Photon-Assisted Tunneling in Carbon Nanotube Optical Rectennas: Characterization and Modeling
Source abstract
Abstract
We present optical characterization and modeling of carbon nanotube (CNT) rectennas featuring multi-insulator, metal–insulator–metal tunneling diodes. The diodes use four layers of Al2O3 and ZrO2 dielectrics to obtain strong nonlinearity and highly asymmetric current density at low turn-on voltage. The CNT rectenna devices show energy conversion in the full optical spectrum (404–980 nm). We introduce the theory of photon-assisted tunneling (PAT) to model the optical behavior based on unilluminated diode characteristics. Our model shows agreement between PAT and our experimental results, and fitting suggests a wavelength-dependent optical voltage. We discuss the impact of rectenna parameters and elucidate performance limits to our CNT rectenna device.
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Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Advancements in Semiconductor Devices and Circuit Design · Quantum and electron transport phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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