cigs solar cell structure
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. It is manufactured by depositing a thin layer of copper, indium, gallium and selenide on glass or plastic backing, along with electrodes on the front and back to collect current.
How Thin-film Solar Cells Work. The CdTe solar cell has a similar structure. One electrode is made from a layer of carbon paste infused with copper, the other from tin oxide (SnO 2) or cadmium stannate (Cd 2 SnO 4 ). The semiconductor in this case is cadmium telluride (CdTe), …
Copper Indium Gallium Diselenide Solar Cells. CIGS-based thin-film solar cell modules represent the highest-efficiency alternative for large-scale, commercial thin-film solar cells. Record small-area single-junction efficiency now tops 22% and several companies …
CIGS Solar Cells, Simplified. By Frank Andorka | January 8, 2014. not the final desirable crystal structure. Then, in a second step, the 4 th and often a 5 th material, Se and S are added in a “selenization/ (the CIGS layer) in a solar cell is where the action is. Here, the light is absorbed and, through the photovoltaic effect, an
CIGS solar cell. CIGS solar cells are also a fraction of the weight of silicon cells and can be manufactured without glass to be shatter-resistant. They can be integrated into vehicles such as tractor trailers, airplanes, and cars, as their low profile minimizes …
The image of the layers in the CIGS solar cell by scanning electron microscopy. The structure of the CIGS solar cells is shown in Figure 1. The CIGS solar cells consist of a number of films which are deposited onto a rigid or flexible substrate. The first film, typically molybdenum (Mo), serves as a nontransparent back-contact.
Cited by: 2
Solar cell is a key device that converts the light energy into the electrical energy in photovoltaic energy conversion. In most cases, semiconductor is used for solar cell material. The energy conversion consists of absorption of light (photon) energy producing electron–hole pairs in a semiconductor and charge carrier separation.
Copper indium gallium selenide. CIGS is a tetrahedrally bonded semiconductor, with the chalcopyrite crystal structure, and a bandgap varying continuously with x from about 1.0 eV (for copper indium selenide) to about 1.7 eV (for copper gallium selenide).
Band gap: 1.0–1.7 eV (x=0–1)
CIGS solar cell modules are produced by the research team at Uppsala Univer- sity and the process involves several dierent steps. First the Mo is sputtered onto the soda-lime glass. The Mo layer is patterned using a laser and in this way P1 is created. The Cu(In;Ga)Se2 layer is …
Established Manufacturing Process. Global Solar Energy’s factory is located in Tucson, Arizona and produces flexible solar cells, based on our proprietary CIGS thin film processes, innovative interconnect technology and module structures. Location: Tucson, Arizona / USA. Capacity: 50 MW/yr.