Amerigon has entered into a purchase agreement with shareholders to acquire a majority voting share of W.E.T. Automotive Systems (W.E.T.), a publicly-traded German company located in Odelzhausen, Germany. The acquisition brings together the complementary business strengths of each company and will allow for improved customer responsiveness and product development.

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Advancing Thermoelectrics
Advanced Materials
ZT :: Plus Thermoelectric Materials

ZT Plus™

Amerigon's advanced technology team along with its university partners have performed extensive research into the development of the next generation of thermoelectric (TE) materials, and have successfully developed materials that significantly outperform the best presently available TE materials. ZT Plus aims to complete the development of these advanced materials and to create innovative manufacturing capabilities to produce the materials in volume, and in a cost-efficient manner.

ZT Plus marks an important milestone for Amerigon. It allows Amerigon to continue its global leadership in thermoelectric technology and to continue to bring efficient, effective and practical thermoelectric solutions to market.

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ZT Plus: What's in a name?


Thermoelectric Figure of Merit

The ZT of a thermoelectric material is a dimensionless unit that is used to compare the efficiencies of various materials. ZT is determined by three physical parameters: the thermopower α (also known as Seebeck factor), the electrical conductivity σ, the thermal conductivity k = ke + kph, where the ke and kph are the thermal conductivities of electrons and phonons, respectively, and the absolute temperature T

Thermoelectric Figure of Merit Formula

Most thermoelectric devices on the market today exhibit peak ZT value of around 1.0. As its name implies, ZT Plus will aim to increase the ZT value through the application of advanced material development and innovative manufacturing, ultimately enabling more widespread use of thermoelectric systems.

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