| Electronics > Projects, Designs, and Technical Stuff |
| Building a Peltier module |
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| Rachie5272:
Hello, I want to build a Peltier module from scratch. I have some ideas I want to test out, and there's no better way than prototyping. Where would I find the raw N and P semiconductor elements to make this from? I don't even know what they're called, or how to search for them. Am I better off salvaging them from a cheap module? |
| ironmonkey:
AFAIK they are two different metal sheets, with no semiconductor involved (kind of a inverse termocouple) Enviado desde mi MotoG3 mediante Tapatalk |
| Rachie5272:
Theoretically this should work, but every explanation of Peltier junctions I've seen says they use semiconductors. Does anyone know why? |
| LukeW:
Lots of materials have some Seebeck coefficient (like a thermocouple) but you need a *high* Seebeck coefficient. Doped bismuth telluride is usually the material of choice. |
| vealmike:
Do you have to use Bismuth metal, or can you use stuff from any WWII wreck? |
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