Which metal is used in photoelectric cells?

Answer: Typically, metals with low activation enthalpies of metals with easier emission are used in photoelectric cells. Caesium is one of the most well-liked metals with these characteristics in photoelectric cells (Cs). It belongs to group 1 of alkali metals.

Due to its ease of converting sunlight into electricity, caesium (Cesium) is widely and frequently used in photoelectric cells. The electrons in the caesium atoms become stimulated and begin to move around when exposed to direct sunlight. In the end, the electric current is produced by this electron flow. As a result, we can state that caesium is the catalyst of choice or ideality for the photoelectric process.