Environmentally Printing Efficient Organic Tandem Solar Cells with High Fill Factors: A Guideline Towards 20\% Power Conversion Efficiency

Journal article
(Original article)


Publication Details

Author(s): Li N, Baran D, Spyropoulos GD, Zhang H, Berny S, Turbiez M, Ameri T, Krebs FC, Brabec C
Journal: Advanced Energy Materials
Publication year: 2014
Volume: 4
Journal issue: 11
Pages range: 1400084
ISSN: 1614-6832
eISSN: 1614-6840
Language: English


Abstract


The tandem concept involves stacking two or more cells with complementary absorption spectra in series or parallel connection, harvesting photons at the highest possible potential. It is strongly suggested that the roll-to-roll production of organic solar cells will employ the tandem concept to enhance the power conversion efficiency (PCE). However, due to the undeveloped deposition techniques, the challenges in ink formulation as well as the lack of commercially available high performance active materials, roll-to-roll fabrication of highly efficient organic tandem solar cells currently presents a major challenge. The reported high PCE values from lab-scale spin-coated devices are, of course, representative, but not helpful for commercialization. Here, organic tandem solar cells with exceptionally high fill factors and PCE values of 7.66\% (on glass) and 5.56\% (on flexible substrate), which are the highest values for the solution-processed tandem solar cells fabricated by a mass-production compatible coating technique under ambient conditions, are demonstrated. To predict the highest possible performance of tandem solar cells, optical simulation based on experimentally feasible values is performed. A maximum PCE of 21\% is theoretically achievable for an organic tandem solar cell based on the optimized bandgaps and achieved fill factors.



FAU Authors / FAU Editors

Ameri, Tayebeh Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Baran, Derya
Institute Materials for Electronics and Energy Technology (i-MEET)
Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Li, Ning Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)
Zhang, Hong
Institute Materials for Electronics and Energy Technology (i-MEET)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


External institutions with authors

BASF Schweiz AG
Bayerisches Zentrum für Angewandte Energieforschung e.V. (ZAE Bayern)
Merck Chemicals Ltd.
Technical University of Denmark / Danmarks Tekniske Universitet (DTU)


Research Fields

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Li, N., Baran, D., Spyropoulos, G.D., Zhang, H., Berny, S., Turbiez, M.,... Brabec, C. (2014). Environmentally Printing Efficient Organic Tandem Solar Cells with High Fill Factors: A Guideline Towards 20\% Power Conversion Efficiency. Advanced Energy Materials, 4(11), 1400084. https://dx.doi.org/10.1002/aenm.201400084

MLA:
Li, Ning, et al. "Environmentally Printing Efficient Organic Tandem Solar Cells with High Fill Factors: A Guideline Towards 20\% Power Conversion Efficiency." Advanced Energy Materials 4.11 (2014): 1400084.

BibTeX: 

Last updated on 2019-09-08 at 09:03