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Deterministic quantum light emitters in DNA origami-engineered molecule-MoS₂ hybrids
Zhijie Li1, Shen Zhao2, Iuliia Melchakova3
1Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-Universität München, Geschwister-Scholl-Platz 1, 80539, Munich, Germany.
Light, Science & Applications
|March 9, 2026
Summary
Researchers precisely placed organic molecules on 2D materials using DNA origami, creating quantum emitters in molybdenum disulfide (MoS2) for advanced 2D devices.
Area of Science:
- Materials Science
- Nanotechnology
- Quantum Technology
Background:
- Atomically-thin transition metal dichalcogenides (TMDs) functionalization with organic molecules is key for nanoscale optoelectronic devices.
- Precise spatial control of molecules on 2D materials is a major challenge for current methods.
Purpose of the Study:
- To develop a method for precise spatial arrangement of molecules on 2D materials.
- To create controlled quantum emitters in TMDs for quantum technologies.
Main Methods:
- Utilized a DNA origami placement technique for single-molecule level arrangement of thiol molecules.
- Integrated molybdenum disulfide (MoS2) monolayers with thiol-origami patterns on a chip surface.
Main Results:
- Achieved high assembly yields of thiol molecules with precise spatial control.
- Successfully created quantum-emitting sites through thiol-induced localized excitons in MoS2.
- Demonstrated integration of MoS2 monolayers with designed molecular patterns.
Conclusions:
- The DNA origami technique overcomes limitations of traditional deposition methods for molecule placement.
- This approach enables chemical control over quantum emitters in atomically-thin semiconductors.
- Paves the way for designing and producing ultracompact 2D devices for quantum technologies.
