Control of adsorption/desorption dynamics at the liquid/solid interface towards self-repairing molecular devices

2015 Fiscal Year Final Research Report

• Project/Area Number: 25810048
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry
• Research Institution: Kyoto University
• Principal Investigator: Hirose Takashi 京都大学, 工学(系)研究科(研究院), 助教 (30626867)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 協同的組織化 / 光応答性 / 走査型トンネル顕微鏡 / 固液界面 / ジアリールエテン

Outline of Final Research Achievements

In this study, we investigated the process of the molecular ordering formation at the liquid/solid interface and its photoresponsivility. Photochromic compounds that alter chemical structure upon photoirradiation were used as adsorbate to impart a photoresponsiveness to molecular orderings. The structure and arrangement of molecular ordering formed on a graphite substrate were observed at the single-molecule resolution using scanning tunneling microscopy.
Photochromic compounds bearing alkyl side chains linked via amide group has a unique ordering formation process and whose molecular ordering steeply grows at a critical concentration. By using such sharp concentration dependence of molecular ordering formation, photoresponsive molecular orderings with high photoresponsivility were successfully observed.

Free Research Field

超分子光化学