Work

Structural Reconstruction of Optically Invisible State in a Single Molecule via Scanning Tunneling Microscope

Year: 2021

Type: article

Abstract: Molecular dark states, participating in various energy- and electron-transfer processes, are typically beyond direct optical-spectroscopic measurements because of the forbidden transition dictated by the selection rule. In this work, we demonstrate a direct profile of the dark-state transition density of a single molecule on the subnanometer scale by using a scanning tunneling microscope. Our method allows one to resolve the four-lobe configuration in a 1 nm region for the example molecule. The current proposal will bring about a new methodology to study the single-molecule properties in electro-optical devices and light-assisted biological processes.

Source: The Journal of Physical Chemistry Letters

DOI: 10.1021/acs.jpclett.1c02808

Authors: Guohui Dong, Zhubin Hu, Xiang Sun, Hui Dong

Institutions: Graduate School of China Academy of Engineering Physics, Sichuan Normal University, New York University Shanghai, New York University

Language: English

Topic: Molecular Junctions and Nanostructures

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, Ministry of Science and Technology of the People's Republic of China

Awards: G1780982922, G311239403, G611406773, G7679674911, G8341879329