Full color stop bands in hybrid organic/inorganic block copolymer photonic gels by swelling-freezing. Academic Article uri icon

abstract

  • We report a facile way of fabricating hybrid organic/inorganic photonic gels by selective swelling and subsequent infiltration of SiO(2) into one type of lamellar microdomain previously self-assembled from modest-molecular-weight block copolymers. Transparent, in-plane lamellar films were first prepared by assembly of polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP), and subsequently the P2VP domains were swollen with a selective solvent, methanol. The swollen structures were then fixated by synthesizing SiO(2) nanoparticles within P2VP domains. The resulting frozen photonic gels (f-photonic gels) exhibited strong reflective colors with stop bands across the visible region of wavelengths.

published proceedings

  • J Am Chem Soc

altmetric score

  • 6

author list (cited authors)

  • Kang, C., Kim, E., Baek, H., Hwang, K., Kwak, D., Kang, Y., & Thomas, E. L.

citation count

  • 102

complete list of authors

  • Kang, Changjoon||Kim, Eunjoo||Baek, Heeyoel||Hwang, Kyosung||Kwak, Dongwoo||Kang, Youngjong||Thomas, Edwin L

publication date

  • June 2009