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Updated: Feb 14, 2026
05:15
Flash Infrared Annealing for Perovskite Solar Cell Processing
Published on: February 3, 2021
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HDTMS-, Polybutadiene-, and Benzotriazole-Modified Polylactic-Based Resin for Solar Cells Encapsulation with
Ayad Aicha Aziza1, Elbar Mohamed2, Ievgen Zaitsev3
1Materials Science and Informatics Laboratory, Faculty of Science, University of Djelfa, Djelfa 17000, Algeria.
Molecules (Basel, Switzerland)
|February 13, 2026
Summary
A new polylactic acid (PLA)-based coating offers superior protection for solar cells. This advanced encapsulation enhances the stability and longevity of perovskite solar cells, showing significant potential for various photovoltaic technologies.
Area of Science:
- Materials Science
- Renewable Energy
- Chemical Engineering
Background:
- Solar cell encapsulation is crucial for device longevity and performance.
- Traditional encapsulants like ethylene-vinyl acetate (EVA) have limitations in protection and stability.
- Perovskite solar cells, particularly methylammonium lead iodide (MAPI), suffer from environmental degradation.
Purpose of the Study:
- To develop and evaluate a novel protective encapsulation layer for solar cells.
- To assess the performance of a modified polylactic acid (PLA)-based resin as a solar cell coating.
- To demonstrate the enhanced stability of perovskite films using this new encapsulation method.
Main Methods:
- Formulation of a PLA-based resin with hexadecyltrimethoxysilane (HDTMS), epoxidized polybutadiene (EPB), and benzotriazole.
- Application of the modified PLA resin as a final coating layer on isolated MAPI perovskite films.
- Evaluation of structural stability using X-ray diffraction (XRD) and optical absorbance using UV-Vis spectroscopy over two months.
Main Results:
- The developed PLA-based encapsulant exhibits high optical transparency and insulating properties, outperforming EVA.
- Encapsulated MAPI films retained 86% of their structural stability and 68% of their optical absorbance after two months.
- Uncoated MAPI films showed significant degradation under similar conditions, highlighting the effectiveness of the encapsulation.
Conclusions:
- The modified PLA resin serves as an effective environmental barrier for solar cells, significantly improving stability.
- The encapsulation methodology shows promise for various photovoltaic technologies beyond MAPI perovskites.
- This work provides a foundation for integrating advanced encapsulation into full solar cell devices.
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