Revealing Minor Electrical Losses in the Interconnecting Layers of Organic Tandem Solar Cells

Journal article
(Original article)


Publication Details

Author(s): Prosa M, Li N, Gasparini N, Bolognesi M, Seri M, Muccini M, Brabec C
Journal: Advanced Materials Interfaces
Publisher: Wiley-VCH Verlag
Publication year: 2017
ISSN: 2196-7350
Language: English


Abstract


The interconnection layer (ICL) of organic multijunction solar cells represents one of the most delicate parts to ensure an efficient device operation. In view of pushing the efficiencies toward the theoretical limit, the individuation of minor losses affecting the ICL operation is of crucial importance. However, the difficulties arising from its position within the complex device structure typically hamper an accurate and selective investigation of the ICL. Here, a method based on the analysis of the photo-generated current density-voltage (Jph-V) response of solar cells, in the region of bias over the open-circuit voltage, is proved to individuate minor electrical losses within the ICL. Interestingly, the proposed method is demonstrated to effectively operate on tandem substructures, where different ICLs are investigated through the combination of materials having diverse characteristics. Furthermore, the use of a complementary investigation technique based on electroluminescence (EL) analysis allows to distinguish the specific nature of the electrical losses. The combination of Jph-V and EL analyses represents an elegant and advanced approach to shed light on the quality of ICLs in tandem substructures by avoiding the fabrication of the more complex tandem architecture. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)
Gasparini, Nicola
Institute Materials for Electronics and Energy Technology (i-MEET)
Li, Ning Dr.-Ing.
Institute Materials for Electronics and Energy Technology (i-MEET)


Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials


External institutions with authors

Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN)
The Institute of Organic Synthesis and Photoreactivity (ISOF)


Research Fields

B Nanoelectronic Materials
Exzellenz-Cluster Engineering of Advanced Materials
Neue Materialien und Prozesse
Research focus area of a faculty: Technische Fakultät


How to cite

APA:
Prosa, M., Li, N., Gasparini, N., Bolognesi, M., Seri, M., Muccini, M., & Brabec, C. (2017). Revealing Minor Electrical Losses in the Interconnecting Layers of Organic Tandem Solar Cells. Advanced Materials Interfaces. https://dx.doi.org/10.1002/admi.201700776

MLA:
Prosa, Mario, et al. "Revealing Minor Electrical Losses in the Interconnecting Layers of Organic Tandem Solar Cells." Advanced Materials Interfaces (2017).

BibTeX: 

Last updated on 2018-08-11 at 13:50