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Low-e glass comes in two main types hard coat and soft coat. Hard coat low-e glass is produced by depositing a thin layer of metal oxide onto the glass surface during the manufacturing process. This type of low-e glass is more durable and is typically used in commercial applications.

In practical work, solar cells are the basic devices that play the photovoltaic effect. When sunlight strikes the semiconductor material of the solar cell, the photons are absorbed and excited electrons in the semiconductor material. These excited electrons are subjected to an electric field, which forms an electric current.