Results 201 to 210 of about 1,253,726 (284)

Electron Extraction Optimization for Carbon‐Based Hole‐Conductor‐Free Perovskite Photovoltaics With Record 1.41 V VOC

open access: yesAdvanced Materials, EarlyView.
A gradient electron energy level strategy is constructed to reduce voltage losses in planar HTL‐free CsPbI2Br C‐PSCs. This electron extraction optimization enables rapid photogenerated electron extraction and carrier separation, thereby suppressing recombination at the back contact. The resulting PSCs deliver a record VOC of 1.41 V, a high PCE of 17.42%
Zhiqi Li   +13 more
wiley   +1 more source

Hybrid DNA Origami – Graphene Platform for Electrically‐Gated Nanoscale Motion

open access: yesAdvanced Materials Interfaces, EarlyView.
A hybrid DNA origami‐graphene architecture is employed in a nearfield sensing device for optical distance assessment in biosensors and biorecognition purposes. Using Fluorescence Lifetime Imaging Microscopy (FLIM), a nearfield quenching model is verified and test the device response under several electrostatic gating conditions, which leads to changes ...
João D. G. Azevedo   +10 more
wiley   +1 more source

Research on the Evolution of Defects Initiation and the Diffusion of Dopant on the Si/SiO2 Interface

open access: yesAdvanced Materials Interfaces, EarlyView.
This review mainly introduces the recent investigations on the mechanisms of interface defect initiation and dopant diffusion, and the comparisons and discussions of the initial mechanism of defects, structures of defects to provide valuable guidance for improving the performance and extending the lifespan of Si/SiO2 interfaces.
Yunqi Yang   +7 more
wiley   +1 more source

Multi‐Dimensional Nano‐Additives for Their Superlubricity: Tribological Behaviors and Lubrication Mechanisms

open access: yesAdvanced Materials Interfaces, EarlyView.
This paper systematically introduces the characteristics and functions of 0D‐3D nanomaterials in super‐lubrication, analyzes the lubrication mechanism of these nanomaterials, and prospects the energy‐saving and environmental benefits brought by their progress in this field.
Kang Yang   +7 more
wiley   +1 more source

Titanium Oxysulfate‐Derived 1D Lepidocrocite Titanate Nanostructures

open access: yesAdvanced Materials Interfaces, EarlyView.
A novel synthesis protocol is presented for creating high‐quality titania nanofilaments. This method transcends the limitations of traditional techniques, leveraging a solution precipitation process fine‐tuned for lower temperatures and minimal reagent use. The result?
Sukanya Maity   +8 more
wiley   +1 more source

High‐Resolution and Surface‐Sensitive Tip‐Enhanced Raman Spectroscopy Characterization of Strained‐Silicon Devices through Cleanroom‐Compatible Plasmonic Probes

open access: yesAdvanced Materials Interfaces, EarlyView.
This paper demonstrates how Tip‐Enhanced Raman Spectroscopy (TERS) can detect diverse levels of strain in a SiGe‐Si structure in less than 20 nm of depth with lateral resolution under 100 nm. The measures are performed with a TiN‐coated probe, which secures a remarkable enhancement of the optical signal, while being chemically stable to allow TERS to ...
Chiara Mancini   +6 more
wiley   +1 more source

Borophene‐Based Ultrasensitive and Broadband Photodetectors

open access: yesAdvanced Materials Interfaces, EarlyView.
The direct growth of χ3‐phase borophene on n‐type silicon wafers leads to superior Schottky junctions, making them ideal for broad‐range, high‐sensitivity photodetectors. These photodetectors demonstrate higher sensitivity and faster response times compared to those fabricated by transferring 2D materials onto silicon to form van der Waals junctions ...
Yaser Abdi   +7 more
wiley   +1 more source

Evaluating the Local Bandgap Across inxGa1‐xas Multiple Quantum Wells in a Metamorphic Laser via Low‐Loss EELS

open access: yesAdvanced Materials Interfaces, EarlyView.
This research explores local bandgap, composition, and strain variations across InxGa₁−xAs quantum wells within a metamorphic laser structure using high‐resolution scanning transmission electron microscopy (STEM) and low‐loss electron energy loss spectroscopy (EELS). Results reveal significant inhomogeneities, particularly near interfaces, with bandgap
Nicholas Stephen   +10 more
wiley   +1 more source

Stirring the false vacuum via interacting quantized bubbles on a 5,564-qubit quantum annealer. [PDF]

open access: yesNat Phys
Vodeb J   +9 more
europepmc   +1 more source

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