材料科学
光电子学
二极管
能量转换
电压
纳米技术
离子
电气工程
化学
物理
有机化学
热力学
工程类
作者
Yong Zhang,Tingting Yang,Kedong Shang,Fengmei Guo,Yuanyuan Shang,Shulong Chang,Licong Cui,Xulei Lu,Zhongbao Jiang,Jian Zhou,Chunqiao Fu,Qi-Chang He
标识
DOI:10.1038/s41467-022-31067-z
摘要
Abstract The continuous energy-harvesting in moisture environment is attractive for the development of clean energy source. Controlling the transport of ionized mobile charge in intelligent nanoporous membrane systems is a promising strategy to develop the moisture-enabled electric generator. However, existing designs still suffer from low output power density. Moreover, these devices can only produce short-term (mostly a few seconds or a few hours, rarely for a few days) voltage and current output in the ambient environment. Here, we show an ionic diode–type hybrid membrane capable of continuously generating energy in the ambient environment. The built-in electric field of the nanofluidic diode-type PN junction helps the selective ions separation and the steady-state one-way ion charge transfer. This directional ion migration is further converted to electron transportation at the surface of electrodes via oxidation-reduction reaction and charge adsorption, thus resulting in a continuous voltage and current with high energy conversion efficiency.
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