Model systems for dye-sensitized solar cells: cyanidin-silver nanocluster hybrids at TiO₂ support

Abstract

The theoretical concept of this paper serves to identify the key steps in the design of novel solar cells based on bio-nano hybrids (cyanidin-Agn) on a TiO2 surface for possible DSSC application.

Green approach for the fabrication of a ternary nanocatalyst (Ag-ZnONPs@Cy) for visible light-induced photocatalytic reduction of nitroarenes to aminoarenes

“…The computed range for wavelength lies between approximately 300 nm to 700 nm, and the associated band gap energy is estimated to be within the range of 2.1 to 2.81 eV. 51–54 In light of the outcomes documented in existing literature, it is reasonable to anticipate that the cyanidin dye can serve effectively as a sensitizer for activating metal oxides with broadband gap energies within the visible light spectrum.…”

“…This intrinsic property renders the natural dye valuable as a photosensitizer in solar cell applications. 51 Numerous investigations have been conducted regarding its UV-Vis absorption characteristics and energy band gap, both in theoretical and practical contexts, using various solvents such as water, acetonitrile, and ethanol. The computed range for wavelength lies between approximately 300 nm to 700 nm, and the associated band gap energy is estimated to be within the range of 2.1 to 2.81 eV.…”

“…Utilizing ndings from UV-vis and DRS investigations, along with insights from comprehensive literature reviews, [51][52][53][54] it is evident that the cyanidin dye exhibits a band-gap energy situated within the visible light spectrum, as depicted in Fig. 6a and b.…”

“…range of 2.1 to 2.81 eV. [51][52][53][54] In light of the outcomes documented in existing literature, it is reasonable to anticipate that the cyanidin dye can serve effectively as a sensitizer for activating metal oxides with broadband gap energies within the visible light spectrum.…”

Enhancing Efficiency of Dye Sensitized Solar Cells by Coinage Metal Doping of Cyanidin-Silver Trimer Hybrids at TiO2 Support Based on Theoretical Study

“…In that context, we have previously computationally explored a new class of bio-nano sensitizers based on noble metal nanoclusters (NCs) interacting with natural (anthocyanidin) dyes [ 28 ]. In these bio-nano hybrid systems, nanoclusters introduce donor-acceptor properties shifting the HOMO and LUMO molecular orbitals in the desired direction, thus satisfying preconditions for successful electron injection and system regeneration [ 29 ].…”