What is it about?

We report a simple one-step maskless fabrication of inverted pyramids on silicon wafers by reactive ion etching. The fabricated surfaces exhibit a distinct milky white colour.

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Why is it important?

The fabricated surface structure comprising nano inverted pyramids s also exhibit excellent specular anti-reflective properties: The total reflectance of the fabricated by our method can be as low as only 0.33% with a silicon nitride coating.

Perspectives

We have black-Si AR surfaces that appear mat black, and now we also have milky white Si surfaces.

Dr Rafael Taboryski
Danmarks Tekniske Universitet

Read the Original

This page is a summary of: One-step Maskless Fabrication and Optical Characterization of Silicon Surfaces with Antireflective Properties and a White Color Appearance, Scientific Reports, October 2016, Nature,
DOI: 10.1038/srep35183.
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