Unidirectional Real-Time Photoswitching of Diarylethene Molecular Monolayer Junctions with Multilayer Graphene Electrodes

We fabricate and characterize vertical molecular junctions consisting of self-assembled monolayers of diarylethene (DAE) contacted by a multilayer graphene (MLG) electrode on the top and gold on the bottom. The DAE molecular junctions show two stable electrical states, a closed state (high conductan...

Full description

Saved in:
Bibliographic Details
Published in:ACS applied materials & interfaces 2019-03, Vol.11 (12), p.11645-11653
Main Authors: Koo, Jeongmin, Jang, Yeonsik, Martin, León, Kim, Dongku, Jeong, Hyunhak, Kang, Keehoon, Lee, Woocheol, Kim, Junwoo, Hwang, Wang-Taek, Xiang, Dong, Scheer, Elke, Kabdulov, Mikhail, Huhn, Thomas, Pauly, Fabian, Lee, Takhee
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We fabricate and characterize vertical molecular junctions consisting of self-assembled monolayers of diarylethene (DAE) contacted by a multilayer graphene (MLG) electrode on the top and gold on the bottom. The DAE molecular junctions show two stable electrical states, a closed state (high conductance) or an open state (low conductance), which are created upon illumination with UV or visible light, respectively. For the Au-DAE-MLG junction structure, we observe that the current levels between the two conductance states are separated by 2 orders of magnitude. However, in a real-time measurement, we observe only unidirectional switching behavior from the open to the closed state.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.8b19372