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Proceedings Paper

Heterojunction solar cell fabricated by spin-coating of a CNT/PEDOT:PSS heteroemitter on top of a crystalline silicon absorber
Author(s): Heinz-Christoph Neitzert; Stefan Schwertheim; Katrin Meusinger; Marcel Leinhos; Wolfgang R. Fahrner
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Paper Abstract

Crystalline silicon / organic thin film heterojunction based solar cells have been realized using spin-coating deposition. Devices with different organic films, all based on PEDOT:PSS, which in some cases have been mixed with double-walled or multi-walled carbon nanotubes, have been compared. Highest conversion efficiencies have been obtained either with a highly conductive PEDOT:PSS emitter withut nanotubes or with a nanocomposite emitter consisting of low conductive PEDOT:PSS emitter mixed with multi-walled carbon nanotubes. Using the nanocomposite emitter, rather high values for the solar cell shunt resistances have been obtained without any etching procedure in order to improve the lateral current confinement. A comparison with a Schottky diode, realized as reference device by the evaporation of the top metal contact directly on top of the crystalline silicon substrate, showed that the heterodiode characteristics was not dominated by leakage current paths and short circuits through the organic layer.

Paper Details

Date Published: 28 May 2009
PDF: 7 pages
Proc. SPIE 7364, Nanotechnology IV, 73640L (28 May 2009); doi: 10.1117/12.821469
Show Author Affiliations
Heinz-Christoph Neitzert, Salerno Univ. (Italy)
Stefan Schwertheim, Hagen Univ. (Germany)
Katrin Meusinger, Hagen Univ. (Germany)
Marcel Leinhos, Hagen Univ. (Germany)
Wolfgang R. Fahrner, Hagen Univ. (Germany)

Published in SPIE Proceedings Vol. 7364:
Nanotechnology IV
Achim Wixforth, Editor(s)

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