How can you increase the efficiency of a dye-sensitized solar cell?

How can you increase the efficiency of a dye-sensitized solar cell?

To improve the efficiency of dye-sensitized solar cells (DSSCs),light absorption properties of organic dye must be tuned to have a maximum response throughout visible and near infra-red spectrum.

What is the efficiency of dye-sensitized solar cell?

The efficiency of existing DSSCs reaches up to 12%, using Ru(II) dyes by optimizing material and structural properties which is still less than the efficiency offered by first- and second-generation solar cells, i.e., other thin-film solar cells and Si-based solar cells which offer ~ 20–30% efficiency.

What materials are used to dye-sensitized solar cells?

A modern n-type DSSC, the most common type of DSSC, is composed of a porous layer of titanium dioxide nanoparticles, covered with a molecular dye that absorbs sunlight, like the chlorophyll in green leaves. The titanium dioxide is immersed under an electrolyte solution, above which is a platinum-based catalyst.

Which semiconductor material is mostly used in dye-sensitized solar cells?

ruthenium complexes
So far, ruthenium complexes and porous TiO2 have mostly been used as sensitizers and the semiconductor, respectively, in dye-sensitized solar cells [6].

What electrolyte is used in DSSC?

In addition, using a solvent-free ionic liquid (imidazolium salts) electrolyte, (137) the lifetime of the DSSC for outdoor use was estimated at over 15 years. The acid–base (or donor–acceptor) interaction between solvents and other components is an important factor affecting the photovoltaic performance of DSSCs.

What is the role of electrolyte in dye sensitized solar cells?

The electrolyte is one of the most crucial components in DSSCs; (36) it is responsible for the inner charge carrier transport between electrodes and continuously regenerates the dye and itself during DSSC operation.

Which of the following materials can be used as solar cells materials?

Silicon is the most widely used material for solar cells due to its abundance in the earth’s crust.

How do dye-sensitized solar cells work?

How does DSSC work?

1. The dye is the photoactive material of DSSC, and can produce electricity once it is sensitized by light.
2. The dye catches photons of incoming light (sunlight and ambient artificial light) and uses their energy to excite electrons, behaving like chlorophyll in photosynthesis.