Aggregation of dendrimers with a photochromic dithienylethene core group on the mica surface-atomic force microscopic imaging

Jörg Hellmann, Mitsuo Hamano, Olaf Karthaus, Kuniharu Ijiro, Masatsugu Shimomura, Masahiro Irie

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Atomic force microscopic (AFM) imaging revealed that a polyether third generation dendrimer having a photochromic dithienylethene core group forms regularly aligned (hexagonal alignment) droplets of more or less equal size (100-120 nm) and height of the long axis of the dendrimer (5.0 ± 0.5 nm) on a mica surface when the surface is rinsed with a benzene solution of the dendrimer. The size suggests that one droplet contains around 104 dendrimers. The subtle balance among surface hydrophtlicity, hydrophobicity of solvent and dendrimers, and structure or shape of the dendrimers is considered to control the regular alignment.

Original languageEnglish
Pages (from-to)L816-L819
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume37
Issue number7 PART A
DOIs
Publication statusPublished - 1998 Jul 1
Externally publishedYes

Keywords

  • Atomic force microscopy
  • Dendrimer
  • Mica surface
  • Photochromism

ASJC Scopus subject areas

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

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