Results 141 to 150 of about 3,573 (286)

Electrical Response of Different Crystalline Microregions in Poly(vinylidene fluoride)

Nanomaterials
The crystal structure has a great influence on the dielectric and piezoelectric performance of poly(vinylidene fluoride) (PVDF). In this work, we prepared PVDF films with two typical crystalline phases (α and β).
Mengyue Su, Jun Zhou, Yuqing Chen, Yilong Wang, Gan Jin, Haiyang Wang, Jiacheng Zhou, Xiaoyue Pang, Zepeng Lv, Kai Wu   +9 more
doaj   +1 more source

Imaging Electric Polarization Switching in Multilayer Graphene

Advanced Science, EarlyView.
Domain wall sliding‐induced electric polarization switching is directly observed for the first time in multilayer graphene, enabled by a novel optical readout method. The polarization switching is realized upon application of global and local electric fields, and mechanical forces between neighboring polar domains of opposite out‐of‐plane polarizations
Zhou Zhou, Xiyao Peng, Jianfeng Bi, Jing He, Fei Xue, Jie Jiang, Huizhen Wu, Zhiwen Shi, Haoliang Qian, Toshikaze Kariyado, Sihan Zhao   +10 more
wiley   +1 more source

Band excitation Kelvin probe force microscopy utilizing photothermal excitation

, 2015
A multifrequency open loop Kelvin probe force microscopy (KPFM) approach utilizingphotothermal as opposed to electrical excitation is developed.
Balke, Nina, Jesse, S., Rodriguez, Brian J., Collins, Liam, et al.   +4 more
core   +1 more source

An Energy Autonomous Microneedle Array‐Based Sensing System for Continuous Biomarker Monitoring

Advanced Science, EarlyView.
This work presents an innovative self‐powered wearable biosensor system for real‐time monitoring of multiple biomarkers in interstitial fluid. The device integrates stainless steel‐based minimally invasive microneedles with ion‐selective membranes, enabling simultaneous Na+, K+, Ca2+, pH, and glucose detection.
Arnab Pal, Kai‐Po Fan, Sheng‐Chun Hung, Jaba Roy Chowdhury, Jun‐Hsun Chung, Meenakshi Ray, Hsiang‐Yun Hsu, Fu‐Cheng Kao, Kuei‐Lin Liu, Zong‐Hong Lin   +9 more
wiley   +1 more source

Tailored D‐π Conjugation Boosts Piezocatalytic CO2 Reduction in a Platinum(II)‐Acetylide Framework

Advanced Science, EarlyView.
The highly conjugated metalII‐acetylide framework demonstrates efficient ultrasound‐driven conversion of CO2 to CO. The piezoelectric field generated by ultrasound facilitates electron transfer from the tetraphenylene π‐column to the MII‐bis(acetylide) moiety, enabling CO2 activation. Compared to PdII‐ and NiII‐based analogues, the stronger d–π orbital
Mude Zhu, Yingtang Zhou, Kai Wang, Xiaoyun Fan, Yang Ding, Wai‐Yeung Wong, Linli Xu   +6 more
wiley   +1 more source

Atomic-scale insights into electronic structure of lattice-work structures on rutile TiO2(001) surface

Applied Surface Science Advances
The lattice-work structure (LWS), a {114}-faceted surface reconstruction on rutile TiO₂(001), has been recognized for its potential in visible-light-driven photocatalysis.
Eiichi Inami, Seiga Koga, Linfeng Hou, Fengxuan Li, Daiki Katsube, Masayuki Abe   +5 more
doaj   +1 more source

In Situ Pseudo‐Halide Diffusion Enables Buried Interface Regulation and Crystallinity Enhancement in Perovskite Solar Cells

Advanced Science, EarlyView.
Thermally activated LiHCOO induces in situ pseudo‐halide diffusion, promoting buried interface strain release and perovskite crystallization. The monoclinic LiHCOO phase forms an open framework structure that enhances HCOO− diffusion and drives interfacial restructuring.
Chao Gao, Li He, Changjiang Li, Long Fang, Wenzhong Shen   +4 more
wiley   +1 more source

Scanning probe investigation of anatase Tio2 films using AFM, pc-AFM, and KPFM

, 2020
Titanium dioxide (TiO2) is a semiconductor metal oxide that is extensively studied due to its unique properties and applications. Anatase TiO2 thin films have been employed as photocatalysts to degrade organic pollutants in water and as electron ...
Estely Carranza
core  

Photoelectric‐Coupled Ferroelectric Heterojunctions for Ultrahigh NO2 Sensing With Polarization‐Memory‐Assisted Interfacial Modulation

Advanced Science, EarlyView.
This study demonstrates a Bi2WO6/SrBi2Ta2O9 heterojunction where light‐driven ferroelectric polarization reversal couples with persistent photoconductivity, enabling exclusive NO2 selective room‐temperature sensing. The device achieves a two‐order‐of‐magnitude sensitivity enhancement over an unpolarized device, a sub‐ppb detection limit, and robust ...
Liping Tan, Xuefeng Hu, Ming Zhou, Weiwei Qing, Along Li, Zilong Wang, Mudan Feng, Shuang Zhao, Xiaoliang Wang, Peipei Li, Yali Bi, Wei Zhang   +11 more
wiley   +1 more source

Development of a near-field technique for local potential measurement by AFM/KPFM

Cette thèse explore les techniques de caractérisation utilisées pour les transistors organiques à couche mince (OTFT), en mettant l'accent sur la technique de microscopie de force à sonde Kelvin (KPFM) à décalage de phase et sur la nouvelle technique de ...
Mittapalli, Rakesh
core