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Ambient Method for the Production of an Ionically Gated Carbon Nanotube Common Cathode in Tandem Organic Solar Cells

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Published on: November 5, 2014

Single wall carbon nanotube based optical rectenna.

Lina Tizani^1,2, Yawar Abbas³, Ahmed Mahdy Yassin^1,2

¹Department of Electrical Engineering and Computer Science, Khalifa University Abu Dhabi 127788 UAE.

|April 28, 2022

Summary

This summary is machine-generated.

We developed an optical rectenna using carbon nanotubes (CNTs) as nano-antennas. This device shows light sensitivity and rectification, paving the way for optical communication and energy harvesting.

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Area of Science:

Nanotechnology
Materials Science
Optoelectronics

Background:

Optical rectennas are crucial for converting light into electrical signals.
Carbon nanotubes (CNTs) possess unique electrical and optical properties suitable for nanoscale applications.

Purpose of the Study:

To engineer and investigate an optical rectenna based on single-wall carbon nanotubes (SWCNTs).
To demonstrate the rectification behavior and light sensitivity of CNT-based rectennas.

Main Methods:

Fabrication of a rectifying diode at the interface of an atomic force microscope (AFM) metal probe and an SWCNT.
Electrical and optical characterization using conductive AFM nano-probe on different substrates (CuO/Cu and SiO2/Si).
Analysis including energy band diagrams, materials characterization, and finite element simulations.

Main Results:

Explicit rectification behavior observed in SWCNT-based devices.
Demonstrated sensitivity of the CNT-based rectenna to light irradiation.
Enhanced performance observed with a CuO/Cu substrate compared to SiO2/Si.

Conclusions:

SWCNTs can function as effective nano-antennas in optical rectenna systems.
The engineered rectenna shows potential for optical communication and energy harvesting.
The substrate material significantly influences the rectenna's performance.