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Carbon nanotube single-electron transistors with single-electron charge storages.

Carbon nanotube single-electron transistors with single-electron charge storages.

Authors :
Kohei Seike
Yasushi Kanai
Yasuhide Ohno
Kenzo Maehashi
Koichi Inoue
Kazuhiko Matsumoto
Source :
Japanese Journal of Applied Physics; Jun2015, Vol. 54 Issue 6S1, p1-1, 1p
Publication Year :
2015

Abstract

Carbon nanotube single-electron transistors (CNTSETs) with single-electron charge storages were fabricated to detect single-electron charges from a CNT channel to a charge storage. A single-electron charge storage is composed of Au floating dots between tunneling and blocking layers of Al<subscript>2</subscript>O<subscript>3</subscript>. Electrons were injected into a Au floating dot by sweeping gate voltage, and the Coulomb peak was shifted owing to the effect of electrons inside the Au floating dot. In addition, a staircase relationship between the charging voltages and the peak positions was observed. The calculation based on this staircase relationship revealed that the single-electron charging into the Au floating dot was obtained. Therefore, our devices are one of the candidates for CNTSET-based single-electron memories, which can be used for digital operating and ultralow-power consumption devices. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00214922
Volume :
54
Issue :
6S1
Database :
Complementary Index
Journal :
Japanese Journal of Applied Physics
Publication Type :
Academic Journal
Accession number :
103112450
Full Text :
https://doi.org/10.7567/JJAP.54.06FF05