How and Why Peltier Tiles work?

[ZiHao]

The thing I knew about Peltier Tiles is that when there is a temperature difference, it generates electricity, and the bigger the tempreature difference, the greater the power you will get. But why it works?
Basically, I have partnered with three other friends to participate in a science contest and I am planning to apply the Peltier Tiles to things you use everyday, chair, desk,for instance. Second question,is the electricity generated enough to power a LED bulb. or to charge a phone. https://www.lazada.com.my/products/1pc-white-60w-12v-heatsink-thermoelectric-cooler-peltier-cooling-plate-i104452780-s105660253.html?spm=a2o4k.searchlist.list.6.35007323JsVGdk&search=1
Attached a url with an example of peltier tile use to power the bulb, for example.
Thanks :)

 

[anorlunda]

Science projects are fun.

You should do your own research on why it works. Here is a place to start https://en.wikipedia.org/wiki/Thermoelectric_effect The references at the bottom of the article link to more detailed sources.

Does it work well enough? Try this article
15-Year-Old Develops Flashlight Powered by Body Heat, Wins Top Prize in Google Science Fair