2/23/16 All-Vinyl Show feat. Nick Davy & Melda Sezen on Solar Cells, Wearable Circuits & Smart Glass (+ Making Vinyl)

From http://cdn.phys.org/newman/gfx/news/hires/2013/milliron_image.jpg
Featured image above is from an article from 2013 where a group at Berkeley is working to make windows even smarter, in a different way.

Nick and Melda @ WPRBIn this special show for WPRB’s all-vinyl week, Brian covers the tunes and Stevie speaks to our guests, Princeton graduate researchers Nick Davy and Melda Sezen. It was beautiful chaos in the studio.

Nick and Melda work on Smart Windows, under Professor Lynn Loo in Chemical and Biological Engineering. “Smart Windows” refers to glass that can change colors (darken) when a current is applied. This happens due to the electrochromic (electro=electrical responding, chromic=color) material polyaniline. Polyaniline is magical. It dissolves in water, and is just green when no current is applied (see image), but when connected to an energy source, like a battery or a solar cell, it can be tuned to be varying shades of blue, and even transparent. Nick and Melda’s collaboration

Screen Shot 2016-02-24 at 10.28.15 AM
Poly-aniline.

works to improve this technology by introducing organic* solar cells as an extra varnish on the windows, producing both the energy needed to change the color of the glass and hopefully some excess to power your home, etc.

So, in the show we in to the nitty gritty of how smart glass works, and how Nick and MeldaBrian+vinyl.jpg are fabricating and improving the technology. We then dive in to other applications of organic solar cells and polyaniline, for example wearable technology.

If you’re looking for something about smart windows that’s little higher level, take a look here.

At the very end of the show, Brian jumps on the mic to give us a little history of vinyl, including cylinder vinyl, and how LPs are made!

*In chemistry speak, “organic” = carbon based. In this case, think “plastic.”


 

Screen Shot 2016-02-24 at 10.25.09 AM

 

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