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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

Waveguide-integrated light-emitting carbon nanotubes.

Svetlana Khasminskaya¹, Feliks Pyatkov, Benjamin S Flavel

¹Institute of Nanotechnology, Karlsruhe Institute of Technology, 76021, Karlsruhe, Germany.

Advanced Materials (Deerfield Beach, Fla.)

|March 20, 2014

Summary

This summary is machine-generated.

We coupled light from electrically driven carbon nanotubes directly into photonic waveguides. This enables wafer-scale, broadband light sources integrated with nanophotonic circuits for on-chip spectral control.

Keywords:

carbon nanotubes photonic waveguides

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Area of Science:

Nanophotonics
Optoelectronics
Materials Science

Background:

Carbon nanotubes offer unique optoelectronic properties.
Integrating light sources with photonic circuits is crucial for advanced optical systems.

Purpose of the Study:

To demonstrate direct coupling of light from electrically driven carbon nanotubes into photonic waveguides.
To realize wafer-scale, broadband light sources integrated with nanophotonic circuits.
To show on-chip control over the spectral properties of the emitted light.

Main Methods:

Fabrication of carbon nanotube light emitters integrated with photonic waveguide architectures.
Demonstration of light coupling from the nanotube emitters into the waveguides.
Utilizing Mach-Zehnder interferometers and grating structures for spectral control.

Main Results:

Successful direct coupling of light from electrically driven carbon nanotubes into photonic waveguides.
Achieved wafer-scale, broadband light sources integrated with nanophotonic circuits.
Demonstrated centimeter-scale light propagation within the circuits.
Showcased on-chip spectral tunability using passive photonic devices.

Conclusions:

Electrically driven carbon nanotubes can serve as efficient on-chip light sources for nanophotonic circuits.
The integrated approach allows for broadband emission and controlled light propagation.
On-chip spectral engineering is feasible, paving the way for tunable photonic devices.