Fabrication and performance analysis of set standard natural dye-sensitized solar cell (N-DSSC) using extracted Terminalia kattapa (Red), Azadirachia indica (Green), and Clitoria ternatea (Blue) dyes with virgin Degussa p25 photo-anode

Thangaraju, D (2022) Fabrication and performance analysis of set standard natural dye-sensitized solar cell (N-DSSC) using extracted Terminalia kattapa (Red), Azadirachia indica (Green), and Clitoria ternatea (Blue) dyes with virgin Degussa p25 photo-anode. Journal of Materials Science: Materials in Electronics, 33 (21). pp. 17331-17342. ISSN 0957-4522

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Abstract

Three different natural dyes, such as Terminalia kattapa (Red, fruit), Azadirachia indica (Green, leaf), and Clitoria ternatea (Blue, flower), were extracted to fabricate natural dye-sensitized solar cell (N-DSSC) with standard TiO2 nanoparticles (p25) on the FTO base layer. A comparative study was carried out on the performance of RA, GA, and BA-based DSSCs based on optical and electrical properties. The anatase and rutile phases on bare TiO2 film have been confirmed along with the formation of titanium sub-oxides due to the annealing process confirmed by X-ray diffraction. Significant absorption in the visible region has been attained in photo-anodes, which was confirmed with an optical band gap reported from UV reflectance spectra. For the proper electron injection process, a specific functional group has been identified in extracted sensitizer using Fourier transform infrared spectra to ensure the adsorption capability of dye molecules toward TiO2 particles. Photocatalytic properties of photo-anode have been analyzed using photoluminescence (PL) spectra by investigating the rate of recombination via PL intensity. J-V characteristics of fabricated N-DSSC with extracted natural dyes show that the N-DSSC with GA photo-anode offered the highest efficiency (0.79%) among other dyes used in this investigation, such as RA (0.51%) and BA-based photo-anode (0.29%). DSSCs fabricated using photo-anodes RA, GA, and BA (using water as solvent) show excellent outstanding stability and decent efficiency than the ethanol-based cells.

Item Type: Article
Uncontrolled Keywords: Anodes; Efficiency; Energy gap; Fabrication; Organic solvents; Oxide minerals; Photocatalytic activity; TiO2 nanoparticles; Titanium dioxide; Base layers; Blue dyes; Clitoria ternatea; Comparatives studies; Degussa P25; Dye- sensitized solar cells; Green leaves; Natural dye; Performances analysis; Photo-anodes; Dye-sensitized solar cells
Subjects: G Chemistry > Organic chemistry
Divisions: Physics
Depositing User: Users 5 not found.
Date Deposited: 15 May 2024 09:03
Last Modified: 15 May 2024 09:03
URI: https://ir.psgitech.ac.in/id/eprint/584

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