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Updated: Mar 27, 2026
Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells
Published on: June 28, 2017
Multifunctional PVC-based metal oxide/graphene composites for high-performance DSSC counter electrodes
Hend A Ezzat1, M A Sebak2, A K Aladim2
1Nanotechnology Unit, Space Lab, Solar and Space Research Department, National Research Institute of Astronomy and Geophysics (NRIAG), Helwan, Cairo, 11421, Egypt. hend.ezzat@nriag.sci.eg.
This study developed cost-effective polyvinyl chloride (PVC)-based nanocomposites with ZnO nanoparticles and graphene as high-performance counter electrodes for dye-sensitized solar cells (DSSCs). The new PVC/ZnO/G material significantly boosted solar cell efficiency, offering a sustainable alternative to platinum electrodes.
Area of Science:
- Materials Science
- Nanotechnology
- Renewable Energy
Background:
- Cost-effective and multifunctional counter electrodes (CEs) are crucial for advancing dye-sensitized solar cells (DSSCs).
- Platinum (Pt) is a common CE material but is expensive and scarce.
- Developing alternative CE materials is essential for the commercial viability of DSSCs.
Purpose of the Study:
- To design and develop novel, high-performance, and cost-effective counter electrode materials for DSSCs.
- To investigate the synergistic effects of ZnO nanoparticles and graphene within a PVC matrix for enhanced electrochemical and photovoltaic properties.
- To establish a rational design framework combining computational simulations and experimental validation for polymer-based nanocomposite CEs.
Main Methods:
- Computational screening using density functional theory (DFT) to identify optimal metal oxide candidates (e.g., ZnO).
- Experimental synthesis and characterization of polyvinyl chloride (PVC)-based nanocomposites incorporating ZnO nanoparticles (NPs) and graphene (G).
- Electrochemical analysis (electrochemical impedance spectroscopy) and photovoltaic performance testing (J-V characterization) of the fabricated DSSCs.
Main Results:
- ZnO was computationally identified as a promising metal oxide for CE applications.
- PVC/ZnO/G nanocomposites exhibited enhanced conductivity (66 S/m), larger pore size (2.97 μm), and increased surface roughness (Ra = 8.5 μm).
- The optimized PVC/ZnO/G counter electrode achieved a power conversion efficiency (PCE) of 7.547%, a significant improvement over pristine PVC (4.697%).
Conclusions:
- The synergistic combination of ZnO NPs and graphene in a PVC matrix creates a highly effective counter electrode material for DSSCs.
- The developed PVC/ZnO/G nanocomposite offers a scalable, cost-effective, and high-performance alternative to traditional Pt-based electrodes.
- This study demonstrates a successful integrated computational and experimental approach for designing advanced materials for next-generation solar cells.
