Results 171 to 180 of about 778,720 (285)

Molecularly Regulated Dynamic Interfaces in 3D/2D Perovskites Enabled by Functional Pyridinium Ionic Liquids

open access: yesSmall, EarlyView.
1‐butyl‐4‐methylpyridinium tetrafluoroborate (BMPyBF4) interacts with excess PbI2 during film formation, driving the formation of a low‐dimensional perovskite phase and enabling the self‐organization of a 3D/2D interfacial structure. This molecularly regulated interface suppresses defect‐mediated recombination and facilitates interfacial charge ...
Bulent Alkan   +9 more
wiley   +1 more source

Low‐Complexity Phase–Transition‐Based VO2 Transmissive Reconfigurable Intelligent Surface for Indoor Millimeter‐Wave Communications

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
We demonstrate a VO2‐based transmissive reconfigurable intelligent surface for indoor millimeter‐wave communication. The TRIS replaces conventional PIN and varactor diodes with geometrically tailored VO2 switches, enabling transmitted phase control through phase‐transition‐based switching.
Junghyeon Kim   +3 more
wiley   +1 more source

Comparison of inhomogeneous Schottky barrier modeling approaches in SiC polytypes. [PDF]

open access: yesPLoS One
Mekaret F   +10 more
europepmc   +1 more source

Modeling of Diamond Trench Metal Oxide Semiconductor Barrier Schottky Rectifier Based on Dynamic Reverse Bias Simulation Framework

open access: yesphysica status solidi (a), Volume 223, Issue 17, 9 September 2026.
Time‐resolved mixed‐mode technology computer aided design simulations reveal that the transient ionization response of deep boron acceptors fundamentally modifies the charge‐sharing mechanism in diamond TMBS rectifiers. Consequently, the optimum trench geometry under dynamic reverse‐bias conditions differs significantly from conventional quasi‐static ...
Martin Kah   +8 more
wiley   +1 more source

Imaging the Thickness‐Dependent Formation of Schottky Barriers in Metal–Semiconductor van der Waals Heterostructures

open access: yesAdvanced Functional Materials, Volume 36, Issue 74, 14 September 2026.
Using nanobeam photoemission, we demonstrate imaging of the in‐plane and out‐of‐plane electric field landscape within a metal–semiconductor van der Waals heterostructure. We provide evidence for Schottky barrier formation that depends on the semiconductor thickness. ABSTRACT Achieving high‐performance optoelectronic devices based on two‐dimensional van
Dario Mastrippolito   +17 more
wiley   +1 more source

Chemical Control of Space Charge Barriers and Grain Boundary Resistances in Polycrystalline Ionic Conductors

open access: yesAdvanced Functional Materials, Volume 36, Issue 74, 14 September 2026.
Grain boundaries (GBs) in polycrystalline materials often block charge transport and drive degradation. Using Gd‐doped CeO2 as a model electrolyte used in fuel/electrolysis cells, we developed a core‐shell infiltration method to selectively modify GB chemistry and space charge potential, achieving orders‐of‐magnitude ionic conductivity changes.
Z. Sha   +5 more
wiley   +1 more source

Multi‐Level Saturation Current Encoding in Two‐Dimensional Ferroelectric Source‐Gated Transistors

open access: yesAdvanced Functional Materials, Volume 36, Issue 76, 21 September 2026.
A 2D ferroelectric source‐gated transistor (SGT) operates with a non‐volatile, multi‐level saturation current controlled by ferroelectric polarization. Operando electrostatic and photocurrent imaging link the current limitation to source‐side depletion, identifying saturation current as a programmable, read‐bias‐tolerant device parameter toward low ...
Joon‐Seok Kim   +3 more
wiley   +1 more source

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