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DPG

Berlin 2018 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 23: Lithography II: Focused Electron Beam Induced Processing: 3D Nano-Printing for Material Science (Focussed Session): Afternoon Session (joint session DS/KFM)

DS 23.10: Vortrag

Mittwoch, 14. März 2018, 17:30–17:45, H 2032

Energy collection from green-house infra-red emission using nanogranular compoundmaterials — •Koops Hans Wilfried Peter — HaWilKo GmbH , Ober-Ramstadt, Germany

According to a 10 years average measurement of NASA of the earth’s energy household, the sun sends 340,4 W/m2 direct to the earth, but only 163,3 W/m2 reach the ground. In the IR a backreflection from greenhouse gases delivers 340 W/m2.

A nanogranular Pt/C material has a bandgap of 128 meV, which allows to absorb IR-Light. This radiation can be absorbed by a nanocrystalline Pt/C compound. Large absorber areas can be used. Silicon material absorbes only energies above 1.3 eV during daylight from the visible light. The green house gases, however, emit their radiation all day and night in the IR. The absorbed IR photons can be stored in the compound material as coherent Boson fields. A field gradient applied to such fields can move the Bosons and make them decay at the end of the field, and release electrons as a current. HaWilKo can produce a 1 cm2 large sheet to demonstrate the energy harvesting in the IR.

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