Communication “Advanced Optical Materials”

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Photoresponsive Block Copolymer Photonic Gels with Widely Tunable Photosensitivity by Counter-Ions

  1. Youshin Ahn,
  2. Eunjoo Kim,
  3. Jinho Hyon,
  4. Changjoon Kang,
  5. Youngjong Kang*

Article first published online: 10 FEB 2012

DOI: 10.1002/adma.201103767

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 23, pages OP127–OP130, June 19, 2012

Additional Information

How to Cite

Ahn, Y., Kim, E., Hyon, J., Kang, C. and Kang, Y. (2012), Photoresponsive Block Copolymer Photonic Gels with Widely Tunable Photosensitivity by Counter-Ions. Adv. Mater., 24: OP127–OP130. doi: 10.1002/adma.201103767

Author Information

  1. Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133-791, Korea

*Department of Chemistry, Research Institute for Natural Sciences and Institute of Nano Science and Technology, Hanyang University, 17 Haengdang Dong, Seongdong Gu, Seoul, 133-791, Korea.

Publication History

  1. Issue published online: 12 JUN 2012
  2. Article first published online: 10 FEB 2012
  3. Manuscript Revised: 29 DEC 2011
  4. Manuscript Received: 1 OCT 2011

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Keywords:

  • photonic crystals;
  • hydrogels;
  • photocrosslinking;
  • counter-ions;
  • tunable photosensitivity
Thumbnail image of graphical abstract

Block copolymer photonic crystals comprising polyelectrolyte hydrogels exhibit strong reflective multicolors in response to near-UV radiation. Due to unique volume transition of swollen gels, the photonic gels show high photosensitivity, and which can be widely tunable by exchanging counter-anions. Multicolor photonic patterns created by photolithography can be repeatedly fixated and reactivated by sequentially exchanging counter-anions with different photosensitivity.

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