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. 2015 Aug 5;27(29):4351-7.
doi: 10.1002/adma.201501867. Epub 2015 Jun 18.

Direct Power Generation from a Graphene Oxide Film under Moisture

Fei Zhao  1 , Huhu Cheng  1 , Zhipan Zhang  1 , Lan Jiang  2 , Liangti Qu  1
Affiliations

Direct Power Generation from a Graphene Oxide Film under Moisture

Fei Zhao et al. Adv Mater. .

Abstract

An efficient moisture-electric-energy transformation is discovered by means of establishing an oxygen functional group gradient in a graphene oxide film. The moisture variation serves as an energy source to generate electric power with an energy-conversion efficiency of up to ≈62%. Based on this finding, a prototype power generator and a self-powered respiratory monitor are demonstrated under the stimulus of the human breath.

Keywords: gradients; graphene oxide; moisture; power generation.

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