Flexible organic tandem solar modules with 6\% efficiency: combining roll-to-roll compatible processing with high geometric fill factors

Spyropoulos G, Kubis P, Li N, Baran D, Lucera L, Salvador MF, Ameri T, Voigt M, Krebs FC, Brabec C (2014)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2014

Journal

Energy and Environmental Science Royal Society of Chemistry

Book Volume: 7

Pages Range: 3284--3290

Volume: 7

Issue: 10

Journal Issue: 10

DOI: 10.1039/c4ee02003k

Abstract

Organic solar cell technology bears the potential for high photovoltaic performance combined with truly low-cost, high-volume processing. Here we demonstrate organic tandem solar modules on flexible substrates fabricated by fully roll-to-roll compatible processing at temperatures <70 °C. By using ultrafast laser patterning we considerably reduced the “dead area” of the modules and achieved geometric fill factors beyond 90\%. The modules revealed very low interconnection-resistance compared to the single tandem cells and exhibited a power conversion efficiency of up to 5.7\%. Bending tests performed on the modules suggest high mechanical resilience for this type of device. Our findings inform concrete steps towards high efficiency photovoltaic applications on curved, foldable and moving surfaces.

Authors with CRIS profile

Georgios Spyropoulos Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Peter Kubis Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Ning Li Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Derya Baran Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Luca Lucera Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Michael Filipe Salvador Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Tayebeh Ameri Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Monika Voigt Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET) (i-MEET)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials (EAM) Erlangen Graduate School in Advanced Optical Technologies (SAOT)

Involved external institutions

Technical University of Denmark / Danmarks Tekniske Universitet (DTU) DK Denmark (DK)

How to cite

APA:

Spyropoulos, G., Kubis, P., Li, N., Baran, D., Lucera, L., Salvador, M.F.,... Brabec, C. (2014). Flexible organic tandem solar modules with 6\% efficiency: combining roll-to-roll compatible processing with high geometric fill factors. Energy and Environmental Science, 7(10), 3284--3290. https://doi.org/10.1039/c4ee02003k

MLA:

Spyropoulos, Georgios, et al. "Flexible organic tandem solar modules with 6\% efficiency: combining roll-to-roll compatible processing with high geometric fill factors." Energy and Environmental Science 7.10 (2014): 3284--3290.

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