Phase transition in the molecular crystal structure of Langmuir-Blodgett film containing pyrrole: Molecular mechanics simulations

Seimei Sha Shiratori, Takesi Nishikawa, Kohei Yokoi

研究成果: Article

7 引用 (Scopus)


We studied, by atomic force microscopy (AFM), the changes in the molecular arrangement of arachidic acid (C20) Langmuir-Blodgett (LB) film with increasing quantity of pyrrole (Py) molecules which we used as spacer molecules for C20 molecules in the LB film. When the concentration of Py molecules in the C20 LB film was increased from 0% to 150%, the crystal structure of the LB film changed as follows: oblique lattice→hexagonal lattice→square lattice. These observations agreed qualitatively with the results of computer simulation based on molecular mechanics. Precise control of the crystal structure of LB film by adjusting the number of spacer molecules such as Py in the LB film is possible.

ジャーナルJapanese Journal of Applied Physics, Part 2: Letters
発行部数11 PART A
出版物ステータスPublished - 1996 11 1


ASJC Scopus subject areas

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