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A Facile Method to Assemble PNIPAM‐Containing Microgel Photonic Crystals
Author(s) -
Zhou Mi,
Xing Fubao,
Ren Meilin,
Feng Yan,
Zhao Yongqiang,
Qiu Haixia,
Wang Xiaodong,
Gao Chunjuan,
Sun Feifei,
He Yongqiang,
Ma Zhiqing,
Wen Pu,
Gao Jianping
Publication year - 2009
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800323
Subject(s) - structural coloration , photonic crystal , materials science , naked eye , photonics , polymer , chemical engineering , acrylamide , isopropyl , nanotechnology , chemistry , optoelectronics , organic chemistry , chromatography , composite material , copolymer , detection limit , engineering
Structural colors: Poly( N ‐isopropyl acrylamide) based microgel photonic crystals are fabricated by using a new method called “high‐temperature‐induced hydrophobic assembly”. The assembling conditions affect the water content of the crystals, thus determining their structural color (see image). The obtained photonic crystals are sensitive to solvents, and the reversible changes in their color can be observed with the naked eye.