Interface-mediated hygroelectric generator with an output voltage approaching 1.5 volts

Yaxin Huang, Huhu Cheng (), Ce Yang, Panpan Zhang, Qihua Liao, Houze Yao, Gaoquan Shi and Liangti Qu ()
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Yaxin Huang: Tsinghua University
Huhu Cheng: Tsinghua University
Ce Yang: Tsinghua University
Panpan Zhang: Tsinghua University
Qihua Liao: Tsinghua University
Houze Yao: Tsinghua University
Gaoquan Shi: Tsinghua University
Liangti Qu: Tsinghua University

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract Hygroelectricity is proposed as a means to produce electric power from air by absorbing gaseous or vaporous water molecules, which are ubiquitous in the atmosphere. Here, using a synergy between a hygroscopic bulk graphene oxide with a heterogeneous structure and interface mediation between electrodes/materials with Schottky junctions, we develop a high-performance hygroelectric generator unit with an output voltage approaching 1.5 V. High voltage (e.g., 18 V with 15 units) can be easily reached by simply scaling up the number of hygroelectric generator units in series, enough to drive commercial electronic devices. This work provides insight for the design and development of hygroelectric generators that may promote the efficient conversion of potential energy in the environmental atmosphere to electricity for practical applications.

Date: 2018
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DOI: 10.1038/s41467-018-06633-z

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