Results 161 to 170 of about 1,920,107 (363)

High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer

open access: yesAdvanced Materials, EarlyView.
A crystalline 2D polybenzimidazole polymer (2DPBI), incorporating a porphyrin‐based π‐system linked via 1,3‐diazole units, is synthesized on the water surface over large areas. The 2DPBI thin‐film exhibits high charge carrier mobility (≈240 cm2 V−1 s−1, measured by terahertz spectroscopy), strong photoresponse, and band‐like transport, enabling ...
Anupam Prasoon   +20 more
wiley   +1 more source

Epithelial downgrowth after femtosecond laser-assisted cataract surgery

open access: yesAmerican Journal of Ophthalmology Case Reports, 2019
Purpose: To present the case of a 72-year-old female with epithelial downgrowth after femtosecond laser-assisted cataract surgery. Observations: The patient previously underwent YAG vitreolysis after uncomplicated femtosecond laser-assisted cataract ...
Han Kim   +3 more
doaj  

Direct Link between Microwave and Optical Frequencies with a 300 THz Femtosecond Laser Comb [PDF]

open access: bronze, 2000
Scott A. Diddams   +9 more
openalex   +1 more source

Catalytically Active Light Printed Microstructures

open access: yesAdvanced Materials, EarlyView.
The fabrication of micro‐ and macro‐scale 3D‐printed multi‐material structures incorporating photocatalytically active Ru(II) sites using a dual‐function photoresin is introduced. The system utilizes a Ru(II)‐functionalized monomer, enabling the assembly of 3D structures with commercially available crosslinkers.
Alicia K. Finch   +4 more
wiley   +1 more source

Deep Eutectic Inks for Multiphoton 3D Laser Microprinting

open access: yesAdvanced Materials, EarlyView.
Using deep eutectic inks in multiphoton 3D laser printing enables excellent printability of soft and elastic complex 3D microstructures. This is achieved by employing supramolecular interactions between a variety of monomers and a metal halide, which is easily removed during development. The new ink design is extendable to other monomer compositions to
Philipp Mainik   +4 more
wiley   +1 more source

Single femtosecond laser pulse–induced valence state conversion in BaFCl: Sm3+ nanocrystals for low-threshold optical storage

open access: yesNanophotonics
Femtosecond laser-induced valence state conversion (VC) in solid materials has attracted significant research attention due to its potential application in ultra-high density optical storage, boasting advantages such as ultra-high recording speed, easy ...
Zheng Biao   +7 more
doaj   +1 more source

3D Acoustic Imaging Hitting the Diffraction Limit via Fully Parameter‐Optimized Meta‐Lens and Frequency‐Domain Reconstruction

open access: yesAdvanced Materials, EarlyView.
This article employs a binary genetic algorithm to design an ultra‐fine ultrasonic meta‐lens, achieving lateral super‐resolution imaging in the far field (>20λ₀). Building on this, longitudinal resolution is effectively restored through frequency domain reconstruction.
Zong‐Lin Li   +11 more
wiley   +1 more source

Spatially Controlled 3‐D Multiplexed Aptamer Patterning in Hydrogels

open access: yesAdvanced Materials Interfaces, EarlyView.
A hydrogel platform based on norbornene‐functionalized polyvinyl alcohol enables high‐resolution, 3‐D multiplexed patterning of DNA aptamers via two‐photon polymerization. Two distinct aptamers are covalently immobilized with single micron‐scale precision across the x, y, and z dimensions.
Kevin Roost   +9 more
wiley   +1 more source

Phase Distribution in Quasi‐2D Dion Jacobson Perovskite Dictates Ultrafast Energy Transfer and Directional Charge Transport

open access: yesAdvanced Materials Interfaces, EarlyView.
An efficient charge transfer and energy transfer at heterostructure interfaces is vital for optoelectronics. Quasi‐2D perovskites with varying layer thicknesses can create multiple interfaces, hindering charge transfer and energy transfer. Cesium Iodide (CsI) can help to redistribute these phases strategically, thereby enhancing energy transfer and ...
Nilesh G. Saykar   +5 more
wiley   +1 more source

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