Simultaneously Enhancing Direct-Current Density and Lifetime of Tribovotaic Nanogenerator via Interface Lubrication

Wenyan Qiao; Zhihao Zhao; Linglin ZhouDi LiuShaoxin LiPeiyuan YangXinyuan LiJiaqi LiuJie WangZhong Lin Wang

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Simultaneously Enhancing Direct-Current Density and Lifetime of Tribovotaic Nanogenerator via Interface Lubrication

机译：Simultaneously Enhancing Direct-Current Density and Lifetime of Tribovotaic Nanogenerator via Interface Lubrication

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Tribovoltaic nanogenerators (TVNGs) present great properties such as highdirect-current density and continuous output performance, which has greatpotential to solve the power supply problem for miniaturized electronicdevices. However, the severe wear problem of TVNG causes rapid attenuationof current density, which is difficult to realize long-term operation with highoutput. In this work, an effective strategy via interface lubrication is proposedto enhance the direct-current density and lifetime of TVNGs simultaneously.The water-based graphene oxide solution is utilized as a lubricant, which canincrease the sliding surface carriers to enhance current density, and reducethe wear between the copper and the silicon wafer surface due to its excellentlubrication performance. Hence, the TVNG can generate peak current densityoutput ≈775 mA m~（?2）, accompanied with 31 mC m~（?2） transfer charges density.The TVNG via interface lubrication can maintain high current output after30 000 cycles. In addition, it can combine with triboelectric nanogeneratorto constitute a dual-type signal sensor, which can be used to monitor bridgevibration and goods’ weight. This study provides an effective method to solvethe wear problem of TVNG and improve direct-current density simultaneously,which will accelerate the practical application of TVNGs in the future.

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来源
《Advanced functional materials》 |2022年第46期|2208544.1-2208544.10|共10页
作者
Wenyan Qiao; Zhihao Zhao; Linglin ZhouDi LiuShaoxin LiPeiyuan YangXinyuan LiJiaqi LiuJie WangZhong Lin Wang;
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作者单位

Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083, P. R. China;

School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing 100049, P. R. China;

Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083, P. R. China;

Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083, P. R. China;

School of Nanoscience and TechnologyUniversity of Chinese Academy of SciencesBeijing 100049, P. R. China;

School of Materials Science and EngineeringGeorg;

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正文语种英语
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high direct-current; interface lubrications; self-powered sensors; tribovoltaic nanogenerators;

Simultaneously Enhancing Direct-Current Density and Lifetime of Tribovotaic Nanogenerator via Interface Lubrication

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