Photopolymer composed of a photosensitive polymer binder bearing a chalcone moiety in the repeating unit

Min Ju Cho, Hyuk Yoon, Dejun Feng, Hanna Yoon, Dong Hoon Choi

Research output: Contribution to journalArticle

Abstract

New photopolymers were designed and prepared using the photosensitive polymer binders. Holographic gratings were successfully fabricated in these photopolymer samples by a conventional optical interference method. We also investigated the effect of photocrosslink in the polymer binder on the diffraction behavior of a new photopolymer. The dynamic behavior of the grating formation was monitored by changing exposure intensity in terms of the diffraction efficiency. Particularly, we focused our efforts in observing the variation of diffraction efficiency during a post UV curing process. The surface topographical change of photopolymer layer before and after Vis/UV light exposure was observed by atomic force microscope (AFM). We inscribed the gratings of the glass diffuser on the surface of the photopolymer and investigated their diffusing properties. The diffusers with photopolymer with the main chain polymer binder showed relatively good viewing angle of around ±30°. Two kinds of photopolymer showed similar uniformity of around 47–54%.

Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalJournal of Information Display
Volume7
Issue number2
DOIs
Publication statusPublished - 2006

Keywords

  • Diffraction efficiency
  • Diffuser
  • Holographic grating
  • Photopolymer
  • UV exposure

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering

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