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[[Vol. 71]Harvesting Energy at Nanoscale with Triboelectric Nanogenerators (TENG)_ WPI-MANA.pdf](https://mdr.nims.go.jp/filesets/38a7d48e-1d46-421b-9e29-0e61c730fc0b/download)

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International Center for Materials Nanoarchitectonics (WPI-MANA)

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[[Research Highlights Vol.71] Harvesting Energy at Nanoscale with Triboelectric Nanogenerators (TENG)](https://mdr.nims.go.jp/datasets/c9920663-c72e-4ab8-91d7-eefe0c39afdc)

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2022/03/31 16:07 Harvesting Energy at Nanoscale with Triboelectric Nanogenerators (TENG)| MANAhttps://www.nims.go.jp/mana/research/highlights/vol71.html 1/2Previous  Index  NextResearch Highlights[Vol. 71]Harvesting Energy at Nanoscale with Triboelectric Nanogenerators (TENG)12 Nov, 2021New research at MANA advances the field of triboelectric nanogenerators (TENG),devices that hold promise in wireless charging of energy storage devices such asbatteries and capacitors. This could pave the way for new ways to harvest mechanicalenergy without the need for any external amplification and boosters, and wirelesslytransmit the generated energy for storage.A triboelectric nanogenerator is an energy-harvesting device that converts external mechanicalenergy at nanoscale into electricity. These devices can be used to utilize all kinds of mechanicalenergy that is available but wasted in daily life, such as human motion, walking, vibration andmechanical triggering.The technology has been generating avid interest worldwide. The first papers on TENG werepublished only recently, in 2012, by Prof. Zhong Lin Wang’s group at the Georgia Institute ofTechnology, and since then the performance and efficiency of the devices have improveddramatically. Early on, it was found that adding nanostructures to the surfaces of the activematerials improved their efficiency, as it increases the surface area and thus the amount of chargetransfer.The MANA team, led by Ken C. Pradel of MANA and Naoki Fukata, Principal Investigator and GroupLeader of MANA’s Nanostructured Semiconducting Materials Group, devised a simple geometrichttps://www.nims.go.jp/mana/research/highlights/vol70.htmlhttps://www.nims.go.jp/mana/research/highlights/index.htmlhttps://www.nims.go.jp/mana/research/highlights/vol72.htmlhttps://samurai.nims.go.jp/profiles/fukata_naoki?locale=en2022/03/31 16:07 Harvesting Energy at Nanoscale with Triboelectric Nanogenerators (TENG)| MANAhttps://www.nims.go.jp/mana/research/highlights/vol71.html 2/2model showing how arrays of hemispheres can interlock and increase the amount of surfacecontact.They correlated this with a polyamide and polyvinylidene fluoride model system, TENG. They foundthat by tuning the spacing between the pattern features, the output voltage and current can begreatly improved.“By deepening our understanding of the surface interactions in these devices, we can optimizethem in smarter ways to reduce cost and improve performance,” they said.This research was carried out by Ken C. Pradel, JSPS Fellow at the time of research (WPI-MANA),and his collaborator.Reference“Systematic Optimization of Triboelectric Nanogenerator Performance Through SurfaceMicropatterning”Ken C. Pradel and Naoki FukataJournal: Nano Energy Volume 83 [May 2021]DOI : 10.1016/j.nanoen.2021.105856（MANA E-BULLETIN）https://www.nims.go.jp/mana/ebulletin/AffiliationsInternational Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for MaterialsScience (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, JapanContact informationInternational Center for Materials Nanoarchitectonics(WPI-MANA)National Institute for Materials Science1-1 Namiki, Tsukuba, Ibaraki 305-0044 JapanPhone: +81-29-860-4710E-mail: mana-pr[AT]ml.nims.go.jphttps://samurai.nims.go.jp/profiles/fukata_naoki?locale=enhttps://doi.org/10.1016/j.nanoen.2021.105856https://www.nims.go.jp/mana/ebulletin/