Thermoelectric properties of n-type C60 thin films and their application in organic thermovoltaic devices

The high performance of n-type organic thin-film thermoelectric elements utilizing a bilayer structure composed of C-60 and Cs2CO3 was demonstrated. By employing an underlying layer, the electrical conductivity and the power factor of the n-type thermoelectric elements were significantly improved, and a maximum power factor of 20.5 mu W m(-1) K-2 at room temperature was demonstrated. In addition, an organic p-n prototype thermovoltaic device was demonstrated. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3631633]