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Anti-Reflective Zeolite Coating for Implantable Bioelectronic Devices
Giuseppe Oliva1, Maria Giovanna Bianco2, Antonino S Fiorillo1
1BATS Laboratory, Department of Health Sciences, Magna Græcia University of Catanzaro, Viale Europa, 88100 Catanzaro, Italy.
Bioengineering (Basel, Switzerland)
|August 25, 2022
Summary
This study developed simple anti-reflective coatings (ARCs) using zeolites for solar cells. These coatings enhance photovoltaic cell efficiency by reducing light reflection, particularly for implantable medical devices.
Area of Science:
- Materials Science
- Nanotechnology
- Renewable Energy
Background:
- Solar cell efficiency is limited by superficial light reflection.
- Anti-reflective coatings (ARCs) are crucial for improving photovoltaic (PV) energy conversion.
- Nanoporous materials offer tunable refractive indices for reduced reflection.
Purpose of the Study:
- To investigate zeolite-based anti-reflective coatings (ARCs) for commercial PV cells.
- To develop a simple, chemical-free deposition method for ARCs.
- To assess the impact of LTA zeolites (3A and 4A) on PV cell performance.
Main Methods:
- Deposition of ARCs using two types of Linde Type A (LTA) zeolites (3A and 4A) on commercial PV cells.
- Characterization of coatings fabricated without chemicals or high-temperature calcination.
- Evaluation of optical properties and photovoltaic performance under radiation (470-610 nm).
Main Results:
- Substantial enhancement of the fill factor (FF) in PV cells with zeolite ARCs, reaching over 40%.
- Significant FF improvements at 590 nm (22%) and 610 nm (10%), relevant for implantable devices.
- Coating thickness and roughness varied based on zeolite powder morphology (3A resulted in thicker, rougher coatings).
Conclusions:
- Zeolite-based ARCs offer a simple and effective method to improve PV cell efficiency.
- The developed technique is suitable for applications requiring enhanced light transmission, including implantable medical devices.
- Material morphology significantly influences ARC properties and performance.
