What Are the Size Limitations of Thermoelectric Generators?

[abdo799]

it's a simple question:
is there any limitation to the size of an thermoelectric generator module?
is there any minimum thickness?
thank you in advance

 

[0xDEADBEEF]

Actually it is not a simple question... There are a number of values that scale with size, and at the far ends there are physical constraints like atomic layers or gravity. When you make Peltier elements small they become very hard to manufacture. These guys probably make the smallest Peltier generators out there: http://www.micropelt.com/products/products.php For those the thickness is dominated by the silicon substrate.