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.

Cigs solar cell structure.

For example cigs can be deposited on substrates such as glass metal foils and polymers. That cigs film acts as a direct bandgap semiconductor and forms a heterojunction as the bandgaps of the two different materials are unequal. Cigs solar cells are made from a compound called copper gallium indium diselenide sandwiched between conductive layers. An alternative zno cds cigs si structure has been proposed using solar cell capacitance simulator scaps.

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. 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. 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. The newest generation of thin film solar cells uses thin layers of either cadmium telluride cdte or copper indium gallium deselenide cigs instead.

Traditional solar cells use silicon in the n type and p type layers. 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. Cigs is a versatile material that can be fabricated by multiple processes and implemented in different form factors. Cu in 1 x ga x se 2 films were deposited by a one step radio frequency magnetron sputtering process at low substrate temperature.

The main idea behind this analysis is the improvement of the device efficiency using materials cheaper than conventional cigs. The present contribution reports on the performances of ultra thin chalcopyrite cu in ga se cigs solar cells. Cigs based thin film solar modules represent a high efficiency alternative for large scale commercial solar modules. Copper indium gallium diselenide cuin 1 x ga x se 2 cigs is one of the most promising materials for thin film solar cells.

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.