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A comment on Blue Origin manufactured solar cell prototype from lunar regolith simulants. Parent comment

Re:Blue Origin manufactured solar cell prototype from lunar ... by SECProto on Tuesday February 14, 2023 @03:12PM (#34795288)
> Another big question is how much mass needs to be shipped up from earth to manufacturer solar cells.

If you take the linked page at face value, it explicitly states:

> without special substances brought from Earth.

(I suspect, like most press releases, some important details aren't being provided. Maybe dopants aren't considered "special substances")

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Re:Blue Origin manufactured solar cell prototype from lunar ... by gene-h on Tuesday February 14, 2023 @04:14PM (#34796091)
This study[0] estimated that less than a microgram of dopant is needed per m^2 and that producing 5 MW of solar cells requires 1 gram of phosphorous. [0]https://ascelibrary.org/doi/abs/10.1061/(ASCE)0893-1321(2001...
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