NDLI: Impact of $TiO_{2}$ Nanostructures on Dye-Sensitized Solar Cells Performance

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Impact of $TiO_{2}$ Nanostructures on Dye-Sensitized Solar Cells Performance

Content Provider	MDPI
Author	Aleksandra, Drygała Tomasz, Tański Gnida, Paweł Jarka, Paweł Chulkin, Pavel Libera, Marcin Schab-Balcerzak, Ewa
Copyright Year	2021
Description	The effect of TiO2 nanostructures such as nanoparticles, nanowires, nanotubes on photoanode properties, and dye-sensitized solar cells photovoltaic parameters were studied. The series of dye-sensitized solar cells based on two dyes, that is, commercially N719 and synthesized 3,7′-bis(2-cyano-1-acrylic acid)-10-ethyl-phenothiazine were tested. Additionally, the devices containing a mixture of this sensitizer and chenodeoxycholic acid as co-adsorbent were fabricated. The amount of adsorbed dye molecules to TiO2 was evaluated. The prepared photoanodes with different TiO2 nanostructures were investigated using UV-Vis spectroscopy, optical, atomic force, and scanning electron microscopes. Photovoltaic response of constructed devices was examined based on current-voltage characteristics and electrochemical impedance spectroscopy measurements. It was found that the highest UV-Vis absorption exhibited the photoanode with nanotubes addition. This indicates the highest number of sensitizer molecules anchored to the titanium dioxide photoanode, which was subsequently confirmed by dye-loading tests. The highest power conversion efficiency was (6.97%) for solar cell containing nanotubes and a mixture of the dyes with a co-adsorbent.
Starting Page	1633
e-ISSN	19961944
DOI	10.3390/ma14071633
Journal	Materials
Issue Number	7
Volume Number	14
Language	English
Publisher	MDPI
Publisher Date	2021-03-26
Access Restriction	Open
Subject Keyword	Materials Electrochemistry Dssc Tio2 Nanostructures N719 Electrochemical Impedance Spectroscopy
Content Type	Text
Resource Type	Article

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