Results 71 to 80 of about 5,944,358 (312)

General Strategy for Improving the Quantum Efficiency of Photoredox Hydroamidation Catalysis.

Journal of the American Chemical Society, 2018
The quantum efficiency in photoredox catalysis is the crucial determinant of energy intensity and, thus, is intrinsically tied to the sustainability of the overall process.
Serge Ruccolo, Yangzhong Qin, C. Schnedermann, D. Nocera   +3 more
semanticscholar   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

Advanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui, S. M. Hossein Hejazi, Jan Navrátil, Hana Kmentová, Petr Bábor, Olivier Henrotte, Luca Mascaretti, Matteo Bisetto, Stephen K. Sanders, Andrea Schirato, Michal Otyepka, Piotr Błoński, Tiziano Montini, Radek Zboril, Paolo Fornasiero, Alessandro Alabastri, Alberto Naldoni, Stepan Kment   +17 more
wiley   +1 more source

3D Lattices of Core/Shell Ge/Mn Quantum Dots in an Alumina Matrix: Structure, Fabrication, and Photo-Electrical Properties

Nanomaterials
Materials consisting of quantum dots with a semiconductor-core, metal–shell structure often have exciting and tunable photo-electrical properties in a large range of values, and they are adjustable by core and shell structure parameters.
Ivana Periša, Gabrijela Svalina, Mile Ivanda, Marija Tkalčević, Sigrid Bernstorff, Maja Mičetić   +5 more
doaj   +1 more source

Single Photon Counting UV Solar-Blind Detectors Using Silicon and III-Nitride Materials

Sensors, 2016
Ultraviolet (UV) studies in astronomy, cosmology, planetary studies, biological and medical applications often require precision detection of faint objects and in many cases require photon-counting detection.
Shouleh Nikzad, Michael Hoenk, April D. Jewell, John J. Hennessy, Alexander G. Carver, Todd J. Jones, Timothy M. Goodsall, Erika T. Hamden, Puneet Suvarna, J. Bulmer, F. Shahedipour-Sandvik, Edoardo Charbon, Preethi Padmanabhan, Bruce Hancock, L. Douglas Bell   +14 more
doaj   +1 more source

High Performance Plasmonic Nanolasers with External Quantum Efficiency Exceeding 10.

Nano letters (Print), 2018
Plasmonic nanolasers break the diffraction limit for an optical oscillator, which brings new capabilities for various applications ranging from on-chip optical interconnector to biomedical sensing and imaging. However, the inevitably accompanied metallic
Suo Wang, Hua-Zhou Chen, R. Ma
semanticscholar   +1 more source

A bilateral interfacial passivation strategy promoting efficiency and stability of perovskite quantum dot light-emitting diodes

Nature Communications, 2020
Perovskite quantum-dot-based light-emitting diodes (QLEDs) possess the features of wide gamut and real color expression, which have been considered as candidates for high-quality lightings and displays. However, massive defects are prone to be reproduced
Leimeng Xu, Jianhai Li, B. Cai, Jizhong Song, Fengjuan Zhang, Tao Fang, H. Zeng   +6 more
semanticscholar   +1 more source

2D Multifunctional Spin‐Orbit Coupled Dirac Nodal Line Materials

Advanced Functional Materials, EarlyView.
A total of 473 nonmagnetic and antiferromagnetic 2D spin‐orbit coupled Dirac nodal line materials are screened, spanning 5 layer groups and 12 magnetic space groups. Furthermore, it integrates their topological properties with electride, multiferroic, and magnetic characteristics, revealing unique systems with expanded functionalities and promising ...
Weizhen Meng, Ying Liu, Jialin Gong, Yalong Jiao, Xiaoming Zhang, Wenxian Li, Zhenxiang Cheng, Tie Yang   +7 more
wiley   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Infrared photodetectors based on InAsP epitaxial nanowires on silicon

St. Petersburg Polytechnical University Journal: Physics and Mathematics
In the paper, the upgraded technology of forming the epitaxial arrays of InAsP nanowires (NWs) synthesized on silicon substrates using molecular beam epitaxy has been presented. The optical and electrophysical properties of the NWs were studied. Based on
Goltaev Aleksandr, Fedina Sergey, Fedorov Vladimir, Mozharov Alexey, Novikova Kristina, Maksimova Alina, Baranov Artem, Kaveev Andrey, Pavlov Alexander, Miniv Dmitry, Ustimenko Ratmir, Vinnichenko Maksim, Mukhin Ivan   +12 more
doaj   +1 more source

Pushing the Efficiency-Regret Pareto Frontier for Online Learning of Portfolios and Quantum States [PDF]

, 2022
Julian Zimmert, Naman Agarwal, Satyen Kale   +2 more
openalex   +1 more source