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Light‐Triggered Molecular Level Self‐Healing Spiropyran Thin Film
Author(s) -
Yang Bingjie,
Liu Juehuan,
Zheng Hongzhi,
Zhang Sean XiaoAn
Publication year - 2013
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201300639
Subject(s) - spiropyran , thin film , chemistry , substrate (aquarium) , self healing , molecule , fabrication , shrinkage , nanotechnology , optoelectronics , chemical engineering , composite material , materials science , organic chemistry , medicine , oceanography , alternative medicine , pathology , geology , engineering
Abstract Spiropyran thin film with capability of light‐triggered molecular level self‐healing has been successfully designed and fabricated by Langmuir‐Blodgett technology. Various remarkable properties of thin film shrinkage or height increase or self‐healing nano‐defect recovery under different fabrication conditions have been observed. In addition, further evidence of the self‐healing, which resulted from the movement of spiropyran molecules (such as "standing" "lie‐down" and "tip‐toes" etc. ) on the substrate, has also been observed from the reversible contact angle change of the thin film.