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In‐Plane Micro‐Supercapacitors for an Integrated Device on One Piece of Paper
Author(s) -
Guo Ruisheng,
Chen Jiangtao,
Yang Bingjun,
Liu Lingyang,
Su Lijun,
Shen Baoshou,
Yan Xingbin
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201702394
Subject(s) - supercapacitor , materials science , wearable computer , energy harvesting , nanotechnology , wearable technology , inkwell , interface (matter) , substrate (aquarium) , computer science , power (physics) , electrical engineering , embedded system , capacitance , engineering , chemistry , physics , electrode , quantum mechanics , capillary number , capillary action , composite material , oceanography , geology
Portable and wearable sensors have attracted considerable attention in the healthcare field because they can be worn or implanted into a human body to monitor environmental information. However, sensors cannot work independently and require power. Flexible in‐plane micro‐supercapacitor (MSC) is a suitable power device that can be integrated with sensors on a single chip. Meanwhile, paper is an ideal flexible substrate because it is cheap and disposable and has a porous and rough surface that enhances interface adhesion with electronic devices. In this study, a new strategy to integrate MSCs, which have excellent electrochemical and mechanical performances, with sensors on a single piece of paper is proposed. The integration is achieved by printing Ni circuit on paper without using a precoating underlay. Ink diffusion is also addressed to some degree. Meanwhile, a UV sensor is integrated on a single paper, and the as‐integrated device shows good sensing and self‐powering capabilities. MSCs can also be integrated with a gas sensor on one‐piece paper and can be charged by connecting it to a solar cell. Thus, it is potentially feasible that a flexible paper can be used for integrating MSCs with solar cell and various sensors to generate, store, and use energy.