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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Plasmonics in Nanocomposite Materials
Presentation Title Fin p-n Heterojunctions for High Brightness Light Emitting Diodes and Lasers at Sub-micron Scale
Author(s) Babak Nikoobakht, Robin Hansen, Yuqin Zong, Amit Agrawal, Michael Shur, Jerry Tersoff
On-Site Speaker (Planned) Babak Nikoobakht
Abstract Scope “Efficiency droop” is a decline in brightness of light emitting diodes (LEDs) as electrical current density is raised. This phenomenon has limited the performance of all commercial LEDs. It has also capped the output power of sub-micron LEDs and lasers to nanowatts. In this presentation, I will discuss a fin shape heterojunction architecture that eliminates the droop effect and results in high brightness point sources with a microwatt power range exceeding the output power of any previous electrically-driven sub-micron LED or laser pixel by 100 to 1000 times. Results will be presented on the impact of fin shape on electron-hole recombination and how it impacts the rate of non-radiative Auger recombination at extreme high current densities. Results suggest further refinement of this design is expected to enable a new generation of high brightness LED and laser pixels for macroscale and miniaturized applications.
Proceedings Inclusion? Planned:
Keywords Electronic Materials, Nanotechnology, Characterization


Anisotropic and Shape-selective Plasmonic Nanomaterials: Structure-property Relationships
Electron Transfer and Catalysis in Plasmonic Nanocomposite Systems
Emerging Anisotropic 2D Layered Materials for Plasmonics and Polaritonics
Engineered Plasmonic Nanoparticle Based Detection: Advanced Sensitivity and Selectivity
Fin p-n Heterojunctions for High Brightness Light Emitting Diodes and Lasers at Sub-micron Scale
Gold and Au/Ni and Other Plasmonic Nanoparticles: Using Theory to Understand Metal Recovery and Optical Properties
Nanophotonics for Neural Engineering
Nanoplasmonics and Its Applications in Nanomedicine
Plasmonic Compound Nanohole Arrays
Spectral Enhancement of Dye Molecules Adsorbed on Titania Prepared on Gold Nanoparticles
Understanding Photocarrier and Gas Dynamics to Rationally Design Nano-heterostructured Photocatalysts for CO2 Conversion

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