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Proceedings Paper

Lifetime analysis and degradation study of polymer solar cells
Author(s): Remi de Bettignies; Jocelyne Leroy; Sylvain Chambon; Muriel Firon; Carole Sentein; Lionel Sicot; Laurence Lutsen
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Paper Abstract

Though being much less efficient than silicon cells, organic solar cells exhibit a unique combination of interesting properties: low cost, flexibility, and the possibility of large surface coverage. Large progresses have been made over the last years using MDMO-PPV (Poly[2-methoxy-5-(3’,7’-dimethyloctyloxy)-1,4-phenylenevinylene) reaching efficiencies of 2.9% and recently efficiencies over 3%, using poly(3-hexyl thiophene). A great deal of research however has still to be invested to improve the current state of the art. Among the main key-points to be addressed are namely the stability and lifetime of such devices. We are currently working on bulk heterojunction solar cells made from MDMO-PPV and PCBM (methano-fullerene[6,6]-phenyl C61-butyric acid methyl ester). Different batches of MDMO-PPV, originating from different synthesis modes (classical "Gilch" synthesis and "Sulphinyl" synthesis led by IMEC-IMOMEC) have been tested. Evolution of the power efficiency following continuous illumination (AM1.5, 80 mW.cm-2) was characterized under controlled atmosphere of nitrogen. In parallel, photodegradation studies are also investigated and electrical modeling is under way in order to get a better understanding of the relations between photochemical and electrical parameters of the diode that can be deduced from I/V curves.

Paper Details

Date Published: 3 November 2004
PDF: 8 pages
Proc. SPIE 5520, Organic Photovoltaics V, (3 November 2004); doi: 10.1117/12.560737
Show Author Affiliations
Remi de Bettignies, CEA Saclay (France)
Jocelyne Leroy, CEA Saclay (France)
Sylvain Chambon, CEA Saclay (France)
Muriel Firon, CEA Saclay (France)
Carole Sentein, CEA Saclay (France)
Lionel Sicot, CEA Saclay (France)
Laurence Lutsen, IMO, Limburgs Univ. Centrum (Belgium)


Published in SPIE Proceedings Vol. 5520:
Organic Photovoltaics V
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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