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Tuning Solvent‐Dependent Color Changes of Three‐Dimensionally Ordered Macroporous (3DOM) Materials Through Compositional and Geometric Modifications
Author(s) -
Blanford C. F.,
Schroden R. C.,
AlDaous M.,
Stein A.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200101)13:1<26::aid-adma26>3.0.co;2-s
Subject(s) - materials science , structural coloration , refractive index , wavelength , solvent , inverse , cubic zirconia , composite material , chemical engineering , optoelectronics , photonic crystal , geometry , organic chemistry , chemistry , engineering , ceramic , mathematics
Striking color changes in the visible spectrum are produced when the voids of three‐dimensionally ordered macroporous (3DOM) silica, alumina, and zirconia (“inverse opals”) are filled with solvents, it is reported here (see Figure). The wavelength of these colors is linearly related to the refractive index of the fluid filling the pores and can be tuned by modifying the refractive index of the wall material as well as the size and spacing of the pores.