The allotropic forms of silicon range from a single crystalline structure to a completely unordered amorphous … See more

Passivated emitter rear contact (PERC) solar cells consist of the addition of an extra layer to the rear-side of a solar cell. This dielectric passive layer acts to reflect unabsorbed light back to the solar cell for a second abs… See more

Monocrystalline silicon (mono c-Si) is a form in which the crystal structure is homogeneous throughout the material; the orientation, lattice parameter, and electronic properties are constant throughout … See more

Polycrystalline silicon is composed of many smaller silicon grains of varied crystallographic orientation, typically >1 mm in size. This material can be synthesized easily by allowing liquid silicon to cool using a seed crys… See more

These allotropic forms of silicon are not classified as crystalline silicon. They belong to the group of thin-film solar cells.
Amorphous silicon (a-Si) has no long-range periodic order. The application of amorphou… See more