A facile method to assemble PNIPAM-containing microgel photonic crystals.
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.
Zhou
Mi
M
Department of Chemistry, School of Science, Tianjin University, Weijin Road, Tianjin, China.
Xing
Fubao
F
Ren
Meilin
M
Feng
Yan
Y
Zhao
Yongqiang
Y
Qiu
Haixia
H
Wang
Xiaodong
X
Gao
Chunjuan
C
Sun
Feifei
F
He
Yongqiang
Y
Ma
Zhiqing
Z
Wen
Pu
P
Gao
Jianping
J