Light-Operated Diverse Logic Gates Enabled by Modulating Time-Dependent Fluorescence of Dissipative Self-Assemblies.

Area of Science:

• Supramolecular Chemistry
• Materials Science
• Photonics

Background:

• Light-fueled dissipative self-assembly offers controllable optical signals for information applications.
• Constructing intelligent light-operated logic circuits is challenging due to limited optical inputs/outputs.

Purpose of the Study:

• To develop novel light-fueled dissipative self-assembly systems with variable optical signals.
• To realize diverse logic gates by modulating time-dependent fluorescence variations.

Main Methods:

• Co-assembly of three alkyl trimethylammonium homologs with a merocyanine-based photoinduced amphiphile.
• Modulation of time-dependent fluorescence via light irradiation and thermal relaxation.
• Systematic variation of excitation wavelengths and trimethylammonium types.

Main Results:

• Dissipative self-assemblies exhibited distinct fluorescence control behaviors under light and thermal conditions.
• Opposite monotonicity of time-dependent emission intensity was achieved by altering excitation wavelength.
• Integration of AND, XNOR, and XOR logic functions was demonstrated.

Conclusions:

• The developed systems provide a robust platform for light-operated logic gates.
• This work offers an effective pathway for advancing optical information transmission applications.
• Controlling fluorescence via dissipative self-assembly opens new avenues in photonic devices.