BROWSE

Related Scientist

Researcher

나노 구조 물리 연구단
나노구조물리 연구단
more info

Nanoparticle Linker-Controlled Molecular Wire Devices Based on Double Molecular Monolayers

Cited 0 time in webofscience Cited 0 time in scopus
30 Viewed 5 Downloaded
Title
Nanoparticle Linker-Controlled Molecular Wire Devices Based on Double Molecular Monolayers
Author(s)
Sohyeon Seo; Bui Quoc Viet; Eunhee Hwang; Yunhee Cho; Junghyun Lee; Yoshiyuki Kawazoe; Hyoyoung Lee
Publication Date
2019-07
Journal
SMALL, v.15, no.28, pp.1901183 -
Publisher
WILEY-V C H VERLAG GMBH
Abstract
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, WeinheimHighly conductive molecular wires are an important component for realizing molecular electronic devices and have to be explored in terms of interactions between molecules and electrodes in their molecular junctions. Here, new molecular wire junctions are reported to enhance charge transport through gold nanoparticle (AuNP)-linked double self-assembled monolayers (SAMs) of cobalt (II) bis-terpyridine molecules (e.g., Co(II)(tpyphS)2). Electrical characteristics of the double-SAM devices are explored in terms of the existence of AuNP. The AuNP linker in the Co(II)(tpyphS)2–AuNP–Co(II)(tpyphS)2 junction acts as an electronic contact that is transparent to electrons. The weak temperature dependency of the AuNP-linked molecular junctions strongly indicates sequential tunneling conduction through the highest occupied molecular orbitals (HOMOs) of Co(II)(tpyphS)2 molecules. The electrochemical characteristics of the AuNP–Co(II)(tpyphS)2 SAMs reveal fast electron transfer through molecules linked by AuNP. Density functional theory calculations reveal that the molecular HOMO levels are dominantly affected by the formation of junctions. The intermolecular charge transport, controlled by the AuNP linker, can provide a rational design for molecular connection that achieves a reliable electrical connectivity of molecular electronic components for construction of molecular electronic circuits
URI
https://pr.ibs.re.kr/handle/8788114/6130
ISSN
1613-6810
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
Nanoparticle Linker_Small_Hyoyoung Lee.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse