Schematic diagram of power generation of polycrystalline silicon solar cells

What is the basic structure of crystalline silicon solar cells?

Basic structure of crystalline silicon solar cells. The fabrication of crystalline silicon solar cells consists of three main processes, i.e., preparing a junction by diffusion, vapor deposition of an anti-reflection film, and electrode preparation).

Do polycrystalline silicon solar cells apply to standardized processes?

Polycrystalline silicon solar cells may not apply to standardized processes for certain special properties. Some alternatives to the standard process have been proposed, while they have not been adopted for their relatively high cost. People are still looking for a solution, two of which are not the same as the single crystalline silicon process.

What is the device structure of a silicon solar cell?

The device structure of a silicon solar cell is based on the concept of a p-n junction, for which dopant atoms such as phosphorus and boron are introduced into intrinsic silicon for preparing n- or p-type silicon, respectively. A simplified schematic cross-section of a commercial mono-crystalline silicon solar cell is shown in Fig. 2.

Can polycrystalline silicon solar cells convert solar energy into Elec-trical energy?

The technology is non-polluting and can rather easily be implemented at sites where the power demand is needed. Based on this, a method for fabricating polycrystalline silicon solar cells is sought and a thorough examination of the mechanisms of converting solar energy into elec-trical energy is examined.

What are the characteristics of industrialized silicon solar cells?

However, existing industrialized silicon solar cells exhibit simple structures. The single crystalline silicon with the Czochralski method or the polycrystalline silicon with the casting method has been adopted on a large scale. Generally, these silicon materials are boron diffusion doped, with a resistivity of 0.5–0.6 Ω cm.

What are the assumptions of crystalline silicon solar cells?

Schematic diagram of crystalline silicon solar cells. For ideal solar cells, four main assumptions are proposed: there exists no transport loss, and the body recombination is minimal. Under the mentioned assumptions, the minimum Auger recombination and good free carrier collection can be obtained with the intrinsic substrate material.