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Dresden 2020 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 20: Focus Session: Organic-based Hybrid Thermoelectrics I

DS 20.1: Hauptvortrag

Mittwoch, 18. März 2020, 09:30–10:00, CHE 89

Progress and challenges of organic and hybrid based thermoelectrics — •Mariano Campoy-Quiles — Institute of Materials Science of Barcelona (ICMAB-CSIC)

Heat is a ubiquitous source of energy. About half of the energy that the sun delivers to the Earth is in the form of infrared radiation. Moreover, two/thirds of the energy produced for human consumption is lost in the form of heat. In this scenario, solid state heat-to-electricity converters, i.e. thermoelectrics, have strong potential to harvest part of this untapped diluted energy source. Widespread use of thermoelectric generators has been thus far elusive due to the relatively high cost of the technology, and the fact that most thermoelectric materials operating at low temperatures are based on non-abundant or toxic materials. Solution processed carbon based materials are currently being investigated as a very promising alternative for low-cost, low temperature thermoelectrics. In this talk I will describe the progress and challenges for three carbon based systems: highly doped conjugated polymers, carbon nanotubes, and composites thereof. I will focus on our current understanding of what governs the main material thermoelectric properties, namely electrical conductivity, Seebeck coefficient and thermal conductivity.

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