Samsung's power grip

I haven't been very kind to Samsung Electronics Co. recently for their "Samsung Crest Solar" : to me, solar panels are not necessarily the best solution for devices which may suffer from excessive heat.

But the same company announced today a new metallic material, easy to produce, which can turn temperature differences into electricity, improving efficiency by 80%.

Now this could be a disruptive technology for small devices as well as for construction and all industries. Provided it works at a relatively low temperature, naturally.