Polycrystalline silicon solar power generation system

What are crystalline silicon solar cells?

Crystalline silicon PV cells are the most popular solar cells on the market and also provide the highest energy conversion efficiencies of all commercial solar cells and modules. The structure of typical commercial crystalline-silicon PV cells is shown in Figure 1.

Is polycrystalline silicon a good solar cell?

Polycrystalline silicon PV cell structure. It will be assumed the ideal solar cell in this study. The contribution from the base to the photocurrent being greater than that of the emitter (Furlan and Amon, 1985). The present work will be taken account the base contribution assumed the center of the generation-recombination phenomena.

What is the temperature dependence of a polycrystalline silicon solar cell?

The temperature dependence of individual efficiencies (Absorption efficiency, Thermalization efficiency, Thermodynamic efficiency and Fill factor) and overall conversion efficiency of a polycrystalline silicon solar cell has been investigated in temperature range 10–50 °C. The all efficiencies present a decrease versus temperature increase.

What are the efficiencies of crystalline silicon solar cells?

The efficiencies of typical commercial crystalline silicon solar cells with standard cell structures are in the range of 16–18% for monocrystalline substrates and 15–17% for polycrystalline substrates. The substrate thickness used in most standard crystalline cells is 160–240 μm.

Are crystalline silicon PV cells a good choice?

Crystalline silicon cell modules have a long history of proven field operation and offer high efficiencies while presenting fewer resource issues than many competing technologies. As such, crystalline silicon PV cells are expected to be strongly represented in the future solar cell market.

How are monocrystalline solar cells made?

Monocrystalline solar cells are produced from pseudo-square silicon wafer substrates cut from column ingots grown by the Czochralski (CZ) process (see Figure 2). Polycrystalline cells, on the other hand, are made from square silicon substrates cut from polycrystalline ingots grown in quartz crucibles.