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Title: Molecular floating-gate single-electron transistor
Authors: Yamamoto, Makoto
Azuma, Yasuo
Sakamoto, Masanori  kyouindb  KAKEN_id  orcid (unconfirmed)
Teranishi, Toshiharu  kyouindb  KAKEN_id  orcid (unconfirmed)
Ishii, Hisao
Majima, Yutaka
Noguchi, Yutaka
Author's alias: 坂本, 雅典
寺西, 利治
Keywords: Electronic devices
Molecular electronics
Issue Date: 8-May-2017
Publisher: Springer Nature
Journal title: Scientific Reports
Volume: 7
Thesis number: 1589
Abstract: We investigated reversible switching behaviors of a molecular floating-gate single-electron transistor (MFG-SET). The device consists of a gold nanoparticle-based SET and a few tetra-tert-butyl copper phthalocyanine (ttbCuPc) molecules; each nanoparticle (NP) functions as a Coulomb island. The ttbCuPc molecules function as photoreactive floating gates, which reversibly change the potential of the Coulomb island depending on the charge states induced in the ttbCuPc molecules by light irradiation or by externally applied voltages. We found that single-electron charging of ttbCuPc leads to a potential shift in the Coulomb island by more than half of its charging energy. The first induced device state was sufficiently stable; the retention time was more than a few hours without application of an external voltage. Moreover, the device exhibited an additional state when irradiated with 700 nm light, corresponding to doubly charged ttbCuPc. The life time of this additional state was several seconds, which is much shorter than that of the first induced state. These results clearly demonstrate an alternative method utilizing the unique functionality of the single molecule in nanoelectronics devices, and the potential application of MFG-SETs for investigating molecular charging phenomena.
Rights: © The Author(s) 2017.
This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
DOI(Published Version): 10.1038/s41598-017-01578-7
PubMed ID: 28484243
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