Title data
Hahn, Tobias ; Saller, Christina ; Weigl, M. ; Bauer, Irene ; Unger, Thomas ; Köhler, Anna ; Strohriegl, Peter:
Organic solar cells with crosslinked polymeric exciton blocking layer.
In: Physica Status Solidi A.
Vol. 212
(2015)
Issue 10
.
- pp. 2162-2168.
ISSN 1521-396X
DOI: https://doi.org/10.1002/pssa.201532040
Abstract in another language
We show that the performance of an organic solar cell can be increased by the introduction of an additional polymeric exciton blocking layer. In order to realize this, the novel polymer PFTPDAc with pendant acrylate groups is developed. Thin films are coated from a PFTPDAc solution and subsequently crosslinked by irradiation. Thereby, the film becomes completely insoluble and allows spincoating of a second polymer layer on top. We realize a three layer solar cell which contains a crosslinked PFTPDAc interlayer on top of the molybdenum oxide anode and layers of the low-bandgap polymer PCDTBT and C60. In comparison with a reference cell without the interlayer, the EQE is significantly increased in the spectral region between 400 and 650 nm. From current–voltage measurements a power conversion efficiency of 1.8% is determined. PL measurements show that the increase of solar cell performance is attributed to exciton blocking by the PFTPDAc interlayer.
Further data
Item Type: | Article in a journal |
---|---|
Refereed: | Yes |
Additional notes: | Early view (Online Version of Record published before inclusion in an issue) |
Keywords: | excitons; MoO3; organic solar cells; PCDTBT; photocrosslinking |
Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics II - Optoelectronics of Soft Matter > Chair Experimental Physics II - Optoelectronics of Soft Matter - Univ.-Prof. Dr. Anna Köhler Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics II - Optoelectronics of Soft Matter |
Result of work at the UBT: | Yes |
DDC Subjects: | 500 Science > 530 Physics |
Date Deposited: | 03 Sep 2015 07:08 |
Last Modified: | 16 Mar 2023 07:58 |
URI: | https://eref.uni-bayreuth.de/id/eprint/19015 |