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The importance of anchoring ligands of binuclear sensitizers on electron transfer processes and photovoltaic action in dye-sensitized solar cells
Abstract
The relatively low photon-to-current conversion efficiency of dye-sensitized solar cells is their major drawback limiting widespread application. Light harvesting, followed by a series of electron transfer processes, is the critical step in photocurrent generation. An in-depth understanding and fine optimization of those processes are crucial to enhance cell performance. In this work, we synthesize two new bi-ruthenium sensitizers with extended anchoring ligands to gain insight into underlying processes determining photovoltaic action mechanisms. The structure of the compounds has been confirmed, and their properties have been thoroughly examined by various techniques such as NMR, IR, elemental analysis UV–Vis, cyclic voltammetry, and electroabsorption. The experimental characterization has been supported and developed via extensive quantum-chemical calculations, giving a broad view of the presented molecules’ properties. Finally, the DSSC devices have been assembled utilizing obtained dyes. The photovoltaic and EIS measurements, combined with performed calculations and fundamental dyes characterization, unraveled an intramolecular electron transfer as an initial step of the electron injection process at the dye/semiconductor interface. The overall photovoltaic action mechanism has been discussed. Our study demonstrates the significance of the anchoring group architecture in the molecular design of new sensitizers for DSSC applications.
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Authors (10)
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Aleksandra Bartkowiak
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Oleksandr Korolevych
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Błażej Gierczyk dr hab.
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Alberto Bossi dr
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Maciej Klein
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Łukasz Popenda dr
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Małgorzata Makowska-janusik dr hab.
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Maciej Zalas dr hab.
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1038/s41598-023-44015-8
- License
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Scientific Reports
no. 13,
ISSN: 2045-2322 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Bartkowiak A., Korolevych O., Gierczyk B., Pelczarski D., Bossi A., Klein M., Popenda Ł., Stampor W., Makowska-Janusik M., Zalas M.: The importance of anchoring ligands of binuclear sensitizers on electron transfer processes and photovoltaic action in dye-sensitized solar cells// Scientific Reports -,iss. 1 (2023),
- DOI:
- Digital Object Identifier (open in new tab) 10.1038/s41598-023-44015-8
- Sources of funding:
-
- IDUB
- Verified by:
- Gdańsk University of Technology
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