Development of tunnel transistor with molecular superlattice

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13819
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Device related chemistry
• Research Institution: National Institute for Materials Science
• Principal Investigator: Wakayama Yutaka 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, グループリーダー (00354332)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: トンネル現象 / 分子自己組織化膜 / 縦型トンネルトランジスタ

Outline of Final Research Achievements

A main purpose of this study is to develop a vertical tunnel transistor. Key component of this device is binary molecular monolayers, which were incorporated in a double-tunneling junction to work as quantum dots for electron tunneling. An advantage of organic molecules is that energy levels of molecules can be tuned precisely by designing molecular structures. In fact, we observed multi-step tunneling in accordance with the energy levels of respective molecules. Furthermore, electron-tunneling can be modulated under side-gate bias voltages. Thus, vertically-aligned tunneling transistor with multi-value switching operation were successfully developed by using organic molecules.

Free Research Field

有機半導体工学