The solar energy technologies office supports research and development projects that increase the efficiency and lifetime of hybrid organic inorganic perovskite solar cells as well as evaluate new materials for them.
Perveskite solar panel.
A perovskite is any type of material that has the same crystal structure as calcium titanium oxide catio 3.
Perovskite solar cells have shown remarkable progress in recent years with rapid increases in conversion efficiency from reports of about 3 in 2006 to over 25 in 2020.
Perovskite is a thin flexible and lightweight crystal structure.
Perovskite has a good tolerance of defects and impurities in contrast to silicon so the material can be deposited simply by printing or spraying.
The general chemical formula for perovskite compounds is abx 3 where a and b are cations and x is the bonding anion see how it looks like catio 3.
The material can be cheaply laminated onto the glass layer of solar panels from a solution.
Within solar lead is often the dominant metal used in perovskites.
Perovskite solar cells hold an advantage over traditional silicon solar cells in the simplicity of their processing and their tolerance to internal defects.
Traditional silicon cells require expensive multi step processes conducted at high temperatures 1000 c under high vacuum in special cleanroom facilities.
Home perovskite solar cells.