Maxwell, Cybrid utilize light conversion film to enhance HJT module power output

• Solar cell production equipment vendor Suzhou Maxwell Technologies has boosted the power of a 60-cell heterojunction (HJT) module by more than 5W thanks to the addition of a light conversion film.

With a collaboration with PV backsheet supplier Cybrid Technologies, Maxwell has actually established a new module including a film that transforms ultraviolet light with a low photon response for HJT solar cells into blue or red light with a greater photon response, thereby raising the power.

According to Maxwell, the current of HJT cells is lower than that of ordinary ones due to the fact that the clear carrying out oxide (TCO) film and also the amorphous silicon film absorb ultraviolet rays. Its new advancement aims to make up for this shortcoming.

The firm stated that for HJT technology, light conversion products absorb ultraviolet light and convert it into visible light with nearly 100% responsivity, boosting the current of solar cells and improving the power of modules, while the converted photons have no negative influence on the interface passivation of HJT items.

A module featuring light conversion films combines the advantages of commonly utilized extremely permeable films and also UV cut-off films, according to Maxwell. It is claimed to have the same initial power as modules with very permeable films and also equals modules with UV cut-off films in regards to power destruction.

Data from an experimental power plant featuring the new modern technology suggests that light conversion products have a fantastic application prospect in HJT products, stated Maxwell, which is contacting market players to jointly optimise light conversion products and boost the weather condition resistance of light conversion films.

It was revealed last month that Maxwell as well as Australian solar technology start-up SunDriver recorded a conversion performance of 26.07% with a commercial-size HJT cell. The companies claimed the result "demonstrates the future possibility for HJT solar cell effectiveness exceeding 26% in automation".