Keyword search: battery plant , lithium battery factory , power bank works , lifepo4 battery mill , lithium forklift battery manufacturer

The conversion efficiency of solar cells will also decrease due to the recombination of electron hole pairs before they are effectively utilized. Irradiation of light with appropriate wavelengths on semiconductors will result in electron hole pairs. Therefore, the carrier concentration of the material under light irradiation will exceed the value under no light irradiation. If the light source is cut off, the carrier concentration will decay to their equilibrium value. This decay process is commonly referred to as a composite process. Below are several different composite mechanisms to be analyzed.

(1) Radiation recombination

Radiation recombination is the inverse process of light absorption, where electrons return from high-energy states to lower energy states while releasing light energy. This composite method is applicable in semiconductor lasers and light-emitting diodes, but it is not significant for silicon solar cells.

(2) Auger recombination

Auger recombination is the inverse process of collision ionization effect. The recombination of electrons and holes releases excess energy, which is absorbed by another electron. Subsequently, the electron that absorbs the excess energy relaxes back to its original energy state and releases phonons. Auger recombination is particularly significant in heavily doped materials. When the impurity concentration exceeds 1017cm-3, Auger recombination becomes the most critical recombination process.

(3) Composition through traps

Impurities and defects in semiconductors will exhibit allowable energy levels in the bandgap. These defect energy levels cause a very effective two-stage recombination process. During this process, the electron relaxes from the conduction band level to the defect level, and then relaxes to the valence band, resulting in recombination with a hole

(4) Surface recombination

The surface can be said to be a place in the crystal structure where there are quite serious defects. There are many allowable energy states at the surface where energy is located within the bandgap. Therefore, the mechanism described above is prone to recombination at the surface.

In practical batteries, the combined use of the above composite loss factors results in spectral response. The task of battery designers is to overcome these losses and improve battery performance. The characteristics of battery design reflect the characteristics of batteries, and the different design characteristics of batteries also distinguish various commercial components in the market.

Lithium ForkLift Batteries ,Ensure Quality

Our lithium battery production line has a complete and scientific quality management system

Ensure the product quality of lithium batteries

Years of experience in producing lithium forklift batteries

Focus on the production of lithium batteries

WE PROMISE TO MAKE EVERY LITHIUM BATTERY WELL

We have a comprehensive explanation of lithium batteries

QUALIFICATION CERTIFICATE

THE QUALITY OF COMPLIANCE PROVIDES GUARANTEE FOR CUSTOMERS

MULTIPLE QUALIFICATION CERTIFICATES TO ENSURE STABLE PRODUCT QUALITY

Providing customers with professional and assured products is the guarantee of our continuous progress.

Applicable brands of our products