Heat‐Excitation‐Based Triboelectric Charge Promotion Strategy
Abstract The surface charge decay is observed at high temperatures due to thermionic emission, which, however, may not be the only mechanism contributing to the surface charge variation. Here, a triboelectric charge promotion strategy due to the heat‐excitation effect of hot electrons near the fermi...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-11-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202404489 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850200238542815232 |
|---|---|
| author | Xin Xia Yunlong Zi |
| author_facet | Xin Xia Yunlong Zi |
| author_sort | Xin Xia |
| collection | DOAJ |
| description | Abstract The surface charge decay is observed at high temperatures due to thermionic emission, which, however, may not be the only mechanism contributing to the surface charge variation. Here, a triboelectric charge promotion strategy due to the heat‐excitation effect of hot electrons near the fermi level is demonstrated, while the final charge is determined by the balance between thermionic emission and the heat‐excitation effect. It is demonstrated that metals with lower work function exhibit a better heat excitation capability, and polymers with lower fluorine content in molecule chains further boost the charge output, where metal/Kapton pairs demonstrated a charge promotion of over 2 times at the temperature of 383 K with good durability during 90 min measurement. The heat‐excitation effect and charge durability in sliding freestanding‐triboelectric‐layer (SFT) mode triboelectric nanogenerator (TENG) is demonstrated as well, where the energy is promoted by over 3 times and the capacitor charging speed is doubled as well, with an energy promotion from 109.34 to 373 µJ per cycle to successfully trigger a discharger. This work suggests a promising future of the heat‐excitation effect as a new charge promotion strategy for TENG toward different applications in high‐temperature environments. |
| format | Article |
| id | doaj-art-8ecedf92dbbd41d4bb5ba6c884d536a2 |
| institution | OA Journals |
| issn | 2198-3844 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-8ecedf92dbbd41d4bb5ba6c884d536a22025-08-20T02:12:24ZengWileyAdvanced Science2198-38442024-11-011141n/an/a10.1002/advs.202404489Heat‐Excitation‐Based Triboelectric Charge Promotion StrategyXin Xia0Yunlong Zi1Thrust of Sustainable Energy and Environment The Hong Kong University of Science and Technology (Guangzhou) Nansha Guangzhou Guangdong 511400 ChinaThrust of Sustainable Energy and Environment The Hong Kong University of Science and Technology (Guangzhou) Nansha Guangzhou Guangdong 511400 ChinaAbstract The surface charge decay is observed at high temperatures due to thermionic emission, which, however, may not be the only mechanism contributing to the surface charge variation. Here, a triboelectric charge promotion strategy due to the heat‐excitation effect of hot electrons near the fermi level is demonstrated, while the final charge is determined by the balance between thermionic emission and the heat‐excitation effect. It is demonstrated that metals with lower work function exhibit a better heat excitation capability, and polymers with lower fluorine content in molecule chains further boost the charge output, where metal/Kapton pairs demonstrated a charge promotion of over 2 times at the temperature of 383 K with good durability during 90 min measurement. The heat‐excitation effect and charge durability in sliding freestanding‐triboelectric‐layer (SFT) mode triboelectric nanogenerator (TENG) is demonstrated as well, where the energy is promoted by over 3 times and the capacitor charging speed is doubled as well, with an energy promotion from 109.34 to 373 µJ per cycle to successfully trigger a discharger. This work suggests a promising future of the heat‐excitation effect as a new charge promotion strategy for TENG toward different applications in high‐temperature environments.https://doi.org/10.1002/advs.202404489charge promotionheat‐excitation effectthermionic emissiontriboelectric charge |
| spellingShingle | Xin Xia Yunlong Zi Heat‐Excitation‐Based Triboelectric Charge Promotion Strategy Advanced Science charge promotion heat‐excitation effect thermionic emission triboelectric charge |
| title | Heat‐Excitation‐Based Triboelectric Charge Promotion Strategy |
| title_full | Heat‐Excitation‐Based Triboelectric Charge Promotion Strategy |
| title_fullStr | Heat‐Excitation‐Based Triboelectric Charge Promotion Strategy |
| title_full_unstemmed | Heat‐Excitation‐Based Triboelectric Charge Promotion Strategy |
| title_short | Heat‐Excitation‐Based Triboelectric Charge Promotion Strategy |
| title_sort | heat excitation based triboelectric charge promotion strategy |
| topic | charge promotion heat‐excitation effect thermionic emission triboelectric charge |
| url | https://doi.org/10.1002/advs.202404489 |
| work_keys_str_mv | AT xinxia heatexcitationbasedtriboelectricchargepromotionstrategy AT yunlongzi heatexcitationbasedtriboelectricchargepromotionstrategy |