Indacenodithienothiophene-Based Ternary Organic Solar Cells

Journal article
(Original article)

Publication Details

Author(s): Gasparini N, García-Rodríguez A, Prosa M, Bayseç S, Cando AP, Katsouras A, Avgeropoulos A, Pagona G, Gregoriou VG, Chochos CL, Allard S, Scherf U, Brabec C, Ameri T
Journal: Frontiers in Energy Research
Publication year: 2017
Volume: 4
Journal issue: 40
ISSN: 2296-598X
Language: English


One of the key aspects to achieve high efficiency in ternary bulk-hetorojunction solar cells is the physical and chemical compatibility between the donor materials. Here, we report the synthesis of a novel conjugated polymer (P1) containing alternating pyridyl[2,1,3]thiadiazole between two different donor fragments, dithienosilole and indacenodithienothiophene (IDTT), used as a sensitizer in a host system of indacenodithieno[3,2-b]thiophene,2,3-bis(3-(octyloxy)phenyl)quinoxaline (PIDTTQ) and [6,6]-phenyl C70 butyric acid methyl ester (PC71BM). We found that the use of the same IDTT unit in the host and guest materials does not lead to significant changes in the morphology of the ternary blend compared to the host binary. With the complementary use of optoelectronic characterizations, we found that the ternary cells suffer from a lower mobility-lifetime (μτ) product, adversely impacting the fill factor. However, the significant light harvesting in the near infrared region improvement, compensating the transport losses, results in an overall power conversion efficiency enhancement of ~7% for ternary blends as compared to the PIDTTQ:PC71BM devices.

FAU Authors / FAU Editors

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

Additional Organisation
Exzellenz-Cluster Engineering of Advanced Materials

External institutions with authors

Advent Technologies SA
Bergische Universität Wuppertal
Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN)
National Hellenic Research Foundation (NHRF) / Εθνικό Ίδρυμα Ερευνών
University of Ioannina / Πανεπιστήμιο Ιωαννίνων

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

Gasparini, N., García-Rodríguez, A., Prosa, M., Bayseç, S., Cando, A.P., Katsouras, A.,... Ameri, T. (2017). Indacenodithienothiophene-Based Ternary Organic Solar Cells. Frontiers in Energy Research, 4(40).

Gasparini, Nicola, et al. "Indacenodithienothiophene-Based Ternary Organic Solar Cells." Frontiers in Energy Research 4.40 (2017).


Last updated on 2018-17-10 at 16:00