Characteristics of triboelectrification on dielectric surfaces contacted with a liquid metal in different gases

被引：8

作者：

Chen, Jian ^{[1
,2
,3
]}

Tang, Wei ^{[1
,2
]}

Lu, Cunxin ^{[1
,2
,3
]}

Xu, Liang ^{[1
,2
]}

Yang, Zhiwei ^{[1
,2
,3
]}

Chen, Baodong ^{[1
,2
]}

Jiang, Tao ^{[1
,2
]}

Wang, Zhong Lin ^{[1
,2
,4
]}

机构：

[1] Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing 100083, Peoples R China

[2] Natl Ctr Nanosci & Technol NCNST, CAS Ctr Excellence Nanosci, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

来源：

APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 20期

基金：

中国国家自然科学基金;

关键词：

WEARABLE ELECTRONICS; ENERGY; ELECTRIFICATION; NANOGENERATOR; PERFORMANCE; WATER; SENSORS; SYSTEMS;

D O I：

10.1063/1.4983353

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Triboelectric nanogenerators attract more and more research attention, for their high efficiency, low fabrication cost, and high flexibility. However, the mechanism about triboelectrification remains highly debated. In this work, we constructed a liquid-metal based triboelectric nanogenerator (LM-TENG) and investigated the influence of the gas atmosphere on the triboelectrification between the liquid metal and the dielectric materials, such as PTFE, Kapton, and Nylon. It was found that the dielectric materials were negatively charged on contact with the liquid metal in ambient air. But in the nitrogen conditions, the polarity of the charges was reversed. Oxygen was excluded, which is responsible for the polarity reversal in contact electrification. Based on X-ray photoelectron spectroscopy, energy-dispersive X-ray, and SKFM data, a possible mechanism was proposed. Published by AIP Publishing.

引用

页数：4

共 34 条

[1] What Really Drives Chemical Reactions on Contact Charged Surfaces? [J].