Designing small molecule organic solar cells with high open-circuit voltage

Julija Kudrjasova, Melissa Van Landeghem, Tim Vangerven, Jurgen Kesters, Gaël H.L. Heintges, Ilaria Cardinaletti, Ruben Lenaerts, Huguette Penxten, Peter Adriaensens, Laurence Lutsen, Dirk Vanderzande, Jean Manca, Etienne Goovaerts, Wouter Maes

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Three extended 2,5-dithienylthiazolo[5,4-d]thiazole-based small molecule chromophores are prepared via a sustainable direct arylation approach and their physicochemical and opto-electrical material characteristics are analyzed toward integration in solution-processed bulk heterojunction organic photovoltaics. Efficient charge separation and high values of the charge transfer state energy are derived from sensitive ground and excited state absorption and photoluminescence measurements on blends of the thiazolo[5,4-d]thiazole-based electron donor components with the PC71BM fullerene acceptor. Upon implementation in organic solar cells, a maximum power conversion efficiency of 2.7% and particularly high open-circuit voltages (0.93−0.98 V) are observed, which are correlated to the charge transfer state energies as derived from photoluminescence, Fourier transform photocurrent spectroscopy and combined electrochemical and photophysical data. Furthermore, several loss processes at the origin of the modest short-circuit current densities and fill factors are elucidated.

Original languageEnglish
Pages (from-to)1253-1261
Number of pages9
JournalChemistrySelect
Volume2
Issue number3
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

Open circuit voltage
Electron energy levels
Charge transfer
Photoluminescence
Fullerenes
Thiazoles
Molecules
Chromophores
Photocurrents
Excited states
Short circuit currents
Ground state
Conversion efficiency
Heterojunctions
Fourier transforms
Current density
Spectroscopy
Electrons
Organic solar cells
dithienylthiazolo(5,4-d)thiazole

Keywords

  • charge transfer
  • direct arylation
  • donor-acceptor systems
  • organic photovoltaics
  • organic semiconductors

Cite this

Kudrjasova, J., Van Landeghem, M., Vangerven, T., Kesters, J., Heintges, G. H. L., Cardinaletti, I., ... Maes, W. (2017). Designing small molecule organic solar cells with high open-circuit voltage. ChemistrySelect, 2(3), 1253-1261. https://doi.org/10.1002/slct.201601915
Kudrjasova, Julija ; Van Landeghem, Melissa ; Vangerven, Tim ; Kesters, Jurgen ; Heintges, Gaël H.L. ; Cardinaletti, Ilaria ; Lenaerts, Ruben ; Penxten, Huguette ; Adriaensens, Peter ; Lutsen, Laurence ; Vanderzande, Dirk ; Manca, Jean ; Goovaerts, Etienne ; Maes, Wouter. / Designing small molecule organic solar cells with high open-circuit voltage. In: ChemistrySelect. 2017 ; Vol. 2, No. 3. pp. 1253-1261.
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Kudrjasova, J, Van Landeghem, M, Vangerven, T, Kesters, J, Heintges, GHL, Cardinaletti, I, Lenaerts, R, Penxten, H, Adriaensens, P, Lutsen, L, Vanderzande, D, Manca, J, Goovaerts, E & Maes, W 2017, 'Designing small molecule organic solar cells with high open-circuit voltage', ChemistrySelect, vol. 2, no. 3, pp. 1253-1261. https://doi.org/10.1002/slct.201601915

Designing small molecule organic solar cells with high open-circuit voltage. / Kudrjasova, Julija; Van Landeghem, Melissa; Vangerven, Tim; Kesters, Jurgen; Heintges, Gaël H.L.; Cardinaletti, Ilaria; Lenaerts, Ruben; Penxten, Huguette; Adriaensens, Peter; Lutsen, Laurence; Vanderzande, Dirk; Manca, Jean; Goovaerts, Etienne; Maes, Wouter.

In: ChemistrySelect, Vol. 2, No. 3, 01.01.2017, p. 1253-1261.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Designing small molecule organic solar cells with high open-circuit voltage

AU - Kudrjasova, Julija

AU - Van Landeghem, Melissa

AU - Vangerven, Tim

AU - Kesters, Jurgen

AU - Heintges, Gaël H.L.

AU - Cardinaletti, Ilaria

AU - Lenaerts, Ruben

AU - Penxten, Huguette

AU - Adriaensens, Peter

AU - Lutsen, Laurence

AU - Vanderzande, Dirk

AU - Manca, Jean

AU - Goovaerts, Etienne

AU - Maes, Wouter

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JF - ChemistrySelect

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Kudrjasova J, Van Landeghem M, Vangerven T, Kesters J, Heintges GHL, Cardinaletti I et al. Designing small molecule organic solar cells with high open-circuit voltage. ChemistrySelect. 2017 Jan 1;2(3):1253-1261. https://doi.org/10.1002/slct.201601915