Photodegradation of Si-PCPDTBT:PCBM active layer for organic solar cells applications: A surface and bulk investigation

Journal article
(Original article)


Publication Details

Author(s): Tournebize A, Seck M, Vincze A, Distler A, Egelhaaf HJ, Brabec C, Rivaton A, Peisert H, Chasse T
Journal: Solar Energy Materials and Solar Cells
Publisher: Elsevier
Publication year: 2016
Volume: 155
Pages range: 323-330
ISSN: 0927-0248


Abstract


The photooxidation of a polymer blend film used in efficient solar cells based on poly[(4,40-bis(2-ethylhexyl)dithieno[3,2-b:20,30- d]silole)-2,6-diylalt-(2,1,3-benzothiadiazole)-4,7-diyl], (Si-PCPDTBT) and [6,6]-phenyl-C71-butyric acid methyl (PC70BM) has been investigated. A set of experiments from complementary techniques was developed to monitor the modifications during ageing that occur not only in the bulk but also at the surface. The surface analyses were performed by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), and the bulk analyses by UV–visible spectroscopy and infrared (IR) spectroscopy. The results reveal that the silicon bridge atom is the first target of degradation. We have identified the existence of a photooxidation profile within the 300 nm thick film. Such a heterogeneous degradation was confirmed by time-of-flight secondary ion mass spectrometry (TOF-SIMS) depth profiling.



FAU Authors / FAU Editors

Brabec, Christoph Prof. Dr.
Institute Materials for Electronics and Energy Technology (i-MEET)


External institutions with authors

Bayerisches Zentrum für Angewandte Energieforschung e.V. (ZAE Bayern)
BELECTRIC OPV GmbH
Eberhard Karls Universität Tübingen
International Laser Centre Bratislava
L’université Blaise Pascal (L'UBP) / Blaise Pascal University


How to cite

APA:
Tournebize, A., Seck, M., Vincze, A., Distler, A., Egelhaaf, H.-J., Brabec, C.,... Chasse, T. (2016). Photodegradation of Si-PCPDTBT:PCBM active layer for organic solar cells applications: A surface and bulk investigation. Solar Energy Materials and Solar Cells, 155, 323-330. https://dx.doi.org/10.1016/j.solmat.2016.06.026

MLA:
Tournebize, Aurelien, et al. "Photodegradation of Si-PCPDTBT:PCBM active layer for organic solar cells applications: A surface and bulk investigation." Solar Energy Materials and Solar Cells 155 (2016): 323-330.

BibTeX: 

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