Making Foraminous Microstructures

Summary

An economical and versatile approach is developed to construct photonic structures using well-established solution-based deposition and post-deposition modification techniques. Without sophisticated and expensive vacuum equipment or control systems, such an approach can achieve elaborate periodic microstructures with high structural precision and uniformity over a large area substrate (e.g., on centimeter scale or larger). The overall procedure is highly efficient and adaptable to automatic fabrication for mass production. In a typical run, for example, a one-pot, one-step procedure was used to generate a rugate filter featuring magnetic components and well-defined mesoscopic porosity. The resonance features of the photonic product can be easily adjusted by modifying the experimental parameters in the deposition process.

Technology Application

This invention is suited for constructing plasmonic materials without the use of complicated and expensive instruments. The photonic materials thus fabricated exhibit an extraordinary ability to control and modulate light. These plasmonic materials can be employed to fabricate products or accomplish tasks stated below:
transparent conductors/magnets, all-absorption photovoltaic electrode materials for solar cell applications, higher-resolution microscopes and better detectors, more efficient light-emitting devices, selective removal of cancer cells, revolutionizing computing through replacement of electronic circuits, catalysts, chemical and biological sensors, biomedical devices and templating materials.

Country/Region

Hong Kong

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