What are HJT solar panels?

Come let us explore more about them. These are also known as Silicon heterojunctions (SHJ) or Heterojunction with Intrinsic Thin Layer (HIT) solar panels. These are a group of HJT solar cells that use advanced photovoltaic technology. Don’t be confused about what is heterojunction technology.

What are heterojunction solar cells (HJT)?

Heterojunction solar cells (HJT), variously known as Silicon heterojunctions (SHJ) or Heterojunction with Intrinsic Thin Layer (HIT), are a family of photovoltaic cell technologies based on a heterojunction formed between semiconductors with dissimilar band gaps.

Why are monofacial HJT solar cells better than heterojunction solar panels?

This three-step process is the reason why monofacial HJT solar cells have achieved solar efficiencies of up to 26.7%. Heterojunction technology is based on traditional c-Si panels, improving the recombination process and other major flaws.

Who makes HJT solar cells?

The HJT production concept was developed by SANYO Electric in the 1980s (SANYO was acquired by Panasonic in 2009). SANYO was the first company to commercially produce solar cells made of amorphous silicon (a-Si).

What is HJT bifacial solar?

HJT technology was first developed in the early 1990s, but it became popular these last decades, which explains the 5% market share and higher production costs, but this is only a temporary setback that is expected to be surpassed in the near future. The structure of bifacial panels is similar to the heterojunction solar panel.

Which material is used for HJT solar cells?

There are two varieties of c-Si, polycrystalline and monocrystalline silicon, but monocrystalline is the only one considered for HJT solar cells since it has a higher purity and therefore more efficient. Amorphous silicon is used in thin-film PV technology and is the second most important material for manufacturing heterojunction solar cells.