Fabrication and photoelectric conversion of densely packed C60-ethylenediamine adduct microparticle films-modified electrode covered with electrochemically deposited polythiophene thin-films

Shoto Banya; Yu Kumagawa; Daisuke Izumoto; Moyu Tanaka; Kengo Kanbe; Takeo Oku; Tsuyoshi Akiyama

doi:10.1039/d3ra05150a

Fabrication and photoelectric conversion of densely packed C₆₀-ethylenediamine adduct microparticle films-modified electrode covered with electrochemically deposited polythiophene thin-films

RSC Adv. 2023 Oct 25;13(44):31244-31251. doi: 10.1039/d3ra05150a. eCollection 2023 Oct 18.

Authors

Shoto Banya¹, Yu Kumagawa¹, Daisuke Izumoto¹, Moyu Tanaka¹, Kengo Kanbe², Takeo Oku³, Tsuyoshi Akiyama³

Affiliations

¹ Division of Materials Science, Graduate School of Engineering, The University of Shiga Prefecture 2500, Hassaka Hikone Shiga 522-8533 Japan.
² Division of Advanced Engineering Science, Graduate School of Engineering, The University of Shiga Prefecture 2500, Hassaka Hikone Shiga 522-8533 Japan.
³ Department of Materials Chemistry, School of Engineering, The University of Shiga Prefecture Hikone Shiga 522-8533 Japan akiyama.t@mat.usp.ac.jp.

Abstract

Polythiophene-modified densely packed C₆₀-ethylenediamine adduct microparticle films were prepared using a combination of liquid-liquid interfacial precipitation of the adduct microparticles and electrochemical polymerization of 2,2'-bithiophene. The amount of polythiophene was varied as a function of scanning cycles of the applied potential during electrochemical polymerization. Fluorescence-emission properties of these composite films suggested the role of C₆₀-ethylenediamine adduct microparticle film as a photosensitizer in addition to an electron acceptor for polythiophene. Furthermore, cathodic photocurrents were generated via excitation of C₆₀-ethylenediamine adduct microparticle film and polythiophenes using the half-photocell properties of the electrode modified with composite film in the presence of methylviologen.