Photoresponsive block copolymer photonic gels with widely tunable photosensitivity by counter-ions

Youshin Ahn, Eunjoo Kim, Jinho Hyon, Changjoon Kang, YoungJong Kang

Research output: Contribution to journalArticle

15 Citations (Scopus)

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.

Original languageEnglish
JournalAdvanced Materials
Volume24
Issue number23
DOIs
StatePublished - 2012 Jun 19

Fingerprint

Photosensitivity
Radiation counters
Photonics
Block copolymers
Anions
Negative ions
Gels
Hydrogels
Photolithography
Photonic crystals
Polyelectrolytes
Ultraviolet radiation

Keywords

  • counter-ions
  • hydrogels
  • photocrosslinking
  • photonic crystals
  • tunable photosensitivity

Cite this

Ahn, Youshin ; Kim, Eunjoo ; Hyon, Jinho ; Kang, Changjoon ; Kang, YoungJong. / Photoresponsive block copolymer photonic gels with widely tunable photosensitivity by counter-ions. In: Advanced Materials. 2012 ; Vol. 24, No. 23.
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Photoresponsive block copolymer photonic gels with widely tunable photosensitivity by counter-ions. / Ahn, Youshin; Kim, Eunjoo; Hyon, Jinho; Kang, Changjoon; Kang, YoungJong.

In: Advanced Materials, Vol. 24, No. 23, 19.06.2012.

Research output: Contribution to journalArticle

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