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Robust Flexible Textile Tribovoltaic Nanogenerator via a 2D 2H-MoS_2/Ta_4C_3 Dynamic Heterojunction

机译:Robust Flexible Textile Tribovoltaic Nanogenerator via a 2D 2H-MoS_2/Ta_4C_3 Dynamic Heterojunction

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摘要

The tribovoltaic effect can convert semiconductor interfacial frictionalmechanical energy into direct current (DC) electricity, but the flexibility anddurability of semiconductor materials limit its application in wearableelectronic. Herein, a robust flexible textile tribovoltaic nanogenerator ispresented based on a 2D dynamic heterojunction of 2H-MoS_2/Ta_4C_3 (MTNG).During the friction process, a built-in electric field (E_b) and an additionalinterfacial electric field (ECE) are generated in a continuous dynamic contact of2H-MoS_2/Ta_4C_3, and through the 2H-MoS_2/Ta_4C_3 dynamic heterojunction, asignificant number of electron-hole pairs are excited and move directionally togenerate a DC. The influences of mechanical pressure and sliding speed onoutput performance of MTNGs are systematically investigated. The MTNGsdeliver excellent output power density (39.15 mW m~2) and outstandingrobustness (43 000 cycles). Ten MTNGs can be connected in series to obtain aDC voltage of 3.3 V and in parallel to obtain a DC current of 75 μA.Furthermore, the MTNGs can effectively power a variety of commercialelectronic watches and calculators by harvesting human kinetic energy. A 2Ddynamic heterojunction 2H-MoS_2/Ta_4C_3 DC nanogenerator is described andoffers a workable option for the creation of flexible DC power sources andself-powered wearable electronics.

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  • 来源
    《Advanced functional materials》 |2023年第33期|2301821.1-2301821.11|共11页
  • 作者单位

    CAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400, China,Center onNanoenergy ResearchSchool of Physical Science and TechnologyGuangxi UniversityNanning 530004, China;

    CAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400, China,Center onNanoenergy ResearchSchool of Physical Science and TechnologyGuangxi UniversityNanning 530004, China,School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing 100049, China;

    CAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400, China,School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing 100049, ChinaCAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400, ChinaCAS Center for Excellence in NanoscienceBeijing Key Laboratory of Micro-nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400, China,School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing 100049, China,Center onNanoenergy ResearchSchool of Physical Science and TechnologyGuangxi UniversityNanning 530004, China;

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  • 原文格式 PDF
  • 正文语种 英语
  • 中图分类 无线电电子学、电信技术;工程材料学;
  • 关键词

    2D dynamic heterojunctions; mechanical energy harvesting; textile nanogenerators; tribovoltaic nanogenerators; wearable electronics;

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