C6B is a type of semiconductor that is made of compounds of Boron (B) and Carbon (C). It is a type of group VI-VI compound semiconductor, which is a part of a larger family of III-VI semiconductors. These semiconductors have good optical, electrical, and thermal properties. They can be used in a variety of applications such as light-emitting diodes (LEDs), photodetectors, light-emitting transistors (LETs), photovoltaic cells, photocatalysis, and more. They are also efficient in capturing new energies such as sunlight and can be used to create new and efficient solar-based energy solutions.