Standard photovoltaic cells require extremely pure polysilicon, which is made from quartz - a mineral comprised of silicon and oxygen (SiO2).
How can quartz glass help drive down the cost of solar devices?
It's also helping researchers drive down the cost of solar devices. Here's how. Quartz glass is used in many facets of photovoltaic (PV) cell manufacturing, in light sources, reaction chambers, and tools used in the production of solar cells, thin films, and silicon wafers.
In our earlier article about the production cycle of solar panels we provided a general outline of the standard procedure for making solar PV modules from the second most abundant mineral on earth – quartz.
What is quartz glass used for?
Quartz glass is used in many facets of photovoltaic (PV) cell manufacturing, in light sources, reaction chambers, and tools used in the production of solar cells, thin films, and silicon wafers. The material's stability, chemical purity, transmissivity to light, and heat resistance has made quartz vital to the production of semiconductors.
How are solar cells made?
The production process from raw quartz to solar cells involves a range of steps, starting with the recovery and purification of silicon, followed by its slicing into utilizable disks – the silicon wafers – that are further processed into ready-to-assemble solar cells.
What is the production chain from quartz to solar cells?
In the PV industry, the production chain from quartz to solar cells usually involves 3 major types of companies focusing on all or only parts of the value chain: 1.) Producers of solar cells from quartz, which are companies that basically control the whole value chain. 2.)
Quartz used in the production of solar cells is nearly inert, very resilient, and able to withstand the high temperatures found in semiconductor production and evaluation processes. To be considered microelectronics grade (eg-Si), silicon must be of very high purity, with an impurities level of less than 1 part per billion.