Self-Assembled nano-heterostructural thin film for optical lens

Kouji Fujimoto, Kyu Hong Kyung, Seimei Shiratori

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The layer-by-layer (LBL) self-assembly method enables the deposition of functional nanoscale multilayer thin films on intricate-shape substrates. The present problem with optical devices is the formation of a uniform coating of a nanoscale heterostructural thin film on both faces of the lens. In this paper, we introduce self-assembled heterostructural optical films with higher- and lower-refractive index layers, which were fabricated using a stable water base titanium complex [titanium(IV) bis(ammonium lactato) dihydroxide (TALH)] and cationic and anionic polyelectrolytes [poly(diallyldimethylammonium chloride) (PDDA)] and [poly(acrylic acid) (PAA)] on a lens via the LBL method. The antireflectance characteristics of (PDDA/TALH)20/(PDDA/PAA)20 showed a maximum transmittance of 99.2% with (PDDA/TALH)20 (ca. 1.75, 80 nm) and (PDDA/PAA)20 (ca. 1.48, 87 nm) on both faces of the lens. These results demonstrate that we can control the refractive index and film thickness of self-assembled nano-heterostructural films on optical lenses.

Original languageEnglish
Article number045803
JournalJapanese journal of applied physics
Volume50
Issue number4 PART 1
DOIs
Publication statusPublished - 2011 Apr 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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