Investigation of optoelectronic properties of triphenylamine-based dyes featuring heterocyclic anchoring groups for DSSCs’ applications: a theoretical study
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Date
2020-08-05
Authors
Deogratias, Geradius
Al-Qurashi, Ohoud S.
Wazzan, Nuha
Seriani, Nicola
Pogrebnaya, Tatiana P.
Pogrebnoi, Alexander M.
Journal Title
Journal ISSN
Volume Title
Publisher
Springer Nature Switzerland AG.
Abstract
Design and synthesis of new potent sensitizers are of interest for realization of high-efficiency Dye Sensitized Solar Cells (DSSCs). Modification of the triphenylamine-based dyes by introducing suitable anchoring groups aimed at improvement of optoelectronic properties is attempted in our work. The molecular structure, molecular orbitals and energies, electronic absorption spectra, free energies of electron injection and dye regeneration, chemical reactivity parameters and adsorption to TiO2 semiconductor have been reported. Density functional theory (DFT) and time-dependent DFT (TD-DFT) were used to obtain the reported properties. The results reveal superior optical, electronic properties, chemical reactivity parameters and adsorption energies for the investigated dyes. The findings evince that the dyes featuring heterocyclic anchoring groups could be potential candidates for DSSCs’ applications; the new materials are worthy of being investigated experimentally.
Sustainable Development Goals
SDG 7: Affordable and Clean Energy, SDG 9: Industry, Innovation, and Infrastructure, SDG 12: Responsible Consumption and Production.
Keywords
Anchoring groups, TD-DFT; Heterocyclic, TPA-based sensitizers