Cigs Solar Cell Working Principle

Solar cell is a device or a structure that converts the solar energy i e.

Cigs solar cell working principle.

Since they are a thin film technology they can be less costly than si cells. When light reaches the p n junction the light photons can easily enter in the junction through very thin p type layer the light energy in the form of photons supplies sufficient energy to the junction to create a number of electron hole pairs. This wavesol panel from ascent solar has. Solar cell any device that directly converts the energy of light into electrical energy through the photovoltaic effect.

Cigs solar cell in full copper indium gallium selenide solar cell thin film photovoltaic device that uses semiconductor layers of copper indium gallium selenide cigs to absorb sunlight and convert it into electricity although cigs solar cells are considered to be in the early stages of large scale commercialization they can be produced by using a process that has the potential to reduce. The solar source of light energy is described and quantified along with a review of semiconductor properties and the generation recombination and the basic equations of photovoltaic device physics. An ideal solar cell can be represented by a current source connected in parallel with a rectifying diode as shown in the equivalent circuit of fig. Production of cigs solar cells 6m.

The majority of solar cells are fabricated from silicon with increasing efficiency and lowering cost as the materials range from amorphous to polycrystalline to crystalline silicon forms. Solar cell theory materials fabrication design modules and systems are discussed. Thin film solar cells 15m. Because the material has a high absorption coefficient.

2 the corresponding i v characteristic is described by the shockley solar cell equation 1 i i p h i o e q v k b t 1 where k b is the boltzmann constant t is the absolute temperature q 0 is the electron charge and v is the. Particular attention is given to p n junction diodes including efficiency limits losses and measurements. The efficiency of cdte solar cells has reached just more than 15 percent and cigs solar cells have reached 20 percent efficiency. There are health concerns with the use of cadmium in thin film solar cells.

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. Working principle of solar cell. Cigs cells have up to 10 efficiency with similar durability as silicon solar cells. Thin film solar cells are finally becoming competitive.

In reality silicon wafer cells achieve on average 15 to 25 percent efficiency. 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. Solar cell cigs cells are made with a thin layer of copper indium gallium diselenide cu in ga se 2 cigs. Working principle of cigs solar cells 6m.