Results 211 to 220 of about 114,337 (308)

Sub-wavelength optical lattice in 2D materials. [PDF]

Sci Adv
Sarkar S, Mehrabad MJ, Suárez-Forero DG, Gu L, Flower CJ, Xu L, Watanabe K, Taniguchi T, Park S, Jang H, Zhou Y, Hafezi M.   +11 more
europepmc   +1 more source

Exploring Electronic States and Ultrafast Electron Dynamics in AlInP Window Layers: The Role of Surface Reconstruction

Advanced Functional Materials, EarlyView.
This study examines the surface characteristics of AlInP (001), crucial for advanced solar cells and photoelectrochemical devices. Using theoretical modeling and experiments, it identifies how phosphorus‐rich and indium‐rich surfaces create mid‐gap states that pin the Fermi level and influence ultrafast electron dynamics.
Mohammad Amin Zare Pour, Sahar Shekarabi, Isaac Azahel Ruiz Alvarado, Jonathan Diederich, Yuyings Gao, Agnieszka Paszuk, Dominik C. Moritz, Wolfram Jaegermann, Dennis Friedrich, Roel van de Krol, Wolf Gero Schmidt, Thomas Hannappel   +11 more
wiley   +1 more source

Enhanced and directional electroluminescence from MicroLEDs using metallic or dielectric metasurfaces. [PDF]

Commun Eng
Abdelkhalik MS, Garcia-Santiago X, van Raaij TJ, López T, Berghuis AM, de Jong LMA, Gómez Rivas J.   +6 more
europepmc   +1 more source

Rigid Fluorescent Indacenetetraone‐Based Semiconducting Polymers via Knoevenagel Condensation

Advanced Functional Materials, EarlyView.
New donor–acceptor polymers prepared by Knoevenagel condensation of indacenedithiophene‐ and indacenedifuran‐based aldehydes reveal an exceptionally rigid backbone, which is manifested in the remarkably narrow absorption and emission bands in red to near‐infrared region.
So‐Huei Kang, Pegah Ghamari, Cory Ruchlin, Yuxuan Che, Zhechang He, Quentin Chan, Federico Rosei, Dmytro F. Perepichka   +7 more
wiley   +1 more source

Anti-aliased metasurfaces beyond the Nyquist limit. [PDF]

Nat Commun
Kim S, Kim J, Kim K, Jeong M, Rho J.
europepmc   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Ultranarrow-linewidth wavelength-vortex metasurface holography. [PDF]

Sci Adv
Meng W, Fröch JE, Cheng K, Pi D, Li B, Majumdar A, Maier SA, Ren H, Gu M, Fang X.   +9 more
europepmc   +1 more source

A Homeostatic Photonic Device Integrating Vapor‐Regulated Thermo‐Optical Feedback Mechanisms

Advanced Functional Materials, EarlyView.
An inorganic homeostatic photonic device is designed to autonomously regulate light, temperature, and vapor sorption through integrated positive and negative feedback mechanisms at multiple wavelengths. The device uses a graded mesoporous 1D photonic crystal coupled with a photothermal layer.
Caroline Byun, Davide R. Ceratti, Clémence Mimoso, Cédric Boissière, Marco Faustini   +4 more
wiley   +1 more source

A critical step toward far-field laboratory diffraction contrast tomography in Laue focusing geometry. [PDF]

J Appl Crystallogr
Zhang Y, Lindkvist A.
europepmc   +1 more source

Hyperbranched Interpenetrating Hydrogen Bond Network (HIHBN) Proton Exchange Membrane for Fuel Cells Above 220 °C

Advanced Functional Materials, EarlyView.
A novel polymer electrolyte membrane with a hyperbranched interpenetrating hydrogen bond network structure is developed. The unique structure of the hyperbranched polymer contributes to a high glass transition temperature exceeding 400 °C, enabling its operation at elevated temperatures for fuel cell applications.
Lingping Zeng, Dehua Dong, Jun Lu, Kaiqiang He, Xiangcheng Liu, Jianchuan Wang, Zidong Wei, Matthieu Gresil, Julian Ratcliffe, Zhikao Li, Huanting Wang   +10 more
wiley   +1 more source