What are the different types of tandem cells?

Tandem cells are a type of solar cell that uses two or more individual cells in series to form a single, larger cell. They are commonly used in low-power applications where high-efficiency is not necessary, such as residential and commercial rooftop installations. There are several different types of tandem cells, each with their own unique characteristics and applications.

1. Double-junction tandem cells

Double-junction tandem cells use two photovoltaic layers with different bandgaps to absorb different wavelengths of light. This allows them to have high efficiency in both the shortwave and longwave regions of the solar spectrum, making them particularly suitable for use in high-efficiency solar panels. However, they are more complex and expensive to manufacture than other types of tandem cells.

2. Monolithic tandem cells

Monolithic tandem cells are made up of two or more individual solar cells that are deposited on the same substrate. This allows for a more cost-effective and simple manufacturing process, but can also result in issues such as electrical mismatch between the cells, which can affect their performance and reliability.

3. Stacked tandem cells

Stacked tandem cells are made up of two or more individual cells that are stacked on top of each other. This allows for a more compact design,stackable solar batteries but can also result in issues such as mechanical stress and degradation due to exposure to environmental factors.

4. Hybrid tandem cells

Hybrid tandem cells combine two or more different types of solar cell in series to form a single cell. For example, they can use a silicon cell in combination with a thin-film cell, which can result in a more cost-effective and efficient solar panel. However, hybrid tandem cells can be more complex and challenging to manufacture than other types of tandem cell.

5. Multi-junction tandem cells

Multi-junction tandem cells use multiple photovoltaic layers with different bandgaps to absorb different wavelengths of light. This allows them to have high efficiency over a wider range of the solar spectrum, making them particularly suitable for use in high-efficiency solar panels that require greater spectral flexibility. However, they are more complex and expensive to manufacture than other types of tandem cells.

In summary, the different types of tandem cells have their own unique characteristics and applications, depending on the specific requirements of the application and the desired performance and cost-effectiveness of the solar panel. When selecting a type of tandem cell for a particular application, it is important to consider the specific requirements of the application, as well as the available technology and manufacturing capabilities.

related articles：

Why Are Tandem Solar Cells Better?

What is a Tandem Solar Cell Configuration?

What is Tandem Organic Solar Cells?