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10 March 2020 Efficient light emission from inelastic tunneling junctions (Conference Presentation)
Zhaowei Liu
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Proceedings Volume 11288, Quantum Sensing and Nano Electronics and Photonics XVII; 112880D (2020) https://doi.org/10.1117/12.2544445
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
Efficient light generation from inelastic electron tunneling (IET) using self-assembled edge-to-edge (EE) single-crystalline silver nanoparticles has been demonstrated with an efficiency up to ~2%. Various nanostructures including nanocube, nanobar, and square prism, have been explored, where the emission wavelengths covering from the visible to the near infrared. The excellent performance is attributed to the use of high-quality atomic level plasmonic cavities created within ultra-small gaps (~1.5 nm) as well as of optical nano-antenna formed by the EE nanoparticles. The realization of 2% efficiency based on IET brings on-chip ultrafast optical sources one step closer to reality.
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Zhaowei Liu "Efficient light emission from inelastic tunneling junctions (Conference Presentation)", Proc. SPIE 11288, Quantum Sensing and Nano Electronics and Photonics XVII, 112880D (10 March 2020); https://doi.org/10.1117/12.2544445
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KEYWORDS
Electrons
External quantum efficiency
Internal quantum efficiency
Optical communications
Metals
Modulation
Phonons
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