{"title":"Hierarchical metal/carbon nanotube-polymer composite films for amphibious photothermal actuators and power generation","authors":"Qiaohang Guo , Changsheng Wu , Peidi Zhou , Shiwen Dou , Kaihuai Yang , Huamin Chen , Zi Chen , Mingcen Weng","doi":"10.1016/j.sna.2025.116301","DOIUrl":null,"url":null,"abstract":"<div><div>In recent years, multi-functional actuators have caused concern owing to extensive possible applications in biomimetic and intelligent systems. Nonetheless, traditional light-driven actuators with bilayer heterostructure are mostly unsuitable for wading environments. Also, the heat generated can not be effectively utilized. Hence, there is an urgent demand for the progress of light-powered photothermal actuators which can not only be used in amphibious environments, but also utilize photothermal energy. To fill this gap, we designed amphibious light-powered actuators according to bilayer aluminum/carbon nanotube-polydimethylsiloxane (Al/CNT-PDMS) composite films with heterostructure. First, a light-driven actuator was designed according to the change in coefficient of thermal expansion (CTEs) between the layers. In the near-infrared (NIR) irradiation, its photothermal conversion efficiency could reach over 90 % with a maximum bending angle of 46.27°. Second, a floating light-powered actuator was designed according to the Marangoni Effect with a moving speed up to 16.7 mm s<sup>−1</sup>. Further, the triboelectric nanogenerator (TENG) made from this composite film achieved an open-circuit voltage of 138 V. Finally, taking advantage of the above characteristics, the Al/CNT-PDMS actuators were used in a series of practical applications towards land and wading environments. These applications including bionic sunflowers, flexible switches, smart curtains, intelligent conveyor belts, and the self-powered light power sensors, demonstrating a broad range of appealing applications.</div></div>","PeriodicalId":21689,"journal":{"name":"Sensors and Actuators A-physical","volume":"385 ","pages":"Article 116301"},"PeriodicalIF":4.1000,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators A-physical","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0924424725001074","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In recent years, multi-functional actuators have caused concern owing to extensive possible applications in biomimetic and intelligent systems. Nonetheless, traditional light-driven actuators with bilayer heterostructure are mostly unsuitable for wading environments. Also, the heat generated can not be effectively utilized. Hence, there is an urgent demand for the progress of light-powered photothermal actuators which can not only be used in amphibious environments, but also utilize photothermal energy. To fill this gap, we designed amphibious light-powered actuators according to bilayer aluminum/carbon nanotube-polydimethylsiloxane (Al/CNT-PDMS) composite films with heterostructure. First, a light-driven actuator was designed according to the change in coefficient of thermal expansion (CTEs) between the layers. In the near-infrared (NIR) irradiation, its photothermal conversion efficiency could reach over 90 % with a maximum bending angle of 46.27°. Second, a floating light-powered actuator was designed according to the Marangoni Effect with a moving speed up to 16.7 mm s−1. Further, the triboelectric nanogenerator (TENG) made from this composite film achieved an open-circuit voltage of 138 V. Finally, taking advantage of the above characteristics, the Al/CNT-PDMS actuators were used in a series of practical applications towards land and wading environments. These applications including bionic sunflowers, flexible switches, smart curtains, intelligent conveyor belts, and the self-powered light power sensors, demonstrating a broad range of appealing applications.
期刊介绍：
Sensors and Actuators A: Physical brings together multidisciplinary interests in one journal entirely devoted to disseminating information on all aspects of research and development of solid-state devices for transducing physical signals. Sensors and Actuators A: Physical regularly publishes original papers, letters to the Editors and from time to time invited review articles within the following device areas:
• Fundamentals and Physics, such as: classification of effects, physical effects, measurement theory, modelling of sensors, measurement standards, measurement errors, units and constants, time and frequency measurement. Modeling papers should bring new modeling techniques to the field and be supported by experimental results.
• Materials and their Processing, such as: piezoelectric materials, polymers, metal oxides, III-V and II-VI semiconductors, thick and thin films, optical glass fibres, amorphous, polycrystalline and monocrystalline silicon.
• Optoelectronic sensors, such as: photovoltaic diodes, photoconductors, photodiodes, phototransistors, positron-sensitive photodetectors, optoisolators, photodiode arrays, charge-coupled devices, light-emitting diodes, injection lasers and liquid-crystal displays.
• Mechanical sensors, such as: metallic, thin-film and semiconductor strain gauges, diffused silicon pressure sensors, silicon accelerometers, solid-state displacement transducers, piezo junction devices, piezoelectric field-effect transducers (PiFETs), tunnel-diode strain sensors, surface acoustic wave devices, silicon micromechanical switches, solid-state flow meters and electronic flow controllers.
Etc...
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
