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Vapor‐Activated Power Generation on Conductive Polymer
Author(s) -
Xue Jiangli,
Zhao Fei,
Hu Chuangang,
Zhao Yang,
Luo Hongxia,
Dai Liming,
Qu Liangti
Publication year - 2016
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.201604188
Subject(s) - polypyrrole , materials science , water vapor , electrical conductor , ionic bonding , conductive polymer , polymer , moisture , power density , voltage , chemical engineering , optoelectronics , ion , nanotechnology , power (physics) , electrical engineering , composite material , organic chemistry , chemistry , polymerization , thermodynamics , physics , engineering
An efficient vapor‐activated power generator based on a 3D polypyrrole (PPy) framework was demonstrated for the first time. By constructing the anions gradient in the PPy, this specially designed PPy framework provided free ionic gradient with the assistant of absorbing water vapor to promote the spontaneous transport of ionic charge carriers, thus leading to the intermittent electric output with the change of external water vapor. A high voltage output of ≈60 mV and power density output of ≈6.9 mW m −2 were achieved under the moisture environment. More interestingly, it also exhibited power generation behaviors upon exposure to most of organic or inorganic vapors, indicating the potential new type of self‐powered vapor sensors for practical applications.