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Efficient and stable, structurally inverted poly(3-hexylthiopen) : [6,6]-phenyl-C61-butyric acid methyl ester heterojunction solar cells with fibrous like poly(3-hexylthiopen)

Title data

Bandara, Jayasundera ; Shankar, Karthik ; Grimes, Craig A. ; Thelakkat, Mukundan:
Efficient and stable, structurally inverted poly(3-hexylthiopen) : [6,6]-phenyl-C61-butyric acid methyl ester heterojunction solar cells with fibrous like poly(3-hexylthiopen).
In: Thin Solid Films. Vol. 520 (2011) Issue 1 . - pp. 582-590.
ISSN 0040-6090
DOI: https://doi.org/10.1016/j.tsf.2011.07.022

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

We investigated an inverted organic photovoltaic device structure in which a densely packed similar to 100 nm thin TiO(2) layer on fluorine doped conducting glass serves as anode and poly(3,4-ethylenedioxythiophene): poly (styrenesulfonate)/Au layer on top of the active layer serves as cathode. The active layer is comprised of a blend of poly(3-hexylthiopene) (P3HT) and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The rectification behavior of such a device is improved significantly and injection losses are minimized compared to devices without any compact TiO(2) layer. Moreover, nanostructured P3HT active layer was achieved in-situ by spin coating concentrated pure P3HT and P3HT:PCBM blend and solar cell performances on thickness of the active layer were also investigated. For the inverted solar cells constructed with different concentrations of P3HT and PCBM keeping the P3HT:PCBM ratio 1:0.8 (wt.%), the highest short circuit current and efficiency was observed when the P3HT and PCBM concentration was equal to 1.5 (wt.%) and 1.2 (wt.%) respectively. This leads to highly stable and reproducible power conversion efficiency above 3.7% at 100 mW/cm(2) light intensity under AM 1.5 conditions. (C) 2011 Elsevier B.V. All rights reserved.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I
Profile Fields
Profile Fields > Emerging Fields
Profile Fields > Emerging Fields > Energy Research and Energy Technology
Research Institutions
Research Institutions > Collaborative Research Centers, Research Unit
Research Institutions > Collaborative Research Centers, Research Unit > SFB 481 Komplexe Makromolekül- und Hybridsysteme in inneren und äußeren Feldern
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professorship Applied Functional Polymers > Professorship Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professorship Applied Functional Polymers
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 13 Apr 2016 07:19
Last Modified: 21 Jul 2016 08:21
URI: https://eref.uni-bayreuth.de/id/eprint/1208