Probing electronic properties of quantum dots and molecules by nanogap metallic electrodes

K. Hirakawa, M. Jung, A. Umeno, T. Machida, T. Akasaka, S. H. Hong, Y. Igarashi, A. Oiwa, S. Tarucha

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Recent progress in nanofabrication technologies allows us to access to quantum mechanically well-defined electronic systems, such as quantum dots (QDs) and molecules. Such nanojunctions are expected to open a new paradigm in future optoelectronic devices. We have investigated electron transport through single selfassembled InAs QDs and molecules, using metallic leads with nanogaps. InAs QDs exhibited clear shell filling and novel transport phenomena such as Kondo effect. Furthermore, we have observed current-voltage characteristics molecular junctions fabricated by precisely controlled electromigration technique.

Original languageEnglish
Title of host publication2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Pages220-221
Number of pages2
DOIs
StatePublished - 2006
Event2006 IEEE Nanotechnology Materials and Devices Conference, NMDC - Gyeongju, Korea, Republic of
Duration: 22 Oct 200625 Oct 2006

Publication series

Name2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Volume1

Conference

Conference2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Country/TerritoryKorea, Republic of
CityGyeongju
Period22/10/0625/10/06

Keywords

  • Molecular junctions
  • Quantum dots
  • Shell structures
  • Single electron tunneling

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