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Abstract
Organic bulk-heterojunction (BHJ) solar cells comprising a blend of electron-donors (conjugated polymers) and electron-acceptors (fullerene derivatives) are promising alternative, renewable energy sources offering the possibility for low-cost, solution-based processing. To enhance solar cell performance and power conversion efficiencies, transmission and thermalization losses can be reduced by stacking sub-cells with complementary absorption behavior to obtain multi-junction solar cells. In this work, blends of various small and wide bandgap polymers (PCPDTBT, PSiF-DBT, PCDTBT, F8T2) and fullerene derivatives ([60]PCBM, [70]PCBM, ICBA) were evaluated with regard to their performance in organic PEDOT:PSS-free BHJ solar cells comprising a molybdenum(VI) oxide hole-transport layer and copper electrodes modified with a titanium interfacial layer. The focus was on thermally deposited metal (Al, Ag, Au, Cu, Ti) and metal oxide (TiOx, ZnO, MoO3) intermediate layers (IML) for organic multi-junction solar cells. In addition, recombination layers were modified via metal (Ca, Ti) and alkali-metal compound (LiF, Cs2CO3) interfacial layers to investigate the effect on the photovoltaic performance.
Originalsprache | englisch |
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Publikationsstatus | Veröffentlicht - Juni 2016 |
Veranstaltung | International Conference on Hybrid and Organic Photovoltaics (HOPV16) - Swansea, Swansea, Großbritannien / Vereinigtes Königreich Dauer: 28 Juni 2016 → 1 Juli 2016 |
Konferenz
Konferenz | International Conference on Hybrid and Organic Photovoltaics (HOPV16) |
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Land/Gebiet | Großbritannien / Vereinigtes Königreich |
Ort | Swansea |
Zeitraum | 28/06/16 → 1/07/16 |
Fields of Expertise
- Advanced Materials Science
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