Results 81 to 90 of about 46,004 (317)

Bandgap‐Engineered AlGaAs/GaAs Heterostructures for Wavelength‐Selective Dual‐Polarity Photoelectrochemistry

Advanced Functional Materials, EarlyView.
Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao, Lipin Chen, Jules Courtin, Siyu Lin, Gangri Cai, Yan Zhu, Yoan Léger, Nicolas Bertru, Jinshi Zhao, Charles Cornet   +9 more
wiley   +1 more source

Heterostructure engineering for wurtzite LaN

The Journal of Chemical Physics
Wurtzite LaN (wz-LaN) is a semiconducting nitride with favorable piezoelectric and ferroelectric properties, making it promising for applications in electronics. We use first-principles density functional theory with a hybrid functional to investigate several features that are key for its use in heterostructures.
A. J. E. Rowberg, S. Mu, C. G. Van de Walle   +2 more
openaire   +3 more sources

Heterostructure intervalley transferred electron effects

, 2001
A Gunn active layer is used as an X electron probe to detect the X tunnelling current in the GaAs-AlAs heterostructure, from which a new heterostructure intervalley transferred electron (HITE) device is obtained.
Xue FS, Xue FS,Nanjing Elect Devices Inst,Nanjing 210016,Peoples R China.   +1 more
core  

Heterostructure

, 2019
Graphene-Bi2Te3, a graphene-based compound with a metal/metalloid heterostructure, is recently discovered to be a potentially novel thermoelectric material, demonstrating unprecedently enhanced thermoelectric efficiencies.
Lee, Woorim, Lee, Woomin, Pyun, Kyung Rok, Seung Hwan Ko, Gyumin Lim, Woorim Lee, Kihm, Kenneth David, Kim, Hong Goo, Ko, Seung Hwan, Cheon, Sosan, Han, Mi-Kyung, Woomin Lee, Sosan Cheon, Sung‐Jin Kim, Lim, Gyumin, Hong Goo Kim, Mi‐Kyung Han, Kenneth David Kihm, Kim, Sung-Jin, Kyung Rok Pyun   +19 more
core   +1 more source

Support‐Controlled Reaction Pathways via Dynamic Sulfur‐Mediated Interfaces for Selective Urea Electrolysis

Advanced Functional Materials, EarlyView.
Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler, Lucía Vizcaíno‐Anaya, Ahmad Tayyebi, José Manuel Vila‐Fungueiriño, María del Carmen Giménez‐López   +4 more
wiley   +1 more source

Sustainable Electrochemical Synthesis of High‐Quality MXenes: Mechanistic Insights, Applications, Challenges, and Technological Prospects

Advanced Functional Materials, EarlyView.
Electrochemical etching provides an eco‐friendly alternative to hazardous HF methods for MXene production. This approach facilitates the selective isolation of the A‐layer from MAX phases with tunable surface terminations. Controlling voltage, electrolytes, temperature, and duration enables the optimal structural integrity. Nevertheless, existing scale
Jagdeep Singh, Madhusudhana M Devadiga, Santosh K. Tiwari, AS Dhaliwal, Gurpreet Singh Selopal   +4 more
wiley   +1 more source

Unveiling Charge Transfer and Recombination Dynamics in 3D/2D Heterostructure via Ultrafast Spectroscopy for Efficient Perovskite Solar Cells

Advanced Science
Charge transfer properties between 3D and 2D perovskite layers play a key role in determining the performance of 3D/2D heterostructure perovskite solar cells (PSCs).
Di Li, Junhan Xie, Shaobing Xiong, Xiaoxiao Zang, Zhennan Lin, Yuning Wu, Weimin Liu, Bo Li, Zhenrong Sun, Junhao Chu, Qinye Bao   +10 more
doaj   +1 more source

DC and Pulsed Characterization of GaN-based Single- and Double- Heterostructure Devices

, 2011
In this paper we report the DC and pulsed characterization of devices fabricated from 5 different GaN-based single-(SH) and double-heterostructure(DH) epitaxial designs(Fig. 1).
ZANONI, ENRICO, SOCI, FABIO, Wuerfl, J., Zanoni, E., CHINI, Alessandro, F. Soci, Ivo, P., RAMPAZZO, FABIANA, MENEGHESSO, GAUDENZIO, A. Chini, Bisi, D., STOCCO, ANTONIO, Rampazzo, F., Meneghesso, G., BISI, DAVIDE, J. Wuerfl, ZANANDREA, ALBERTO, P. Ivo, Zanandrea, A., Stocco, A.   +19 more
core  

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Effects of photogenerated-hole diffusion on 3C-SiC/Si heterostructure optoelectronic position-sensitive detector

, 2021
Single-crystalline silicon carbide (3C-SiC) has been attracting significant attention in recent years due to its cost-effectiveness and high crystalline quality, mature fabrication techniques on Si-substrate and outstanding mechanical, chemical, and ...
Nguyen, Nam-Trung, Riduan Md Foisal, Abu, Foisal, Abu Riduan Md, Dao, Dzung Viet, Dinh, Toan, Viet Dao, Dzung, Nguyen, Hung, Nguyen, Thanh, Streed, Erik W   +8 more
core   +1 more source