Visible-Light-Sensitive Photo-Acid Generator Incorporating Food Dye for Use in Chemically Amplified Resists

DOI Web Site Web Site 13 References
  • Tarumoto Naohiro
    Hodogaya Chemical Co., Ltd.
  • Miyagawa Nobukazu
    Department of Information and Image Sciences, Faculty of Engineering, Chiba University
  • Takahara Shigeru
    Department of Information and Image Sciences, Faculty of Engineering, Chiba University
  • Yamaoka Tsuguo
    Department of Information and Image Sciences, Faculty of Engineering, Chiba University

Search this article

Abstract

Diphenyliodonium 4-(3-N,N-diethylamino-6-diethyliminium-9-xantenyl)-3-sulfonato-phenylsulfonate was designed and prepared. The diphenyliodonium salt with a food dye as a counter anion showed good thermal stability, and had a decomposition temperature of 201.1°C. From the results of our investigation, the mechanism of acid generation is considered to be intramolecular electron transfer from the excited dye moiety to the iodonium. The photosensitivities of the photopolymer with a tetrahydropyranyl protecting group were 2.09 and 0.84 J/cm2 at 488 nm and 514 nm, respectively.

Journal

References(13)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top