摩擦电效应
材料科学
工作职能
纳米发生器
石墨烯
纳米技术
能量收集
机械能
兴奋剂
电压
工作(物理)
光电子学
能量(信号处理)
电气工程
复合材料
机械工程
功率(物理)
压电
图层(电子)
量子力学
数学
工程类
物理
统计
作者
Jian Zhou,Jianing Zhang,Yuanpeng Deng,Han Zhao,Pengyu Zhang,Shubin Fu,Xiang Xu,Hui Li
出处
期刊:Nano Energy
[Elsevier BV]
日期:2022-05-30
卷期号:99: 107411-107411
被引量:20
标识
DOI:10.1016/j.nanoen.2022.107411
摘要
Triboelectric nanogenerators (TENGs) demonstrate an attractive pathway to directly convert broadband mechanical energy into electrical energy for a green and clean energy source. Triboelectric material design with tailored work function has played a critical role in enhancing the output performance of TENGs. However, regulating the work function of triboelectric materials still remains challenging due to the limited particle/group/ion doping rate. Here, we reported a simple defect-mediated strategy (DMS) to regulate the work function of graphene film (positive triboelectric material) by different contents of oxygen and carbon defects derived at annealing temperatures from 500 ºC to 3000 ºC. Our DMS features a continuous and wide-range tunable work function from 4.68 eV to 4.49 eV and the as-assembled TENGs produce output voltages and currents up to 190 V and 14 μA, respectively. The efficient work function regulation of this type establishes a set of fundamental considerations in triboelectric material design, especially the two-dimensional materials, to enhance the energy harvesting and sensing performances of TENGs.
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