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Herein, a novel sandfish scale\u2010inspired self\u2010healing fluorinated copolymer\u2010based triboelectric layer is directly incorporated on top of the polysilicon solar cell for sustained hybrid energy harvesting. The transparent biomimetic layer, with distinctive saw\u2010tooth microstructured morphology, exhibits ultra\u2010low sand adhesion and high abrasion\u2010resistant properties, inhibits sedimentation deposition on solar cells, and concurrently harvests kinetic energy from wind\u2010driven sand particles through triboelectric nanogenerator (TENG). The film exhibits a low friction coefficient (0.149), minimal sand adhesion force (27 nN), and a small wear area (327 \u00b5m<jats:sup>2<\/jats:sup>). In addition, over 2 months, a solar cell with the sandfish scale\u2010inspired structure demonstrates only a 16% decline in maximum power output compared to the bare solar cell, which experiences a 60% decline. Further, the sandfish scale\u2010based TENG device's electrical output is fully restored to its original value after a 6\u2010h self\u2010healing cycle and maintains consistent stable outputs. These results highlight the exceptional advantages of employing biomimetic self\u2010healing materials as robust triboelectric layers, showcasing sustained device stability and durability for prolonged use in harsh desert environments, ultimately contributing to a low cost\u2010of\u2010electricity generation paradigm.<\/jats:p>","DOI":"10.1002\/smll.202404637","type":"journal-article","created":{"date-parts":[[2024,8,16]],"date-time":"2024-08-16T20:49:27Z","timestamp":1723841367000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Self\u2010Healable Sandfish Scale\u2010Inspired Scalable Triboelectric Layer for Hybrid Energy Harvesting in Desert Environment"],"prefix":"10.1002","volume":"21","author":[{"given":"An\u2010Rong","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering National Tsing Hua University  Hsinchu 30013 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