Silver nanoprisms grown into structural colors by high power LEDs

2022-04-09

[public] 18.8K views, 10.3K likes, dislikes audio only

How to chemically synthesize silver nanoparticles, then grow them into triangular nanoprisms with light from a variety of LEDs. Each color LED creates a different size nanoprism, which has its own characteristic color.

CMDITR video: https://www.youtube.com/watch?v=agD5jfXua-o

Multispectral LED driver on Github: https://github.com/benkrasnow/MultiSpectLED

Chemicals sourced from Amazon/eBay

LR-1 spectrometer: https://www.aseq-instruments.com/LR1.html

Micropipette set: https://www.amazon.com/gp/product/B06XJY82N3/ https://www.amazon.com/gp/product/B01KO7MCCC/

20ml glass vials with PTFE lined cap (do not use metal-lined): Environmental Express APC1675P Already gone from Amazon

pH pen (this cost more than I remember, but it works really well, and has lasted many years. Cheaper pH pens are often pretty bad) https://www.amazon.com/gp/product/B01ESYG6B0/

Comparison of CD, DVD, Blu-ray discs with electron microscope:

https://twitter.com/BenKrasnow/status/615327472909840385

Great way to find related papers:

https://www.connectedpapers.com/

Research sources:

https://www.youtube.com/watch?v=agD5jfXua-o

https://sci-hub.se/https://doi.org/10.1002/anie.200604637

https://sci-hub.se/10.1038/nature01937

https://sci-hub.se/10.1126/science.1066541

https://sci-hub.se/10.1002/smll.200801480

https://sci-hub.se/10.1039/b302943c

https://opg.optica.org/oe/fulltext.cfm?uri=oe-20-28-29923&id=247745