Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jun 3, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Graphene based quantum dots.

H G Zhang¹, H Hu, Y Pan

¹Institute of Physics, Chinese Academy of Sciences, Beijing, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal

|March 15, 2011

Summary

This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

The immunosuppressive role of VSIG4 in colorectal cancer and its interaction with the tumor microenvironment.

Discover oncology·2025

Same author

[A multicenter, prospective, phaseⅡ, single-arm study on the treatment of newly diagnosed multiple myeloma with domestic bortezomib in combination with lenalidomide and dexamethasone].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2024

Same author

[To determine the value of iMAX, a new electrodiagnostic method, and its application in the evaluation of peripheral motor nerve excitability].

Zhonghua yi xue za zhi·2024

Same author

[Research progress on the early recurrence of acute ischemic stroke].

Zhonghua nei ke za zhi·2022

Same author

Constraints on Lightly Ionizing Particles from CDMSlite.

Physical review letters·2021

Same author

Light Dark Matter Search with a High-Resolution Athermal Phonon Detector Operated above Ground.

Physical review letters·2021

Scientists discovered a precise quantum dot array on graphene using scanning tunneling spectroscopy. These electronic states, resembling molecular precision, are influenced by graphene

Area of Science:

Condensed Matter Physics
Materials Science
Surface Science

Background:

Graphene exhibits unique electronic properties when supported on metal substrates.
Understanding localized electronic states is crucial for nanoscale device applications.
Ruthenium substrates can influence graphene's electronic structure.

Purpose of the Study:

To identify and characterize laterally localized electronic states on a single layer of graphene on ruthenium.
To investigate the nature and formation of these states using spectroscopy.
To correlate electronic properties with the substrate's influence on graphene.

Main Methods:

Low temperature scanning tunneling spectroscopy (STS) was employed.
Differential conductance (dI/dV) spectra were measured.

More Related Videos

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Production and Targeting of Monovalent Quantum Dots

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

Related Experiment Videos

Last Updated: Jun 3, 2026

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots

Published on: November 1, 2013

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Production and Targeting of Monovalent Quantum Dots

Production and Targeting of Monovalent Quantum Dots

Published on: October 23, 2014

Quantum well resonances (QWRs) were analyzed.

A layer height dependent potential-well model was utilized.

Main Results:

Laterally localized electronic states, forming a regular quantum dot array, were identified.
Individual states are separated by 3 nm and contain approximately 90 carbon atoms.
Quantum well resonances (QWRs) were observed, linked to graphene corrugation.
Strongest and lowest energy QWRs occurred on decoupled 'hill' regions.

Conclusions:

A highly regular quantum dot array with molecular precision exists on graphene/ruthenium.
The electronic states are governed by quantum well resonances influenced by graphene's topography.
The decoupling of graphene from the ruthenium surface in specific regions significantly impacts electronic states.