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Some REAL science for the channel! Growing semiconducting PbSe crystals (MROP 2020 talk)

2020-10-29

[public] 27.9K views, 800 likes, dislikes audio only

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I've posted a few videos about awesome equipment I get to use in the lab (and plan to post many more because big fancy machines are awesome) but I haven't actually explained any of my research on the channel! Well that ends today, with a real honest-to-goodness conference talk I gave this January. In our lab, we grow "rocksalt" PbSe crystals (with a structure that looks like a 3D checkerboard) on top of "zincblende" InAs crystals (with a structure that looks like a bunch of methanes stuck together).

So bust out your memory of high school chemistry and learn how bonding, charges, and crystalline symmetry all matter to actual scientific research going on right now at UCSB and Stanford!

Big thanks to MROP, the Materials Research Outreach Program, for having me as a speaker, and also big thanks to Ram Seshadri, Director of the Materials Research Laboratory, for giving me the OK to share this recording!

http://www.mrl.ucsb.edu/materials-research-outreach-program

If anybody's ludicrously curious, here's the paper this talk was based on:

doi.org/10.1103/PhysRevMaterials.4.033402

Check out the other social media for updates and ramblings:

https://www.facebook.com/AlphaPhoenixChannel/

https://twitter.com/Alpha__Phoenix

#Materials #Physics #Crystals

Music in this video:

I Dunno by grapes is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/3.0/)

http://ccmixter.org/files/grapes/16626


Intro
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Welcome
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Wetting the substrate
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The electromagnetic spectrum
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Comparing the 3 5 4 6 materials
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Comparing the 4 6 materials
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Limitations
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NVD
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Choosing a substrate
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Substrates
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Cellulite
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Crystal growth
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Cube orientation
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Surface observation
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Electromagnetic spectrum
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Structural distortion
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Summary
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AlphaPhoenix I'm Brian Haidet - PhD in Materials Science, but I'd also describe myself as artist, maker, and Hawaiian shirt enthusiast. On this channel, You'll find my side projects and favorite physics demos - I hope you enjoy!
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