Influence of PEO/PMMA polymer electrolyte composition on charge transport and recombination dynamics in dye-sensitized solar cells
Keywords:
Dye-sensitized solar cells, Polymer electrolyte, Electrochemical impedance spectroscopyAbstract
Electrolyte composition plays a decisive role in governing ionic transport, interfacial charge transfer, and recombination dynamics in dye-sensitized solar cells (DSSCs). In this work, a series of polymerbased electrolytes with systematically varied PEO/PMMA ratios were prepared and investigated using electrochemical impedance spectroscopy (EIS) and intensity-modulated photocurrent/photovoltage spectroscopy (IMPS/IMVS). The influence of polymer matrix composition on ionic conductivity, recombination resistance, electron lifetime, diffusion coefficient, and charge collection efficiency was quantitatively evaluated. The results demonstrate that optimized PEO/PMMA ratios can effectively prolong electron lifetime while maintaining sufficient ionic conductivity. The findings provide a direct electrochemical basis for electrolyte engineering in advanced DSSCs.
References
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
