New Directions for Low Dimensional Thermoelectricity

Low-Dimensional Thermoelectricity

Thermoelectric materials are used as solid-state heat pumps and as power generators. The low efficiency of devices based on conventional bulk thermoelectric materials confines their applications to niches in which their advantages in compactness and controllability outweigh that drawback. Recent developments in nanotechnologies have led to the development of thermoelectric nano-materials with d...

New Directions for Low-Dimensional Thermoelectric Materials

Providing a sustainable supply of energy to the world’s population will become a major societal problem for the 21st century as fossil fuel supplies decrease and world demand increases. Thermoelectric phenomena, which involve the conversion between thermal and electrical energy, and provide a method for heating and cooling materials, are expected to play an increasingly important role in meetin...

Revisiting some chalcogenides for thermoelectricity.

Thermoelectric materials that are efficient well above ambient temperature are needed to convert waste-heat into electricity. Many thermoelectric oxides were investigated for this purpose, but their power factor (PF) values were too small (∼10-4 W m-1 K-2) to yield a satisfactory figure of merit zT. Changing the anions from O2- to S2- and then to Se2- is a way to increase the covalency. In this...

New Directions for IARC

New directions for WHO?

Since its inception over 50 years ago, the World Health Organization (WHO) has earned trust and respect globally for its achievements as the lead agency for directing and coordinating international health work. Through technical cooperation and policy guidance, it promotes and coordinates international efforts to control major infectious diseases. The global eradication of smallpox and the immi...