Molecular Imaging of Conductive Polymers

In view of the recent developments of the polymer-based electronic devices, the precise control of the molecular ordering in the polymer film is of crucial importance. Here, to understand the formation mechanism of the ordered molecular arrays, the physical and chemical behaviors of the many polymer systems are observed at a molecular resolution by using scanning tunneling microscopy.

1. Conductive Polymers Adsorbed on a Solid Surface

a. Molecular Motion in P3HT Monolayers on the Graphite Surface

Relaxation

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D. Takajo, H. Katsuno, K. Sudoh; ACS Macro Lett. 12, 2, 274-280 (2023).https://pubs.acs.org/doi/full/10.1021/acsmacrolett.2c00725

Fluctuation in Equilibrium

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D. Takajo, H. Katsuno, K. Sudoh; ACS Macro Lett. 12, 2, 274-280 (2023).https://pubs.acs.org/doi/full/10.1021/acsmacrolett.2c00725

Kinetic Monte Carlo Simulation

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D. Takajo, H. Katsuno, K. Sudoh; ACS Macro Lett. 12, 2, 274-280 (2023).https://pubs.acs.org/doi/full/10.1021/acsmacrolett.2c00725

b. Moire Patterns between the Lattice Points of the P3HT Monolayer and Graphite

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c. Chain Polymerization in Diacetylene Monolayers on the Graphite Surface

Polymorphic Structures

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D. Takajo, A. Inaba, K. Sudoh; Suf. Sci. 620, 38 (2014). https://www.sciencedirect.com/science/article/pii/S0039602813003099

Optical Irradiation

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D. Takajo, A. Inaba, K. Sudoh; Langmuir, 30 (10), 2738-2744 (2014). https://pubs.acs.org/doi/abs/10.1021/la4049314
D. Takajo, K. Sudoh; Langmuir, 35 (6), 2123-2128 (2019). https://pubs.acs.org/doi/abs/10.1021/acs.langmuir.8b03737

Heating

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D. Takajo, K. Sudoh; Appl. Sci. 8, 503 (2018). http://www.mdpi.com/2076-3417/8/4/503

2. Conductive Polymers Adsorbed on a Water Surface

Rubber Elasticity

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Matsuo, Suzuki, Takajo, Nippon Gomu Kyokaishi, 95, 212-218, (2022).J. Soc. Rub. Sci. Tech, Jpn. 95, 212-218 (2022).