Observation of ambipolar switching in a silver nanoparticle single-electron transistor with multiple molecular floating gates

Makoto Yamamoto, Shuhei Shinohara, Kaoru Tamada, Hisao Ishii, Yutaka Noguchi

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Ambipolar switching behavior was observed in a silver nanoparticle (AgNP)-based single-electron transistor (SET) with tetra-tert-butyl copper phthalocyanine (ttbCuPc) as a molecular floating gate. DepenDing on the wavelength of the incident light, the stability diagram shifted to the negative and positive directions along the gate voltage axis. These results were explained by the photoinduced charging of ttbCuPc molecules in the vicinity of AgNPs. Moreover, multiple device states were induced by the light irradiation at a wavelength of 600 nm, suggesting that multiple ttbCuPc molecules individually worked as a floating gate.

Original languageEnglish
Article number03DC02
JournalJapanese Journal of Applied Physics
Issue number3
Publication statusPublished - Mar 2016


All Science Journal Classification (ASJC) codes

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

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