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Gel‐Immobilized Colloidal Crystal Shell with Enhanced Thermal Sensitivity at Photonic Wavelengths
Author(s) -
Kanai Toshimitsu,
Lee Daeyeon,
Shum Ho Cheung,
Shah Rhutesh K.,
Weitz David A.
Publication year - 2010
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/adma.201002055
Subject(s) - materials science , microfluidics , colloidal crystal , colloid , photonic crystal , wavelength , crystal (programming language) , sensitivity (control systems) , thermal , nanotechnology , diffraction , photonics , shell (structure) , particle size , chemical engineering , optoelectronics , optics , composite material , computer science , physics , electronic engineering , meteorology , engineering , programming language
A method for fabricating microcapsules with gel‐immobilized colloidal crystal shells using microfluidics is reported. The diffraction color or photonic wavelength of the gel‐immobilized colloidal crystal shells can be adjusted by varying the particle concentration before gelation and tuned by external stimuli after preparation. The gel‐immobilized colloidal crystal shell has a higher sensitivity and wider range in the stop band wavelength than that displayed by a bulk gel.