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EPISOL

cellule_photovoltaique_flexible

High output flexible solar inverter

With a conversion rate in the order of 15%, EPISOL is the first solar system with low cost generation potential, compatible with the market for integrated photovoltaic construction.
Unlike the current cells the EPISOL structure incorporates a thin layer of silicon on a flexible support. This is carefully built onto a conducting ceramic layer, which itself is placed on a supple metal layer. The latter can thus exercise the function of an electrode, and therefore simplify the system. The architecture obtained, both simple and able to be formed, makes it possible to combine the flexibility of the thin layers with the high outputs of traditional cells.

» Description and functionalities

Quasi-plate of silicon on a metal substrate

» Technology

The structure is based on a p/n junction in polycrystalline silicon, obtained by CVD deposition at a high temperature on a metal sheet which serves as both substrate and back electrode.

» Performances

1. Flexible photovoltaic structure, designed for applications that are not flat
2. High conversion output compared with thin layers and consequently limitation of production costs.
3. Technology based on an easily available non-toxic material, appropriate for building-integrated photovoltaic systems

» Laboratory

SIMAP réf. 100706_CHICHIGNOUD_Episol_ 26072012_1

» Target

Photovoltaic cells based on a band of crystalline Si in a thick layer (about 100 microns).

» Application area

- Building-integrated photovoltaics (BI-PV)
- PV for integration in automobiles, tramways, etc.

» Transfert offer

Licensing

» Collaboration sought

Collaboration with metallurgists and PV cell producers

» Interview with Guy Chichignoud

EPISOL makes it possible to produce solar cells at reduced cost but with a higher output than thin layer cells and appropriate for building-integrated photovoltaics (BI-PV).

For this type of application, due to a limit on the surface that can be equipped, it is important to maintain a high conversion output and limit production costs.