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Electrosprayed and selenized Cu/In metal particle films |
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| Authors: | M Kaelin H Zogg O Wilhelm T Meyer |
| Affiliation: | a Thin Film Physics Group, Laboratory for Solid State Physics, ETH Technoparkstr 1, PFA H43, CH-8005 Zürich, Switzerland b Department of Mechanical and Process Engineering, Particle Technology Laboratory, ETH Zentrum, CH-8092 Zürich, Switzerland c Solaronix SA, Rue de l'ouriette 129, 1170 Aubonne, Switzerland |
| Abstract: | Nano-particulate copper and indium metal layers of 1-2 μm have been deposited by non-vacuum techniques such as doctor blade, screen printing and electrospray using alcoholic suspension pastes. Electrospray showed a high efficiency of material usage and yielded the most uniform morphology. The metal precursor layers were subjected to a thermal treatment (500-600 °C) in selenium vapor to convert the porous metal layers into CuInSe2 compound layers. The chemical conversion, investigated by X-ray diffraction, showed the presence of the In2O3 impurity phase in the precursor as well as in the selenized layers. |
| Keywords: | Electrospray Copper indium selenide Selenization Nanoparticles |
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