Results 41 to 50 of about 2,092,774 (331)

Characterization of the in-situ degradation process of P3HT:PCBM based on hyperspectral and neural networks

Polymer Testing
In situ online observation of surface morphology during degradation processes is of paramount importance for exploring the stability of organic photovoltaic materials.
Yang Wang, Zhao Ding, Junli Li, Ting Yang, Jianfeng Chen, Lifeng Bian, Chen Yang   +6 more
doaj   +1 more source

The magnetic, optical and electronic properties of Mn–X(X = O, Se, Te, Po) co-doped MoS2 monolayers via first principle calculation

Materials Research Express, 2020
The magnetic and optical properties studies in monolayer transition-metal dichalcogenides have attracted attention because of the manufacture spintronic, electronic and photonic devices.
Qi-Zhi Lang, Yan-Bin Huang, Jie-Min Wei, Yi Wang, Xiang Guo, Zi-Jiang Luo, Zhao Ding   +6 more
doaj   +1 more source

In-situ-SiN/AlN/Al_0.05Ga_0.95N High Electron-Mobility Transistors on Si-Substrate Using Al₂O₃/SiO₂ Passivation

IEEE Journal of the Electron Devices Society, 2021
In this study, in-situ MOCVD-grown SiN/AlN/Al0.05Ga0.95N HEMTs were fabricated using ALD-Al2O3/PECVD-SiO2 passivation. A high on/off current ratio of 109 and a low subthreshold swing of 64 mV/dec are achieved. The interface traps in the SiN/AlN/Al0.05Ga0.
Weihang Zhang, Liyu Fu, Xi Liu, Jincheng Zhang, Shenglei Zhao, Zhizhe Wang, Yue Hao   +6 more
doaj   +1 more source

Beyond Order: Perspectives on Leveraging Machine Learning for Disordered Materials

Advanced Engineering Materials, EarlyView.
This article explores how machine learning (ML) revolutionizes the study and design of disordered materials by uncovering hidden patterns, predicting properties, and optimizing multiscale structures. It highlights key advancements, including generative models, graph neural networks, and hybrid ML‐physics methods, addressing challenges like data ...
Hamidreza Yazdani Sarvestani, Surabhi Nadigotti, Erfan Fatehi, Derek Aranguren van Egmond, Behnam Ashrafi   +4 more
wiley   +1 more source

Cryogenic Hyperdimensional In-Memory Computing Using Ferroelectric TCAM

IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Cryogenic operations of electronics present a significant step forward to achieve huge demand of in-memory computing (IMC) for high-performance computing, quantum computing, and military applications.
Shivendra Singh Parihar, Shubham Kumar, Swetaki Chatterjee, Girish Pahwa, Yogesh Singh Chauhan, Hussam Amrouch   +5 more
doaj   +1 more source

Direct Electron Detection Electron Energy‐Loss Spectroscopy: Speeding Up 2D Analytical In Situ Transmission Electron Microscopy for Aluminum Alloys

Advanced Engineering Materials, EarlyView.
Scanning transmission electron microscopy imaging techniques are an essential tool to document dynamic developments, such as precipitation in aluminum alloys, during in situ heating experiments using transmission electron microscopy. However, in many cases, chemical information is required to interpret complex nanoscale processes.
Evelin Fisslthaler, Martina Dienstleder, Judith Lammer, Moritz Theissing, Daniel Knez   +4 more
wiley   +1 more source

Improved DC and RF Characteristics of GaN HEMT Using a Back-Barrier and Locally Doped Barrier Layer

Micromachines
To enhance the DC and RF performance of AlGaN/GaN HEMTs, a novel device structure was proposed and investigated through simulation. The key innovation of this new structure lies in the incorporation of an Al0.7In0.15Ga0.15N back-barrier layer and an N ...
Shuxiang Sun, Lulu Liu, Gangchuan Qu, Xintong Xie, J. Ajayan   +4 more
doaj   +1 more source

Unbalanced currents effect on the thermal characteristic and reliability of parallel connected power switches

Case Studies in Thermal Engineering, 2021
In many industrial applications, parallel connection of power semiconductor switches is widely used to achieve higher power levels and fault-tolerant operation.
Tohid Rahimi, Lei Ding, Armin Abadifard, Pedram Ghavidel, Masoud Farhadi, Rasoul Faraji   +5 more
doaj   +1 more source

Encapsulating Laser‐Induced Graphene to Preserve its Electrical Properties and Enhance its Mechanical Robustness

Advanced Engineering Materials, EarlyView.
It is demonstrated that laser‐induced graphene (LIG) can be encapsulated while preserving its electrical conductivity and enhancing its mechanical properties. Unlike previous encapsulation attempts, the optimal conditions described here result in sheet resistance of ≈2 Ω sq−1, resistance increase of only 5% upon encapsulation, and vastly improved ...
Fatemeh Bayat, Mohammad Nazeri, Gerd Grau, Simone Pisana   +3 more
wiley   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source