Self-assembling discotic materials with low symmetry for organic photovoltaics

0556304 - FZÚ 2023 RIV NL eng J - Journal Article
Chen, H.-H. - Cigl, Martin - Cheng, C.-T. - Bogdanowicz, K.A. - Iwan, A. - Podoliak, Natalia - Vaňkátová, Petra - Hamplová, Věra - Dysz, K. - Przybyl, W. - Nitschke, P. - Schab-Balcerzak, E. - Pociecha, D. - Bubnov, Alexej
Self-assembling discotic materials with low symmetry for organic photovoltaics.
Journal of Molecular Liquids. Roč. 354, May (2022), č. článku 118868. ISSN 0167-7322. E-ISSN 1873-3166
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GA22-16499S
Grant - others:AV ČR(CZ) TWN-18-01; OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : discotic materials * liquid crystals * self-organization * racemic * chiral * organic photovoltaics * polymer solar cells
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 6, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.molliq.2022.118868

Efficient confiscations are designed and their self-organizing, optical, electrochemical, structural and tuning of the power conversion efficiency of the organic photovoltaic devices still remains a highlighted task. Using self-organizing materials of various molecular shape as smart dopants to the active layer of the organic photovoltaic cells is one of the considered possibilities. Three novel discotic compounds in the non-chiral, homogeneously chiral and racemic modifications are designed. All three materials exhibit the columnar rectangular phase stable over a reasonably broad temperature range. Bulk-heterojunction solar cells based on the new discotic materials and PTB7 and PC71BM were designed and constructed, the resulting power conversion efficiency values are strongly dependent on the molecular structure (non-chiral, chiral, racemic) and specific amount of compound in active layer.
Permanent Link: http://hdl.handle.net/11104/0330589