Results 101 to 110 of about 218,219 (240)

Fabrication of nitrogen-hyperdoped silicon by high-pressure gas immersion excimer laser doping

open access: yesScientific Reports
In recent years, research on hyperdoped semiconductors has accelerated, displaying dopant concentrations far exceeding solubility limits to surpass the limitations of conventionally doped materials.
Josh W. Barkby   +7 more
doaj   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

Design and optoelectronic profiling of a semicrystalline thiophene–phenylene copolymer for advanced organic electronics

open access: yesPolymer International, EarlyView.
A new semicrystalline copolymer, PTBT‐3OBu, was synthesized. Intramolecular S···O conformational locks induce high backbone planarity, promoting strong interchain coupling and molecular ordering in thin films, seen in an optical red shift. This synergy between planarity and semicrystalline morphology is promising for photovoltaic and electrochromic ...
Sandra Lúcia Nogueira   +7 more
wiley   +1 more source

Ultrathin Freestanding BiFeO3 Membranes Grown by Pulsed Laser Deposition

open access: yesSmall, EarlyView.
Ultrathin freestanding BiFeO3 membranes down to five‐unit cells are realized by pulsed laser deposition using a water‐soluble Sr3Al2O6 sacrificial layer. Strontium diffusion is revealed to drive the spontaneous formation of an Aurivillius‐like phase, while ultrathin SrRuO3 interlayers suppress interfacial intermixing, preserve polar tetragonality, and ...
Yifan Zhao   +4 more
wiley   +1 more source

Injection locking of excimer lasers [PDF]

open access: yes, 1981
Reliable injection locking of high-power unstable resonator excimer lasers can be achieved with extremely low reference oscillator power.
Bigio, I.J., Slatkine, M.
core  

Seeded Growth of Plasmonic Core‐Shell NU‐1000 NanoMOFs With Intracellular Optical Readout

open access: yesSmall, EarlyView.
Seed‐mediated growth yields plasmonic core‐shell nanocomposites by encapsulating gold nanoparticles within NU‐1000 nanoMOFs, preserving morphology and optical response. The materials exhibit tunable photoluminescence quenching, efficient photothermal heating, and SERS activity.
Manuel Ceballos   +9 more
wiley   +1 more source

Processing of polycarbonate by high-repetition rate ArF excimer laser radiation

open access: yes, 2022
S.557-561Precise ablation of polymers is a challenging task for excimer lasers emitting in the ultraviolet. Excellent edge definition and surface quality can be achieved, but efficiency and processing speed are limited due to losses induced by the masks.
Jacobs, P.   +5 more
core   +1 more source

Treatment of moderate-to-high hyperopia with the WaveLight Allegretto 400 and EX500 excimer laser systems

open access: yesClinical Ophthalmology, 2017
Manoj Motwani,1 Ronald Pei1,21Motwani LASIK Institute, San Diego, 2Precision Outcome Consultants, Fresno, CA, USAPurpose: To evaluate the efficacy of treating patients with +3.00 diopters (D) to +6.00 D of hyperopia via laser-assisted in situ ...
Motwani M, Pei R
doaj  

A Polar Topology Network Induces Elastic Stiffening in Ferroelectric Oxide Superlattices

open access: yesSmall, EarlyView.
The periodicity in BiFeO3/SrTiO3 superlattices tunes the system into a dense, elastically constrained polar texture state. This topology‐rich regime reveals a collective mechanical response in which interactions among polar topological defects restrict local deformations, producing a pronounced elastic stiffening.
Mohammad Moein Seyfouri   +10 more
wiley   +1 more source

Electrode Oxygen Exchange Enables Polarity‐Controlled Resistive Switching in Topotactic SrCoO2.5

open access: yesSmall, EarlyView.
Electrode chemistry controls the polarity of resistive switching in topotactic SrCoO2.5 heterostructures. Au/SrCoO2.5/Nb‐SrTiO3 (Nb‐SrTiO3: conductive substrate) exhibits polarity‐restricted switching, whereas SrRuO3/SrCoO2.5/Nb‐SrTiO3 switches under both bias polarities.
Rajan Mishra   +16 more
wiley   +1 more source

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