Random telegraph signals by alkanethiol-protected Au nanoparticles in chemically assembled single-electron transistors

Shinya Kano; Yasuo Azuma; Daisuke Tanaka; Masanori Sakamoto; Toshiharu Teranishi; Luke W. Smith; Charles G. Smith; Yutaka Majima

doi:10.1063/1.4847955

Random telegraph signals by alkanethiol-protected Au nanoparticles in chemically assembled single-electron transistors

Shinya Kano, Yasuo Azuma, Daisuke Tanaka, Masanori Sakamoto, Toshiharu Teranishi, Luke W. Smith, Charles G. Smith, Yutaka Majima

Department of Physics

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We have studied random telegraph signals (RTSs) in a chemically assembled single-electron transistor (SET) at temperatures as low as 300 mK. The RTSs in the chemically assembled SET were investigated by measuring the source-drain current, using a histogram of the RTS dwell time, and calculating the power spectrum density of the drain current-time characteristics. It was found that the dwell time of the RTS was dependent on the drain voltage of the SET, but was independent of the gate voltage. Considering the spatial structure of the chemically assembled SET, the origin of the RTS is attributed to the trapped charges on an alkanethiol-protected Au nanoparticle positioned near the SET. These results are important as they will help to realize stable chemically assembled SETs in practical applications.

Original language	English
Article number	223717
Journal	Journal of Applied Physics
Volume	114
Issue number	22
DOIs	https://doi.org/10.1063/1.4847955
Publication status	Published - 2013 Dec 14

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1063/1.4847955

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title = "Random telegraph signals by alkanethiol-protected Au nanoparticles in chemically assembled single-electron transistors",

abstract = "We have studied random telegraph signals (RTSs) in a chemically assembled single-electron transistor (SET) at temperatures as low as 300 mK. The RTSs in the chemically assembled SET were investigated by measuring the source-drain current, using a histogram of the RTS dwell time, and calculating the power spectrum density of the drain current-time characteristics. It was found that the dwell time of the RTS was dependent on the drain voltage of the SET, but was independent of the gate voltage. Considering the spatial structure of the chemically assembled SET, the origin of the RTS is attributed to the trapped charges on an alkanethiol-protected Au nanoparticle positioned near the SET. These results are important as they will help to realize stable chemically assembled SETs in practical applications.",

author = "Shinya Kano and Yasuo Azuma and Daisuke Tanaka and Masanori Sakamoto and Toshiharu Teranishi and Smith, {Luke W.} and Smith, {Charles G.} and Yutaka Majima",

note = "Funding Information: This study was partially supported by a Grant-in-Aid for Scientific Research on Innovative Areas (No. 20108011, π-Space) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT); MEXT Elements Strategy Initiative to Form Core Research Center; by a Grant-in-Aid for Scientific Research (A) (No. 23245028) from MEXT (T.T.); by a Grant-in-Aid for Japan Society for the Promotion of Science (JSPS) Fellows (No. 11J08966, S. K.); a research grant from the Murata Science Foundation (Y.A.); by the Collaborative Research Project of Materials and Structures Laboratory, Tokyo Institute of Technology; by the Collaborative Research Program of Institute for Chemical Research, Kyoto University (Grant No. 2012-63); the BK21 plus Program through the Ministry of Education, Science and Technology of Korea; and by support from the EPSRC.",

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AU - Kano, Shinya

AU - Azuma, Yasuo

AU - Tanaka, Daisuke

AU - Sakamoto, Masanori

AU - Teranishi, Toshiharu

AU - Smith, Luke W.

AU - Smith, Charles G.

AU - Majima, Yutaka

N1 - Funding Information: This study was partially supported by a Grant-in-Aid for Scientific Research on Innovative Areas (No. 20108011, π-Space) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT); MEXT Elements Strategy Initiative to Form Core Research Center; by a Grant-in-Aid for Scientific Research (A) (No. 23245028) from MEXT (T.T.); by a Grant-in-Aid for Japan Society for the Promotion of Science (JSPS) Fellows (No. 11J08966, S. K.); a research grant from the Murata Science Foundation (Y.A.); by the Collaborative Research Project of Materials and Structures Laboratory, Tokyo Institute of Technology; by the Collaborative Research Program of Institute for Chemical Research, Kyoto University (Grant No. 2012-63); the BK21 plus Program through the Ministry of Education, Science and Technology of Korea; and by support from the EPSRC.

PY - 2013/12/14

Y1 - 2013/12/14

N2 - We have studied random telegraph signals (RTSs) in a chemically assembled single-electron transistor (SET) at temperatures as low as 300 mK. The RTSs in the chemically assembled SET were investigated by measuring the source-drain current, using a histogram of the RTS dwell time, and calculating the power spectrum density of the drain current-time characteristics. It was found that the dwell time of the RTS was dependent on the drain voltage of the SET, but was independent of the gate voltage. Considering the spatial structure of the chemically assembled SET, the origin of the RTS is attributed to the trapped charges on an alkanethiol-protected Au nanoparticle positioned near the SET. These results are important as they will help to realize stable chemically assembled SETs in practical applications.

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Random telegraph signals by alkanethiol-protected Au nanoparticles in chemically assembled single-electron transistors

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