Which materials are typically utilized to provide both a transparent front surface and a robust weatherproof backing for PV modules, respectively?
Understand the Problem
The question is asking about the materials used in solar cell construction, specifically for the transparent front surface and the weatherproof backing. It requires knowledge of solar panel design and material properties to determine the correct combination that provides both transparency for sunlight capture and durability against environmental factors.
Answer
Glass is used for the front, and a polymer like Tedlar is used for the weatherproof backing.
Typically, the transparent front surface of PV modules is made of glass, while the robust, weatherproof backing is often made of a material like Tedlar (Polyvinyl fluoride) or other polymer composites.
Answer for screen readers
Typically, the transparent front surface of PV modules is made of glass, while the robust, weatherproof backing is often made of a material like Tedlar (Polyvinyl fluoride) or other polymer composites.
More Information
The front glass is usually tempered to withstand environmental conditions, while the back sheet protects against UV radiation, humidity, and vapor.
Tips
Pay attention to specific materials used for front and back layers as they serve different purposes. Avoid confusing the encapsulant material (like EVA) with the front or back surface materials.
Sources
- Most PV bulk silicon PV modules consist of a transparent top surface, an encapsulant, a rear layer and a frame around the outer edge. In most modules, the top surface is glass, the encapsulant is EVA (ethyl vinyl acetate) and the rear layer is Tedlar, as shown below. - pveducation.org
- Types of Solar Backsheet in Solar Panel - Vishakha Renewables - vishakharenewables.com
- Crystalline Silicon Module - an overview | ScienceDirect Topics - sciencedirect.com
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