Results 221 to 230 of about 1,033,736 (302)

Process Integration of U‐Shape Ambipolar Schottky–Barrier Field‐Effect Transistors

open access: yesAdvanced Electronic Materials, EarlyView.
We demonstrate a U‐shape ambipolar Schottky barrier field‐effect transistor fabricated on silicon‐on‐insulator substrate. The geometry naturally enables gate‐all‐around operation and long channel lengths within a compact footprint, while simplifying self‐aligned contact formation compared to conventional 3D architectures. The current device is realized
Cigdem Cakirlar   +9 more
wiley   +1 more source

High‐Performance Monolayer 1T‐GeO2 Transistors with Low‐Resistance Metal Contacts

open access: yesAdvanced Electronic Materials, EarlyView.
First‐principles quantum transport simulations reveal that monolayer 1T‐GeO2 forms ideal Ohmic contacts with conventional metals due to suppressed Fermi‐level pinning. The devices exhibit high on‐state currents of 1151–3237 nA nm−1 and ultralow contact resistance of 35.33–54.03 Ω·µm, outperforming state‐of‐the‐art 2D and oxide semiconductors in ...
Shuai Lang   +6 more
wiley   +1 more source

All‐Optical Logic Gates and Programmable Photonic Organo‐Polymer Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Four PDMS‐based photonic devices imitating the shapes of Y‐structure, hexagonal mesh, dual in‐phase quadrature, and cascaded MZI array are demonstrated and shown to function as all‐optical OR gates. Furthermore, a PDMS hexagonal mesh, containing dye‐doped regions, is shown to enable performance as a programmable photonic device, where its ...
Coral Raz   +2 more
wiley   +1 more source

Influence of Anode Reactivity and Chemical Crossover on the Formation of Cathode‐Electrolyte Interphase in High‐Nickel Layered Oxide Cathodes

open access: yesAdvanced Energy Materials, EarlyView.
Full cells pairing NMC811 cathodes with graphite, prelithiated SiOx, and Li‐metal anodes are cycled at 45 °C to investigate how anode reactivity influences the cathode surface composition. Electrochemical and surface characterization techniques reveal that anodes with unstable solid‐electrolyte interphases increase cathode degradation through cathode ...
Karla Aranda, Arumugam Manthiram
wiley   +1 more source

Impact of Trap Depth on the Steady‐State and Transient Photoluminescence in Halide Perovskite Films

open access: yesAdvanced Energy Materials, EarlyView.
The presence of shallow traps in halide perovskites is frequently postulated by density functional theory calculations. This review studies the implications of recombination‐active shallow traps on steady‐state and transient recombination kinetics. How to identify shallow traps and how the depth of the traps and their density are reflected in different
Jürgen Hüpkes   +2 more
wiley   +1 more source

Process Parameter Specification and Control in Solution Processing of Hybrid Perovskite Photovoltaics: From Domain‐Specific Jargon to Evidence‐Based, Unambiguous Description of Experimental Workflows

open access: yesAdvanced Energy Materials, EarlyView.
Hybrid perovskite solar cells are nearing commercial mass production. Therefore, academic research must tackle the remaining barriers for their large‐scale rollout. One of these is consistent manufacturing yield. Here, evidence is reviewed for the impact of process paramters on perovskite solution processes, finding a great potential for better ...
Simon Ternes   +11 more
wiley   +1 more source

Improving the Rate and Cycle Performances of Porous Silicon Particles Prepared by Acid Etching of Al–Si Alloy Powders for Application in Lithium‐Ion Batteries

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
A scalable method is presented to manufacture high‐capacity Si electrodes for Li‐ion batteries where skeletal porous Ti(Al,Si)2@Si particles are synthesized by gas atomization and acid etching. The fine pores have a buffering effect that suppresses volume expansion during lithiation, and the high electrical conductivity of the particles greatly ...
Hiroyuki Kawaura   +3 more
wiley   +1 more source

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