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A comment on US startup begins producing 40%-efficient thermophotovoltaic cells. Parent comment

Re:US startup begins producing 40%-efficient thermophotovolt... by 20after4 on Thursday October 05, 2023 @04:13AM (#37776053)
Yes they exist, though I don't think they are Peltier devices: https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_ge...
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Re:US startup begins producing 40%-efficient thermophotovolt... by brucethemoose2 on Thursday October 05, 2023 @04:26AM (#37776129)
If you want a "zero moving part reactor," what you are really looking for is: https://en.m.wikipedia.org/wiki/Fission_fragment_reactor

And its spaceflight cousin: https://www.projectrho.com/public_html/rocket/enginelist2.ph...

Though they are not peltier devices either.

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