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Current timer switch in a GaAs-based nanowire coupled with polyoxometalate nanoparticle and conductive AFM tip
| Title: | Current timer switch in a GaAs-based nanowire coupled with polyoxometalate nanoparticle and conductive AFM tip |
| Authors: | Sasaki, Kentaro Browse this author | | Saito, Shunsuke Browse this author | | Kasai, Seiya Browse this author →KAKEN DB |
| Keywords: | molecular charge dynamics | | polyoxometalate | | molecular electronics |
| Issue Date: | 1-Oct-2020 |
| Publisher: | IOP Publishing |
| Journal Title: | Japanese Journal of Applied Physics (JJAP) |
| Volume: | 59 |
| Issue: | 10 |
| Start Page: | 105005 |
| Publisher DOI: | 10.35848/1347-4065/abb9c9 |
| Abstract: | We demonstrate a current timer switch function in a GaAs-based nanowire electrostatically coupled with a polyoxometalate nanoparticle (POM NP) and a conductive atomic force microscopy (AFM) tip. The nanowire current associated with the charge state of the POM NP on the nanowire surface abruptly changed after several ten seconds from biasing the conductive tip. The current switch timing changed depending on the tip voltage. The timer switch function appeared when the tip approached the POM NP where the AFM phase image showed phase lag at high atmospheric humidity condition. We discuss the timer mechanism in terms of the configuration of the electromechanical potential of the cantilever and dynamic potential modulation by mobile ions and polarized molecules in the water-absorbed POM NP surface. |
| Rights: | © 2020 The Japan Society of Applied Physics |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/82829 |
| Appears in Collections: | 量子集積エレクトロニクス研究センター (Research Center for Integrated Quantum Electronics) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 葛西 誠也
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