| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Miettunen, Kati
University of Turku
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Simplifying perovskite solar cell fabrication for materials testing : how to use unetched substrates with the aid of a three-dimensionally printed cell holder
- 2023Comparison of experimental separation methods for silicon solar panels
- 2023Bottlenecks in Perovskite Solar Cell Recycling
- 2022Encapsulation of commercial and emerging solar cells with focus on perovskite solar cellscitations
- 2022Encapsulation of commercial and emerging solar cells with focus on perovskite solar cellscitations
- 2022Plant-Based Structures as an Opportunity to Engineer Optical Functions in Next-Generation Light Managementcitations
- 2022Plant-Based Structures as an Opportunity to Engineer Optical Functions in Next-Generation Light Managementcitations
- 2019Nanocellulose and Nanochitin Cryogels Improve the Efficiency of Dye Solar Cellscitations
- 2019Nanocellulose and Nanochitin Cryogels Improve the Efficiency of Dye Solar Cellscitations
- 2018Biobased aerogels with different surface charge as electrolyte carrier membranes in quantum dot-sensitized solar cellcitations
- 2018Application of dye-sensitized and perovskite solar cells on flexible substratescitations
- 2016Quasi-solid electrolyte with polyamidoamine dendron modified-talc applied to dye-sensitized solar cellscitations
- 2014Low Cost Ferritic Stainless Steel in Dye Sensitized Solar Cells with Cobalt Complex Electrolytecitations
- 2010Stability of Dye Solar Cells with Photoelectrode on Metal Substratescitations
- 2009Segmented Cell Design for Improved Factoring of Aging Effects in Dye Solar Cellscitations
- 2009Nanostructured dye solar cells on flexible substrates-Reviewcitations
Places of action
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article
Nanocellulose and Nanochitin Cryogels Improve the Efficiency of Dye Solar Cells
Abstract
<p>Biobased cryogel membranes were applied as electrolyte holders in dye solar cells (DSC) while facilitating carrier transport during operation. They also improved device performance and stability. For this purpose, cellulose nanofibers (CNF), TEMPO-oxidized CNF (TOCNF), bacterial cellulose (BC), and chitin nanofibers (ChNF) were investigated. The proposed materials and protocols for incorporating the electrolyte, via simple casting, avoided the typical problems associated with injection of the electrolyte through filling holes, a major difficulty especially in manufacturing large area cells. Owing to the fact that cryogel membranes did not require any orifice for injection, they were effective in minimizing leakage and in retaining liquid electrolyte. The results indicated the reduction of performance losses compared to conventional electrolyte filling, likely due to the better spatial distribution of electrolyte. DSCs based on BC cryogels had an initially higher performance and similar stability compared to those of the reference cells. When compared to reference cells, CNF and ChNF cryogels produced higher initial performance, but they underwent a faster degradation. The difference in stability was attributed to the effect of residual components, including lignin in CNF and proteins in ChNF, as demonstrated in bleaching experiments. TOCNF indicated a relatively poor performance, most likely because of residual aldehydes. Overall, we offer a comprehensive evaluation based on current-voltage (IV) profiles under simulated sunlight, incident photon-to-charge carrier efficiency (IPCE), electrochemical impedance spectroscopy (EIS), and color image processing, together with accelerated DSC stability tests, to unveil the effects of new membrane-based assembly. Our results give guidelines for future developments related in particular to the effects of the tested biomaterials on device stability.</p>