The Effect of Chemical and Natural Dyes on the Efficiency of Solar Cells

Abstract

Effect of chemical and physical dyes on the efficiency of solar cells Gretzel cells are a class of low-cost solar cells belonging to the group of thin-film solar cells. It rests on a plate of semiconductors placed between a light-sensitive anode and an electrolyte. This cell was invented by Michael Gretzel and Brian O'Regan in 1991, and in 2010 Gretzel received the Millennium Technology Prize for it. Since it is made of low-cost materials and does not require precise hardware to manufacture, this cell has become technically attractive. Likewise, they can be less expensive to manufacture than older solid-cell designs. It can also be designed in the form of flexible panels and is mechanically strong, and thus does not require a system to protect against minor accidents such as tree strikes. Although their conversion efficiency is lower than the best thin-film cells, in theory, their price/performance ratio is high enough to allow them to compete with fossil fuels for electricity generation by achieving grid parity. It is now expected to spread its commercial applications.