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Updated: May 22, 2026
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Graphene-Assisted Quasi-van der Waals Epitaxy of AlN Film on Nano-Patterned Sapphire Substrate for Ultraviolet Light Emitting Diodes
Published on: June 25, 2020
Luminescence of graphene
Takeshi Koyama1, Hideo Kishida1
1Department of Applied Physics, Nagoya University, Chikusa, Nagoya 464-8603, Japan.
Summary
Graphene
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Graphene exhibits unique luminescence properties.
- Its electronic band structure influences light emission.
- Controlling graphene's luminescence is key for optoelectronic applications.
Purpose of the Study:
- To review the luminescence of graphene.
- To explore methods for controlling graphene's spectral and temporal luminescence.
- To discuss future research directions in graphene luminescence.
Main Methods:
- Exploiting graphene's steep energy dispersion for high electron temperatures.
- Utilizing electron and hole doping to tune Fermi energy.
- Integrating graphene with photonic structures for spectral control via interference.
- Investigating many-body electron-hole interactions.
Main Results:
- Graphene luminescence spans visible and ultraviolet regions due to high electron temperatures.
- Doping allows precise control over the luminescence spectrum.
- Integration with photonic crystals enables interference-based spectral tuning.
- Fermi edge singularity observed due to strong Coulomb interactions.
Conclusions:
- Graphene's luminescence is highly controllable through its unique electronic and physical properties.
- Various techniques allow for spectral and temporal manipulation of graphene emission.
- Further research can unlock advanced applications in optoelectronics and photonics.
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