Investigation of energy level alignment and charge transport properties of molecular junctions

2014 Fiscal Year Final Research Report

• Project/Area Number: 24510148
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: Meiji University (2014); Chiba University (2012-2013)
• Principal Investigator: NOGUCHI Yutaka 明治大学, 理工学部, 准教授 (20399538)
• Co-Investigator(Renkei-kenkyūsha): ISHII Hisao 千葉大学, 先進科学センター, 教授 (60232237) ; NAKAYAMA Yasuo 東京理科大学, 理工学部工業化学科, 講師 (30451751)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 分子接合 / 電荷輸送特性 / エネルギー準位接続

Outline of Final Research Achievements

We have investigated the charge transport mechanisms of metal/organic monolayer/metal structures based on the observation of energy level alignment. The followings have been found; (i)contribution of the localized electronic state at the interface originating from the metal/molecule bonding, (ii)contribution of asymmetry factor of the molecular junction, (iii)contribution of different states depending on the polarity of the applied voltage. These contributions have not been considered sufficiently. Our results provide deeper understandings of the charge transport mechanisms of the molecular junctions.

Free Research Field

分子エレクトロニクス