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Flexible and Robust Electro‐Optically Responsive Films Based on Novel Silica/Oligoaniline/Carbon Dots Composite
Author(s) -
Zhou Yan,
Berda Erik B.,
Ma Qiang,
Liu Xincai,
Wang Ce,
Chao Danming
Publication year - 2019
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201901487
Subject(s) - materials science , siloxane , composite number , electrochromism , photocurrent , carbon fibers , hydrolysis , nanotechnology , chemical engineering , electrode , composite material , optoelectronics , chemistry , polymer , organic chemistry , engineering
We report a new electro‐optical composite film based on silica, oligoaniline, and carbon dots prepared by a hydrolytic crosslinking reaction under electrokinetic potentials. The electroactive oligoaniline and fluorescent carbon dots are covalently linked through hydrolysis of siloxane, resulting in multifunctional composite films. The resultant crosslinked architecture endows the films with high flexibility and robust durability. These films display good electrochromic behavior with an obvious color contrast, quick switching rate, and acceptable cycling stability. Moreover, these films reveal an interesting electrofluorochromic performance in continuous potential ranges, attributed to the interaction between oligoaniline and carbon dots, and the change in structure that occurs with changing redox potentials. Further, an enhanced photocurrent response is observed in these materials, as a result of the organic‐inorganic interfaces.