Results 81 to 90 of about 148,659 (287)

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Spectroscopic imaging of biological tissue components by non-contact optical scanning based on the detection of ultrasound induced by mid-infrared laser radiation

Applied Physics Express
A biological spectral imaging system based on photoacoustic spectroscopy is proposed for real-time in vivo measurements of biological samples. The system irradiates biological samples with mid-infrared laser light modulated at several hundred kilohertz ...
Nozomi Tanaka, Yuji Matsuura
doaj   +1 more source

The Role of Ultra‐Thin Buffer Layers for Achieving Ultra‐Low Dark Currents in Single‐Component Organic Photodetectors

Advanced Functional Materials, EarlyView.
Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber, Ying Sun, Jakob Wolansky, Louis Conrad Winkler, Anna‐Lena Hofmann, Fred Kretschmer, Hrisheekesh Thachoth Chandran, Tianyi Zhang, Mike Hambsch, Stefan C. B. Mannsfeld, Karl Leo, Ji‐Seon Kim, Johannes Benduhn   +12 more
wiley   +1 more source

Complex refractive index spectra of whole blood and aqueous solutions of anticoagulants, analgesics and buffers in the mid-infrared

Scientific Reports, 2017
Mid-infrared (MIR) spectroscopy is a powerful tool for characterising the vibrations of molecular bonds and is therefore ideal for label-free detection of chemical species. Recent research into thin-film deposition and etching techniques for mid-infrared
David J. Rowe, David Smith, James S. Wilkinson   +2 more
doaj   +1 more source

Strong absorption and selective thermal emission from a mid-infrared metamaterial

, 2011
We demonstrate thin-film metamaterials with resonances in the mid-infrared wavelength range. Our structures are numerically modeled and experimentally characterized by reflection and angularly-resolved thermal emission spectroscopy. We demonstrate strong
D. Wasserman, J. A. Mason, Rytov S. M., S. Smith   +3 more
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Rotationally Resolved Mid-infrared Spectroscopy of (16) Psyche

The Planetary Science Journal
Asteroid (16) Psyche is theorized to be an exposed iron core of a primordial asteroid and is the target of the upcoming NASA Psyche mission. Recent observations of Psyche identified the presence of rotational heterogeneity, a fine-grained regolith ...
Anicia Arredondo, Margaret M. McAdam, Tracy M. Becker, Linda Elkins-Tanton, Zoe Landsman, Thomas Müller   +5 more
doaj   +1 more source

Mid-Infrared Fiber Amplification of a DFB Interband Cascade Laser

Photonics
The limited availability of powerful, tunable, and reliable mid-infrared sources has historically prevented their widespread adoption in spectroscopy applications, even if most greenhouse gases’ fundamental absorption lines are found in this region of ...
Louis-Charles Michaud, Tommy Boilard, Réal Vallée, Martin Bernier   +3 more
doaj   +1 more source

Mid-Infrared Spectroscopy of Optically Faint Extragalactic 70 micron Sources

, 2009
We present mid-infrared spectra of sixteen optically faint sources with 70 micron fluxes in the range 19-38mJy.
Armus, Aussel, Babbedge, Barger, Blain, Borys, Brand, Brandl, Bridge, Bushouse, C. J. Lonsdale, Chapman, Chapman, Chapman, D. Farrah, D. Weedman, Davoodi, Farrah, Farrah, Farrah, Fazio, Genzel, H. E. Smith, Hauser, Houck, Houck, Houck, Huynh, Imanishi, Iwasawa, J. Houck, Khan, Le Floc'h, Levenson, M. Polletta, M. Rowan-Robinson, Oliver, Pope, Pozzi, Puget, Rieke, Rigopoulou, Rowan-Robinson, Rowan-Robinson, Shupe, Siana, Sirocky, Smail, Spoon, Surace, Takata, Valiante, Veilleux, Weedman, Weedman, Weedman, Weedman, Weedman, Werner, Yan, Zauderer   +60 more
core   +1 more source