Nano‐Oil‐Barrier‐Based Fluttering Triboelectric Nanogenerator
Abstract In the field of triboelectric nanogenerators (TENGs), the application of a thin lubricant layer on the contact surface and its maintenance for long‐term cycling remain important challenges for improving the mechanical‐electrical stability of TENGs. Herein, a simple and innovative approach i...
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| Format: | Article |
| Language: | English |
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Wiley
2025-08-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202502278 |
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| author | Deokjae Heo Jiwoong Hur Hyeonho Cho Kyunghwan Cha Jaeung Choi Moonhyun Choi Jinkee Hong Sunghan Kim Sangmin Lee |
| author_facet | Deokjae Heo Jiwoong Hur Hyeonho Cho Kyunghwan Cha Jaeung Choi Moonhyun Choi Jinkee Hong Sunghan Kim Sangmin Lee |
| author_sort | Deokjae Heo |
| collection | DOAJ |
| description | Abstract In the field of triboelectric nanogenerators (TENGs), the application of a thin lubricant layer on the contact surface and its maintenance for long‐term cycling remain important challenges for improving the mechanical‐electrical stability of TENGs. Herein, a simple and innovative approach is proposed to solve this dilemma using commercial oil‐absorbing sheets and oil infusion steps. In particular, a wind‐driven nano‐oil‐barrier‐based fluttering triboelectric nanogenerator (NF‐TENG) is developed. The nano‐oil barrier (of nanoscale thickness) of NF‐TENG is thoroughly analyzed using atomic force microscopy imaging and electrical‐mechanical measurement/calculation results. Compared with other control groups, only NF‐TENG maintains 95% output performance from 100% initial output performance, and device damage is minimized even after 970,000 cycles. The mechanism of NF‐TENG and its differences from previous studies are established. NF‐TENG is optimized and studied for various design variables and wind speeds. NF‐TENG generated a peak power of 468 µW with 100 Hz and an average power of 166 µW at optimum load resistance, under a breeze wind speed of 6 m s−1. NF‐TENG demonstrates its applications in two real‐life scenarios: 1) wind harvesting at a rooftop vent pipe for outdoor temperature‐humidity sensing, and 2) wind harvesting during bicycle riding for safety light illumination. |
| format | Article |
| id | doaj-art-9cd8eb46397a485bb2e460b9caa6e0eb |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-9cd8eb46397a485bb2e460b9caa6e0eb2025-08-20T11:56:10ZengWileyAdvanced Science2198-38442025-08-011230n/an/a10.1002/advs.202502278Nano‐Oil‐Barrier‐Based Fluttering Triboelectric NanogeneratorDeokjae Heo0Jiwoong Hur1Hyeonho Cho2Kyunghwan Cha3Jaeung Choi4Moonhyun Choi5Jinkee Hong6Sunghan Kim7Sangmin Lee8Center for Systems Biology Massachusetts General Hospital, Harvard Medical School Boston MA 02114 USASchool of Mechanical Engineering Chung‐Ang University 84, Heukseok‐ro, Dongjak‐gu Seoul 06974 Republic of KoreaSchool of Mechanical Engineering Chung‐Ang University 84, Heukseok‐ro, Dongjak‐gu Seoul 06974 Republic of KoreaSchool of Mechanical Engineering Chung‐Ang University 84, Heukseok‐ro, Dongjak‐gu Seoul 06974 Republic of KoreaSchool of Mechanical Engineering Chung‐Ang University 84, Heukseok‐ro, Dongjak‐gu Seoul 06974 Republic of KoreaCenter for Systems Biology Massachusetts General Hospital, Harvard Medical School Boston MA 02114 USADepartment of Chemical & Biomolecular Engineering College of Engineering Yonsei University 50 Yonsei‐ro, Seodaemun‐gu Seoul 03722 South KoreaSchool of Mechanical Engineering Chung‐Ang University 84, Heukseok‐ro, Dongjak‐gu Seoul 06974 Republic of KoreaSchool of Mechanical Engineering Chung‐Ang University 84, Heukseok‐ro, Dongjak‐gu Seoul 06974 Republic of KoreaAbstract In the field of triboelectric nanogenerators (TENGs), the application of a thin lubricant layer on the contact surface and its maintenance for long‐term cycling remain important challenges for improving the mechanical‐electrical stability of TENGs. Herein, a simple and innovative approach is proposed to solve this dilemma using commercial oil‐absorbing sheets and oil infusion steps. In particular, a wind‐driven nano‐oil‐barrier‐based fluttering triboelectric nanogenerator (NF‐TENG) is developed. The nano‐oil barrier (of nanoscale thickness) of NF‐TENG is thoroughly analyzed using atomic force microscopy imaging and electrical‐mechanical measurement/calculation results. Compared with other control groups, only NF‐TENG maintains 95% output performance from 100% initial output performance, and device damage is minimized even after 970,000 cycles. The mechanism of NF‐TENG and its differences from previous studies are established. NF‐TENG is optimized and studied for various design variables and wind speeds. NF‐TENG generated a peak power of 468 µW with 100 Hz and an average power of 166 µW at optimum load resistance, under a breeze wind speed of 6 m s−1. NF‐TENG demonstrates its applications in two real‐life scenarios: 1) wind harvesting at a rooftop vent pipe for outdoor temperature‐humidity sensing, and 2) wind harvesting during bicycle riding for safety light illumination.https://doi.org/10.1002/advs.202502278durabilityenergy harvestinglubricationnano‐oil‐barrierstabilitytriboelectric nanogenerator |
| spellingShingle | Deokjae Heo Jiwoong Hur Hyeonho Cho Kyunghwan Cha Jaeung Choi Moonhyun Choi Jinkee Hong Sunghan Kim Sangmin Lee Nano‐Oil‐Barrier‐Based Fluttering Triboelectric Nanogenerator Advanced Science durability energy harvesting lubrication nano‐oil‐barrier stability triboelectric nanogenerator |
| title | Nano‐Oil‐Barrier‐Based Fluttering Triboelectric Nanogenerator |
| title_full | Nano‐Oil‐Barrier‐Based Fluttering Triboelectric Nanogenerator |
| title_fullStr | Nano‐Oil‐Barrier‐Based Fluttering Triboelectric Nanogenerator |
| title_full_unstemmed | Nano‐Oil‐Barrier‐Based Fluttering Triboelectric Nanogenerator |
| title_short | Nano‐Oil‐Barrier‐Based Fluttering Triboelectric Nanogenerator |
| title_sort | nano oil barrier based fluttering triboelectric nanogenerator |
| topic | durability energy harvesting lubrication nano‐oil‐barrier stability triboelectric nanogenerator |
| url | https://doi.org/10.1002/advs.202502278 |
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