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However, conventional DEGs are fundamentally limited by their narrow energy collection zones, confined to regions immediately adjacent to the switch electrode. In nature, Aloe vera overcomes a similar spatial challenge by guiding scarce rainfall toward the root through its midrib\u2010like longitudinal ridge and water\u2010repellent wax\u2010rich cuticle\u2014an integrated water\u2010guiding architecture that transports droplets over long distances with minimal loss. Here, inspired by this mechanism, we introduce a scalable DEG that maximizes the energy collection zone through an artificial droplet\u2010channeling strategy. A midrib\u2010inspired curvilinear geometry induces uni\u2010directional spreading upon impact, while an artificial hydrophobic cuticle composed of a hydrocarbon\u2010based OTS\u2013squalane layer enables smooth, low\u2010retention sliding and robust interfacial stability. These features substantially expand the effective collection zone and yield approximately 236% higher charge output than a conventional DEG, unlocking new opportunities for large\u2010area, distributed, and environmentally adaptive droplet\u2010energy harvesting.<\/jats:p>","DOI":"10.1002\/adma.202523637","type":"journal-article","created":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T08:04:04Z","timestamp":1773302644000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe\u2010Inspired Midrib and Cuticle"],"prefix":"10.1002","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-3359-0682","authenticated-orcid":false,"given":"Gibeom","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering Kyung Hee University  Yongin Republic of 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