation of a narrow‐bandgap tin–lead perovskite by diammonium ions with introducing oleyl‐based amphiphiles to create insulating interface layers between the absorber and the adjacent hole and electron transporting layers increases the open‐circuit voltage to 91.5% of the detailed‐balance limit and enhances the power ...
Vishnu Vijayakumar, Christ H. L. Weijtens, Laura Bellini, Nick R. M. Schipper, Isabella Taupitz, Maxim Simmonds, Johannes C. Lambooij, Anuja Vijayan, Lana M. Kessels, Simon V. Quiroz Monnens, Guus J. W. Aalbers, Willemijn H. M. Remmerswaal, Stefan C. J. Meskers, Shuaifeng Hu, Junke Wang, Martijn M. Wienk, Henry J. Snaith, Steve Albrecht, René A. J. Janssen   +18 more
wiley   +1 more source