Cigs Solar Cell Structure

Cigs solar cell with ibc structure and up to 19 7 efficiency scientists in the netherlands have demonstrated an interdigitated back contact copper indium gallium selenide solar cell with a.

Cigs solar cell structure.

Cigs solar cells feature a thin film of copper indium selenide and copper gallium selenide and a trace amount of sodium. Copper indium gallium diselenide cuin 1 x ga x se 2 cigs is one of the most promising materials for thin film solar cells. The newest generation of thin film solar cells uses thin layers of either cadmium telluride cdte or copper indium gallium deselenide cigs instead. A new solar cell structure was presented in this paper which consists of two p n junctions of copper indium gallium diselenide cigs and copper gallium diselenide cgs and double anti reflector layers of cadmium sulfide and zinc telluride.

A copper indium gallium selenide solar cell or cigs cell sometimes ci g s or cis cell is a thin film solar cell used to convert sunlight into electric power. Some literature reports have identified czts in the related stannite structure but conditions under which a stannite structure may occur are not yet clear. Cigs solar cells are made from a compound called copper gallium indium diselenide sandwiched between conductive layers. For example cigs can be deposited on substrates such as glass metal foils and polymers.

This material can be deposited on substrates such as glass plastic steel and aluminum and when deposited on a flexible backing the layers are thin enough to be allow full panel flexibility. Traditional solar cells use silicon in the n type and p type layers. Cigs is a versatile material that can be fabricated by multiple processes and implemented in different form factors. That cigs film acts as a direct bandgap semiconductor and forms a heterojunction as the bandgaps of the two different materials are unequal.

The main idea behind this analysis is the improvement of the device efficiency using materials cheaper than conventional cigs. From the chalcopyrite cigs structure one can obtain czts by substituting the trivalent in ga with a bivalent zn and iv valent sn which forms in the kesterite structure. The structure of the solar cell was designed and optimized. Cigs based thin film solar modules represent a high efficiency alternative for large scale commercial solar modules.

It is manufactured by depositing a thin layer of copper indium gallium and selenium on glass or plastic backing along with electrodes on the front and back to collect current.