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September 14th, 2007
Charging current from the campfire
Abstract:
"It is not normally possible to optimise all those properties at the same time," B�ttner remarks. For thermoelectricity to achieve a widespread breakthrough, the efficiency of the materials would have to be at least doubled.
Micropower engineering can achieve this with nanomaterials and special manufacturing pro-cesses. The key to success lies in composite materials that must not be more than a few micrometres thick - even though they are made up of between one and two thousand nanometre-scale layers. Such materials can already be produced in the laboratory, while developers are still working to scale up the processes to industrial level.
Source:
engineeringnews.co.za
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