Development of a method for measuring theroelectric properties of one-dimensional nanostructures

2015 Fiscal Year Final Research Report

• Project/Area Number: 26600063
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nano/Microsystems
• Research Institution: Osaka University
• Principal Investigator: Tsutsui Makusu 大阪大学, 産業科学研究所, 准教授 (50546596)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: マイクロナノセンサー

Outline of Final Research Achievements

In this research, a microheater/thermometer-embedded mechanically-controllable break junction was developed for measuring thermoelectric properties of size-configurable bismuth nanowires. A free-standing bismuth nanowire was fabricated by coating it with a platinum layer for protecting from the oxidation upon dry-etching of a polyimide layer. The thus obtained bismuth wire was stretched and narrowed gradually from sub-micrometer to single-atom scales mechanically via the MCBJ mechanism. Concurrently measured wire conductance showed step-wise decrease in the conductance reflecting the atomic rearrangements taken place during the mechanical deformations.

Free Research Field

ナノテクノロジー