That's encouraging, says Arun Majumdar, a mechanical engineer at the University of California in Berkeley who specializes in energy conversion and transport at such small scales. Heating and cooling technologies using materials with a ZT of 3 or more begin to close the cost gap with conventional technologies, he points out. Until now, bulk materials reached ZTs in a range of only 0.6 to 1.0. Kanatzidis's team pushed their material to a ZT of 2.2. In principle, if semiconductors can be formed with sufficiently high ZTs, it might be possible to build self-powering devices or to augment electricity.
mondjuk a végében erősen kételkedem, mert az az örökmozgó lenne :D