Results 101 to 110 of about 5,518 (242)

Roll-to-roll growth of oversize hexagonal BN films and its applications in 2D optoelectronic devices [PDF]

, 2016
随着半导体材料和器件技术地迅速发展，实际应用中，对于短波长光电器件、高功率和高频率电子器件的开发和需求日益增加，逐步揭示了限制光电子器件发展的问题。首先，大规模生产的新型光电子器件对所需的二维材料有了更高的要求，强烈需要一个大尺寸（晶圆尺寸以上）的薄膜合成。其次，从光电子器件的基本结构角度来看，为了实现光电转换功能，电注入和pn结仍然是主流结构，也就是说从材料合成走向实际器件应用，p、n型导电层的制备通常都扮演着关键性的角色。最后，就是利用材料的各项特性，将其应用到各种研究领域。本文针对这三大方面问题 ...
伍臣平
core  

Scalable Wheat Bran‐Algae Composites for Edible Electronics with Spray‐Coated Food‐Grade Conductive Inks

Advanced Electronic Materials, EarlyView.
A fully edible wheat bran–algae substrate is fabricated through scalable mould‐compression and spray‐coating, enabling robust, food‐grade platforms for sustainable electronics. A chitosan barrier improves water resistance and ink compatibility, while activated‐carbon conductive films form uniform electrodes with Ohmic behaviour.
Jaz Johari, Muhua Zhu, Zhiging Wang, Yichen Lang, Georgios Nikiforidis, Mingqing Wang, Mengyan Nie, Shahab Akhavan   +7 more
wiley   +1 more source

Gradual mechanical deformation discernible devices based on flexible self-powered Ⅲ-nitride pin photoelectrochemical piezo-phototronics

Materials Today Advances
The piezoelectricity of Ⅲ-nitrides distinguishes themselves from traditional semiconductors and evoke two novel effects: the piezotronic and piezo-phototronic effect.
Junjun Xue, Xinya Tao, Xu Wang, Tongdao Pan, Zhouyu Chen, Guanyu Xu, Qing Cai, Pengfei Shao, Yushen Liu, Zengli Huang, Ting Zhi, Bin Liu, Dunjun Chen, Rong Zhang, Jin Wang   +14 more
doaj   +1 more source

Electrode‐Engineered Dual‐Mode Multifunctional Lead‐Free Perovskite Optoelectronic Memristors for Neuromorphic Computing

Advanced Electronic Materials, EarlyView.
A lead‐free perovskite memristive solar cell structure that call emulate both synaptic and neuronal functions controlled by light and electric fields depending on top electrode type. ABSTRACT Memristive devices based on halide perovskites hold strong promise to provide energy‐efficient systems for the Internet of Things (IoT); however, lead (Pb ...
Michalis Loizos, Konstantinos Rogdakis, Konstantinos Chatzimanolis, Katerina Anagnostou, Emmanuel Kymakis   +4 more
wiley   +1 more source

Hybrid Triboelectric-piezoelectric Energy Harvester Utilizing Nanopatterned Film and Piezoelectric Elastomeric Sponge Layers [PDF]

한국정밀공학회지
We demonstrate a practical and efficient hybrid triboelectric-piezoelectric energy harvesting structure that consists of a nanopatterned and/or metal-deposited polymer film and a piezoelectric elastomeric sponge. When a polymer (here, polycarbonate (PC))
Hyunmin Baek, Chaeeun Lee, Hocheol Jeong, Jong G. Ok   +3 more
doaj   +1 more source

Research Progress and Applications of Non‐Carrier‐Injection Electroluminescence

Advanced Electronic Materials, EarlyView.
Non‐carrier‐injection electroluminescence (NCI‐EL) uses AC fields and displacement currents to trigger light from internal charge reservoirs, enabling minimalist emitters with remotely coupled terminals. This review maps shared mechanisms across organics, GaN, quantum dots, and TMDCs, compares planar, interdigital, single‐terminal, and coaxial designs,
Wei Huang, Jianbi Le, Rong Chen, Zhixian Lin, Xiongtu Zhou, Yongai Zhang, Chaoxing Wu   +6 more
wiley   +1 more source

A multiscale-multiphysics strategy for numerical modeling of thin piezoelectric sheets

, 2014
Flexible piezoelectric devices made of polymeric materials are widely used for micro- and nano-electro-mechanical systems. In particular, numerous recent applications concern energy harvesting.
De Lorenzis, Laura, Maruccio, Claudio, Persano, Luana, Pisignano, Dario   +3 more
core  

Energy harvesting from electrospun piezoelectric nanowires for structural health monitoring of a cable-stayed bridge [PDF]

, 2015
Wireless monitoring could greatly impact the fields of structural health assessment and infrastructure asset management, but some technological challenges pose unsolved issues toward its reliable use in continuous large-scale applications.
De Lorenzis, L., Maruccio, C., Monti, G., Quaranta, G.   +3 more
core  

Acoustic Impedance‐Tailored High‐Performance Ultrasound‐Driven Triboelectric Nanogenerators

Advanced Energy Materials, EarlyView.
An acoustic impedance–mismatched triboelectric nanogenerator is presented for efficient ultrasound energy harvesting in implantable medical devices. Concave and convex membrane patterning induces controlled acoustic impedance mismatch, which boosts output by ∼200% and ensures stable operation over 100 million cycles and six weeks in vivo, highlighting ...
Young‐Jun Kim, Youngwook Chung, Joon‐Ha Hwang, Jang‐Mook Jeong, Bosung Kim, Donghyun Kang, Byung‐Ok Choi, Hong‐Joon Yoon, Sang‐Woo Kim   +8 more
wiley   +1 more source

Toward Environmentally Friendly Hydrogel‐Based Flexible Intelligent Sensor Systems

Advanced Intelligent Discovery, EarlyView.
This review summarizes environmentally and biologically friendly hydrogel‐based flexible sensor systems focusing on physical, chemical, and physiological sensors. Furthermore, device concepts moving forward for the practical application are discussed about wireless integration, the interface between hydrogel and dry electronics, automatic data analysis
Sudipta Kumar Sarkar, Kuniharu Takei
wiley   +1 more source