Results 241 to 250 of about 2,130,934 (299)

Contact electrification using force microscopy

Physical Review Letters, 1989
One of the oldest unresolved problems in physics is the mechanism of charge exchange between contacting surfaces when at least one of them is insulating. We describe a new technique, using force microscopy, for studying this problem with greater lateral resolution than has been previously possible. The force microscope is shown to have 0.2 \ensuremath{\
, Terris, , Stern, , Rugar, , Mamin
openaire   +2 more sources

Contact Electrification Induced Multicolor Self‐Recoverable Mechanoluminescent Elastomer for Wearable Smart Light‐Emitting Devices

Advanced Optical Materials, 2023
Wearable smart light‐emitting devices whose luminescence can respond to human motions have attracted extensive attention. However, the present electroluminescence‐based devices always require power supply and electronic sensors, which makes them ...
Jia Wang, Kaiwen Yao, Ketian Cui, Jiachi Zhang, Yan Gu, Wenxiang Wang, Xianfeng Jin, Jinyu Zhou   +7 more
semanticscholar   +1 more source

Contact Electrification at Adhesive Interface: Boosting Charge Transfer for High‐Performance Triboelectric Nanogenerators

Advanced Functional Materials, 2023
Charge transfer, a decisive feature for surface charge density in triboelectric nanogenerators (TENGs), differs in quantity and species at different contact interfaces.
Kunming Shi, B. Chai, Haiyang Zou, Zhen Wen, Meng He, Jie Chen, P. Jiang, Xingyi Huang   +7 more
semanticscholar   +1 more source

Contact electrification of C60

Zeitschrift für Physik D Atoms, Molecules and Clusters, 1993
We have used gold-, tungsten-, and copper plates to contact repeatedly a C60 powder sample. We observed the flow of electrons to the sample leading to negative charge accumulation. In repeated-contact experiments, we find charge saturation after 15 contacts for gold and copper contact partners. This is typical for the behavior of a semiconductor.
B. A. Kwetkus, K. Sattler
openaire   +1 more source

Regulating Contact Electrification and Charge Retention Capability With Metal–Organic Frameworks in Triboelectric Nanogenerator for Self‐Powered Sewage Treatment

Advanced Functional Materials
The harvesting of ocean wind energy for triboelectric nanogenerators (TENGs) is greatly influenced by the contact electrification (CE) capability, charge retention characteristics, and harsh marine environment.
Xiao Sun, Liting Dong, Jianhua Liu, Tianyuan Hou, Yanan Li, Lei Wang, Xuechen Xu, Shougang Chen   +7 more
semanticscholar   +1 more source

Contact electrification of polymers

Journal of Physics D: Applied Physics, 1976
Measurements of the charge produced by rolling or sliding contact between a metal or polymer sphere and a dielectric sheet have been carried out under controlled conditions. The dependence of charge on air pressure was studied. Charge decay and mobilities were estimated. The metal work-function had no effect on charge transfer.
R Elsdon, F R G Mitchell
openaire   +1 more source

Spontaneous Wetting Induced by Contact‐Electrification at Liquid–Solid Interface

Advances in Materials
Wettability significantly influences various surface interactions and applications at the liquid–solid interface. However, the understanding is complicated by the intricate charge exchange occurring through contact electrification (CE) during this ...
Zhengfeng Tang, Dan Yang, Hengyu Guo, Shiquan Lin, Z. Wang   +4 more
semanticscholar   +1 more source

Tribochemically Controlled Atom Transfer Radical Polymerization Enabled by Contact Electrification.

Angewandte Chemie, 2023
Traditional mechanochemically controlled reversible-deactivation radical polymerization (RDRP) utilizes ultrasound or ball milling to regenerate activators, which induce the side reactions because of the high-energy and high-frequency stimuli.
Chen Wang, Ruoqing Zhao, Wenru Fan, Lei Li, Haoyang Feng, Zexuan Li, Ci Yan, Xiaoyang Shao, K. Matyjaszewski, Zhenhua Wang   +9 more
semanticscholar   +1 more source

A comprehensive review on the mechanism of contact electrification

Journal of Materials Chemistry A
This review summarizes the mechanisms, regulations, influencing factors, and application prospects of contact electrification at different interfaces.
Jia Tian, Yue He, Fangpei Li, Wenbo Peng, Yongning He   +4 more
semanticscholar   +1 more source

Contact electrification of polyamides

Journal of Electrostatics, 1991
Abstract Charge transfer to nylon 6.6 and other polyamides is a characteristic of the material, and to a large extent independent of source and fabrication history. A variety of polyamides with a range of amide group concentrations all charge strongly positive to much the same extent, but polyolefins (equivalent to polyamides with zero concentration ...
G.W. Follows, J. Lowell, M.P.W. Wilson
openaire   +1 more source