Results 131 to 140 of about 1,376,697 (345)

Efficiency Droop and Effective Active Volume in GaN-Based Light-Emitting Diodes Grown on Sapphire and Silicon Substrates

open access: yesApplied Sciences, 2019
We compared the efficiency droop of InGaN multiple-quantum-well (MQW) blue light-emitting diode (LED) structures grown on silicon(111) and c-plane sapphire substrates and analyzed the efficiency droop characteristics using the rate equation model with ...
Han-Youl Ryu   +2 more
doaj   +1 more source

Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors

open access: yesAdvanced Functional Materials, EarlyView.
This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu   +3 more
wiley   +1 more source

Enhancing facial recognition accuracy through multi-scale feature fusion and spatial attention mechanisms

open access: yesElectronic Research Archive
Nowadays, advancements in facial recognition technology necessitate robust solutions to address challenges in real-world scenarios, including lighting variations and facial position discrepancies.
Muhammad Ahmad Nawaz Ul Ghani   +3 more
doaj   +1 more source

Formation of 2D Electron Gas at a Non‐Polar Perovskite Oxide Interface: SrHfO3/BaSnO3

open access: yesAdvanced Functional Materials, EarlyView.
Through experiments and Poisson‐Schrödinger simulations, 2D electron gas formed at the non‐polar SrHfO3/BaSnO3 interface is observed. A large conduction band offset enables modulation doping by the intrinsic deep donors in SrHfO3, resulting in carrier confinement in BaSnO3 without relying on interfacial polarization or termination‐layer engineering ...
Jongkyoung Ko   +5 more
wiley   +1 more source

High‐Performance Field‐Effect Transistors and Phototransistors Array Based on Solution‐Processed Quasi‐1D Van der Waals Ta2Pd3S8 Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Herein, the synthesis of Ta₂Pd₃S₈ nanowires is reported via scalable liquid cascade exfoliation and their integration into high‐mobility field‐effect transistors (FETs) and sensitive photodetectors, achieving carrier mobility of up to 27.3 cm2 V⁻¹ s⁻¹ and responsivities of 322.40 A W⁻¹ and 1.85 mA W⁻¹ for single nanowire and network devices ...
Kyung Hwan Choi   +13 more
wiley   +1 more source

خواص الکترونی، فونونی و مکانیکی GaN [PDF]

open access: yesپژوهش سیستم‌های بس‌ذره‌ای, 2014
در این مقاله خواص الکترونی، فونونی و مکانیکی بلور GaN در حالت انبوهه، برای دو فاز مکعبی بلندروی و شش گوشی ورتسایت با استفاده از نظریه‌ی تابعی چگالی، تقریب شیب تعمیم یافته و استفاده از شبه‌پتانسیل مورد بررسی قرار گرفته است.
عاطفه نجاتی   +2 more
doaj  

UAV-Based Structural Damage Mapping: A Review

open access: yesISPRS International Journal of Geo-Information, 2019
Structural disaster damage detection and characterization is one of the oldest remote sensing challenges, and the utility of virtually every type of active and passive sensor deployed on various air- and spaceborne platforms has been assessed.
Norman Kerle   +4 more
doaj   +1 more source

Dist-GAN: An Improved GAN Using Distance Constraints [PDF]

open access: yes, 2018
Published as a conference paper at ECCV ...
Ngoc-Trung Tran   +2 more
openaire   +3 more sources

Artificial Intelligence‐Driven Development in Rechargeable Battery Materials: Progress, Challenges, and Future Perspectives

open access: yesAdvanced Functional Materials, EarlyView.
AI is transforming the research paradigm of battery materials and reshaping the entire landscape of battery technology. This comprehensive review summarizes the cutting‐edge applications of AI in the advancement of battery materials, underscores the critical challenges faced in harnessing the full potential of AI, and proposes strategic guidance for ...
Qingyun Hu   +5 more
wiley   +1 more source

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