ScholarWorks@성균관대학교

초록

Triboelectric nanogenerators (TENGs) and moisture-enabled electricity generators (MEGs) demonstrate significant potential in promoting sustainable energy development and supporting low-power IoT devices. Inspired by the different functional structures of dual-epidermis of plant leaves, this study proposes a bioinspired Janus structured energy-leaf with hybrid triboelectric-moisture hybrid energy harvesters in up and down structure. The upper layer utilizes a silica-based flame-retardant hydrophobic material to construct the TENG component, which provides a robust triboelectric layer for efficiently harvesting various forms of mechanical energy (e.g., fundamental contact-separation mode with output voltage of 16.1 V and power density of 0.9 & micro;W & centerdot;cm- 2; solid-liquid contact mode with output voltage of 19.45 V and power density of 17.1 & micro;W & centerdot;cm- 2). The bottom layer employs a carbon-based aerogel as the MEG component, enabling continuous output through environmental humidity modulation and maintaining stable performance even under high-humidity conditions (697 mV, 0.68 & micro;W & centerdot;cm- 2). As a proof of concept, this hybrid energy harvester is demonstrated in an intelligent emergency system for effective distress signaling and in smart agriculture greenhouse ventilation systems. This study provides a novel strategy for developing high-performance, environmentally adaptive, and structurally integrated energy harvesting systems, holding significant scientific research value and promising engineering application prospects.

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