Solar lights have entered everyone's field of vision with labels such as new energy, environmental protection, and power saving. So what kind of solar lights are practical? The answer is to make solar lights with silicon as the main material to make solar photovoltaic cells. Why is this?

Solar photovoltaic cells are made of semiconductors. There are many types of semiconductors, why are silicon solar photovoltaic cells alone?

Silicon is not the earliest material used to manufacture semiconductor devices, the earliest is germanium. In 1947 Bardeen, Brattain and Shockley used germanium to make the world's first transistor. However, since the early 1960s, germanium was quickly replaced by silicon.

The reason why silicon has become the dominant material is that silicon has the following advantages
1. Silicon is very easy to oxidize and form a high-quality silicon dioxide (SiO2) insulating layer. Silicon dioxide is an excellent barrier for the selective diffusion process of IC manufacturing.
2. The band gap of silicon is larger than that of germanium, which means that silicon devices have a larger operating temperature range than the corresponding germanium devices.
3. Silicon is rich in resources and has a huge stock in nature. It is low in price. Because silicon has these advantages, solar photovoltaic cells use silicon as a raw material.

The above characteristics of silicon make silicon the primary material for solar photovoltaic cells. Silicon has some characteristics that make solar photovoltaic cells more practical. This makes almost all practical solar lights on the market use silicon as the battery raw material. The conversion rate of solar panels of Bigenjoy Lighting is even higher! Solar lights are more practical.