Reorganization of the molecular orientation at the organic/substrate interface in spirofluorene thin films

Takeshi Komino, Hiroko Nomura, Masayuki Yahiro, Chihaya Adachi

研究成果: ジャーナルへの寄稿学術誌査読

9 被引用数 (Scopus)

抄録

The thermal annealing treatment of an organic non-crystalline film of spirofluorene causes the randomization of the molecular orientation through molecular migration. However, the magnitude of the randomization depends on the depth in the film. The comparison of variable-angle spectroscopic ellipsometry, thermally stimulated current, and field-effect transistor characteristics measurements revealed that the molecular orientation in the bulk was randomized by annealing but was still partially maintained at the organic/substrate interface. This difference in condensed states between the interface and the bulk originates from a difference in glass transition temperature.

本文言語英語
ページ(範囲)70-75
ページ数6
ジャーナルChemical Physics Letters
563
DOI
出版ステータス出版済み - 3月 20 2013

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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