Couldn’t we have a lead box lined with these radiation to electricity converters with a small amount of radioactive material in the center, and have an energy generating device that would last for thousands or even millions of years? Imagine putting the sun in a box lined with solar cells, but on a much smaller scale.

Is there a reason this wouldn’t work?

  • qjkxbmwvz@lemmy.sdf.org
    link
    fedilink
    arrow-up
    35
    ·
    1 year ago

    Lot of comments about RTGs, but I don’t think that’s what OP is asking. RTGs convert heat to electricity, same as a conventional power plants — they just do it in a solid state way instead of steam. In RTGs it doesn’t matter where the heat comes from; they are not really analogous to solar cells, as the title asks.

    In fact, there are consumer products that use the same technology — you can buy a little electric fan that sits on top of a wood stove and, once up to temp, will start spinning. The electricity is generated by the thermal gradient using heat from the stove, essentially the same as an RTG.