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A comment on Photocatalyst splits water into H and O2 at quantum efficiency near 100%. Parent comment

Re:Photocatalyst splits water into H and O2 at quantum effic... by missurunha on Saturday December 26, 2020 @10:58AM (#25544164)
They only tested in the range from 350 to 380nm [1]. With wave lengths under 370nm the efficiencies are quite high; at 380nm it falls to 33,6%. That could either mean that the catalyst works well with light at small wavelengths or that it only works at this specific range.

[1] https://www.nature.com/articles/s41586-020-2278-9

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Re:Photocatalyst splits water into H and O2 at quantum effic... by jojobas on Saturday December 26, 2020 @06:13PM (#25547224)
It's probably the same as with solar cells, where you need to match portions of the spectrum with appropriately doped silicon.
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