Read Solar Mango Innovation Blog Post on Multi-junction solar cells HERE
A heterojunction is an interface that occurs between two layers or regions of dissimilar crystalline semiconductors.
These semiconducting materials have unequal band gaps as opposed to a homojunction.
Silicon heterojunction technology (Si-HJT) is a popular topic in crystalline silicon photovoltaic as it allows for solar cells with energy conversion efficiencies above 20 %, even at industrial production level. These solar cells consist of thin amorphous silicon layers on monocrystalline silicon wafers.
As of mid-2016, heterojunction cells are still predominantly in research and pilot stages and are not deployed commercially on a large scale anywhere in the world.
Source: Heterojunction Solar Cells from Solar Mango’s Solar Dictionary
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