Solar battery electrolyte and application thereof

Abstract

The invention provides a solar battery electrolyte and an application thereof, belonging to the technical field of solar batteries. The electrolyte can be liquid, jellylike or quasi-flow colloid. The invention is characterized in that the electrolyte at least comprises S<2-> / Sx<2-> redox couples, and organic cation solvent matched with S<2-> / Sx<2-> or a mixture of solvent and gelatinizer, wherein x is an integer between 2 and 6. The invention also relates to an application of the electrolyte in dye-sensitized solar batteries and quantum point batteries. By utilizing the S<2-> / Sx<2-> redox couple electrolyte into the dye-sensitized solar batteries and quantum point solar batteries, most of flow concentration materials can be directly used and can not be corroded by the electrolyte, thus the preparation process of batteries can be greatly simplified, the production cost can be lowered, and the performance of the prepared battery is approximate to that of the battery in the prior art.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a solar cell electrolyte and its application. Background technique [0002] The electrolyte is one of the key parts of dye-sensitized solar cells and quantum dot solar cells, where the redox couple plays the role of electron transfer. In dye-sensitized solar cells and quantum dot solar cells, the oxidized components in the electrolyte undergo a reduction reaction under the action of the second electrode catalyst to form reduced components, and the reduced components are combined with the oxidized dyes in the first electrode. Molecules or quantum dots react to generate oxidation state components. After the continuous cycle of redox pairs in the electrolyte, the solar cell continuously converts light energy into electrical energy, while the composition of the redox pairs in the electrolyte does not change. [0003] At present, the most commonly used redox couple in...

AI Technical Summary

Problems solved by technology

[0006] Traditional quantum dot battery electrolytes use I - / I 3 - , although I - / I 3 - The system is an ideal material for quantum dot regeneration in terms of kinetics, and it can also effectively inhibit the recombination of excited state electrons in the electrolyte system, but I - / I 3 - The system corrodes most metal materials and semiconductor materials. In quantum dot batteries, I - / I 3 - The system corrodes the quantum dot battery, causing the current to drop rapidly

Images