Scalable fabrication of hierarchically structured graphite/polydimethylsiloxane composite films for large-area triboelectric nanogenerators and self-powered tactile sensing

Sun，Qi Jun1; Lei，Yanqiang2; Zhao，Xin Hua3; Han，Jing2; Cao，Ran2; Zhang，Jintao2; Wu，Wei1; Heidari，Hadi4; Li，Wen Jung5; Sun，Qijun2; Roy，Vellaisamy A.L.4

2021-02-01

10.1016/j.nanoen.2020.105521

Nano Energy   影响因子和分区

2211-2855

2211-3282

Health monitoring, e-skin, and soft robotics call for large-area and robust energy-harvesting strategy to powering their embedded sensors and peripheral electronics. Triboelectric nanogenerator (TENG) is an optimum option to energizing self-powered sensors and self-charging systems. Herein, a large-scale facile and compatible bar-assisted printing method is presented to achieve hierarchically microstructured polymer composite triboelectric film with good hydrophobicity to improve the electrical output performance and achieve the robustness of TENG. The electrical outputs of the TENG devices are tuned by imparting the graphite fillers into polydimethylsiloxane (PDMS) with optimal concentration. The achieved microstructured graphite/PDMS composite based TENG supplies high and stable short-circuit current of 42 µA, open-circuit voltage of 410 V, and transferred charges of 160 nC under an applied force of 1.2 N, which are sufficient enough to power wearable sensors or charge the energy storage devices. The TENG devices can charge a 2.2 µf capacitor to 1.5 V within 2 s, lighten 30 commercial green LEDs, and drive an electronic watch as well. Self-powered tactile sensing has also been demonstrated by attaching the TENG devices onto a rubber glove to monitor the process in grasping objects. Furthermore, a large-scale self-powered sensor array is fabricated and utilized to map the spatial pressure distributions. This work not only demonstrates a scalable fabrication of the hierarchically microstructured polymer composite films for high-performance TENGs with high electrical outputs, excellent durability and ambient stability, but also brings insight into the development of future cost-effective and self-powered electronics.

Energy harvesters Microstructures Polymer composite Scalable fabrication Tactile sensing

EI ; SCI

英语

其他

Research Grants Council of Hong Kong (General Research Fund)[CityU 11210819] ; National Key Research and Development Program of China[2016YFA0202703] ; Fundamental Research Funds for the Central Universities[E0EG6801X2] ; Beijing Nova Program[Z191100001119047]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000618009600001

ELSEVIER

20204509458619

Microstructure ; Open circuit voltage ; Nanogenerators ; Polymer films ; Wearable sensors ; Cost effectiveness ; Triboelectricity ; Silicones ; Flexible electronics ; Graphite ; Polydimethylsiloxane

Electricity: Basic Concepts and Phenomena:701.1 ; Electric Generators:705.2 ; Electronic Equipment, General Purpose and Industrial:715 ; Polymeric Materials:815.1 ; Organic Polymers:815.1.1 ; Industrial Economics:911.2 ; Materials Science:951

2-s2.0-85094946765

Scopus

1.State Key Laboratory of Terahertz and Millimeter Waves and Department of Materials Science & Engineering,City University of Hong Kong,Kowloon,999077,China
2.Beijing Institute of Nanoenergy and Nanosystems,Chinese Academy of Sciences,Beijing,100083,China
3.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
4.James Watt School of Engineering,University of Glasgow,Glasgow,G12 8QQ,United Kingdom
5.Department of Mechanical Engineering,City University of Hong Kong,Kowloon,999077,China

Sun，Qi Jun,Lei，Yanqiang,Zhao，Xin Hua,et al. Scalable fabrication of hierarchically structured graphite/polydimethylsiloxane composite films for large-area triboelectric nanogenerators and self-powered tactile sensing[J]. Nano Energy,2021,80.

Sun，Qi Jun.,Lei，Yanqiang.,Zhao，Xin Hua.,Han，Jing.,Cao，Ran.,...&Roy，Vellaisamy A.L..(2021).Scalable fabrication of hierarchically structured graphite/polydimethylsiloxane composite films for large-area triboelectric nanogenerators and self-powered tactile sensing.Nano Energy,80.

Sun，Qi Jun,et al."Scalable fabrication of hierarchically structured graphite/polydimethylsiloxane composite films for large-area triboelectric nanogenerators and self-powered tactile sensing".Nano Energy 80(2021).