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Photonic Crystals: Photoresponsive Block Copolymer Photonic Gels with Widely Tunable Photosensitivity by Counter-Ions (Adv. Mater. 23/2012)

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

Article first published online: 12 JUN 2012

DOI: 10.1002/adma.201290136

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 23, page OP89, June 19, 2012

Additional Information

How to Cite

Ahn, Y., Kim, E., Hyon, J., Kang, C. and Kang, Y. (2012), Photonic Crystals: Photoresponsive Block Copolymer Photonic Gels with Widely Tunable Photosensitivity by Counter-Ions (Adv. Mater. 23/2012). Adv. Mater., 24: OP89. doi: 10.1002/adma.201290136

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: 12 JUN 2012

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Keywords:

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

Block copolymer photonic gels exhibiting multiple colors in response to near-UV radiation are demonstrated by Y. Kang and co-workers on page OP 127. The counterions pairing with the polyelectrolyte in the gel layers determine the photosensitivity of photonic gels. The simple replacement of ions can make the photonic gels either highly sensitive or insensitive to near-UV. The illustration shows ionic signaling giving “STOP” and “GO” cues for the photoresponse of these photonic gels.

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