交大开元太阳能

Solar components can be composed of a variety of different sized square solar cells, also known as the solar array. The solar panel power output capacity is closely related to its size, the larger the area, in the same light conditions, the greater the output power. Solar panels from the main advantages and disadvantages of the open circuit voltage and short-circuit current of the two indicators to measure.

The types of solar panels
(1) single crystal silicon solar cells

At present, single crystal silicon photovoltaic solar cells conversion efficiency of 15% to a maximum of 24%, which is currently all kinds of solar cells in the highest photoelectric conversion efficiency, but much of the production costs, so that it can not be A large number and wide range of general use. As the general use of silicon resin for water-proof glass, as well as packaging, so rugged, life in general up to 15 years, up to 25 years.

(2) polycrystalline silicon solar cells

Polycrystalline silicon solar cell production process and almost single crystal silicon solar cells, but it's polycrystalline silicon photovoltaic solar cells conversion efficiency will be a lot lower, the photoelectric conversion efficiency of about 12% (July 1, 2004 Japan Sharp efficiency of the market for 14.8 percent of the world's highest efficiency silicon solar cells). From the production cost, than the single crystal silicon solar cells to a number of cheap, simple materials, to save power consumption, lower overall production costs, thus a large number of development. In addition, the polycrystalline silicon solar battery life is also better than the single crystal silicon solar cells short. From the cost, single crystal silicon solar cell was also slightly better.
　 　 　 　 　 　 　 　 　 　 　 　 　 　
(3) amorphous silicon solar cells

Amorphous silicon solar cells in 1976 is the emergence of a new type of thin film solar cell type, with single crystal silicon and polycrystalline silicon solar cell production method is completely different, and greatly simplify the process, very little silicon material consumption, lower power consumption, The main advantage is in low light conditions can also generate electricity. Amorphous silicon solar cells, but the main problems photoelectric conversion efficiency is low, the current international advanced level for about 10%, and the lack of stability, with the extension of the time, the conversion efficiency of its decay.
　 　 　 　 　 　 　 　 　 　 　 　 　 　
(4) Multi-compound solar cells

Multiple compounds refers to the solar cell is not a single element semiconductor materials made of solar cells. Now a wide variety of national studies, yet the majority of industrial production, mainly as follows:
       a) CdS solar cell
       b) gallium arsenide solar cells
       c) copper indium selenium solar cells (a new multi-band gap gradient Cu (In, Ga) Se2 thin film solar cell)
Cu (In, Ga) Se2 is an excellent material to absorb sunlight, with a gradient band gap (conduction band and valence band can be the difference between) Multi-semiconductor materials, you can expand the scope of solar energy absorption spectrum, thus improving the photoelectric Conversion efficiency. It can be the basis for the design of photoelectric conversion efficiency than silicon thin film solar cells improved thin-film solar cells. To achieve Optoelectronic conversion rate of 18%, and such film solar cells so far found no performance degradation caused by light radiation effect (SWE), its photoelectric conversion efficiency than today's commercial film solar panels to increase about 50 to 75% in film solar cells in the world's highest level of photoelectric conversion efficiency.

The use of solar panels

(1) of solar panels using high-crystal silicon material, and use high-intensity, the light of the strong performance of solar glass, as well as dedicated high-performance, ultra-violet radiation resistance of a closed laminated material from the solar panels, resistant to ice and snow Strip. Drastic changes in temperature in the harsh environment under normal use, the use of the process to convert solar energy into electrical energy; Therefore, as long as the sun can power generation, is an advanced, environmentally-friendly non-polluting high-tech products.

(2) solar photovoltaic systems used in any equipment, such as lighting and household appliances, or a variety of small, medium and large solar power station. According to the application of user requirements needed to design and shape of the power, solar panels can be used in series or in parallel, mounted on the sun directly without any shelter location, with a fixed support. Installation direction slightly tilted, according to the dumping point of view and to determine where the location will be solar panels facing the sun is on the installation of point of view (referring to solar panels on the front and the angle between the ground) with the same latitude either. If conditions permit, the solar panel's inclination to make changes with the seasons can be adjusted accordingly. Use one of the benefits of solar panels so that the battery is constantly in a state of Floating, can be more advantageous to inhibit the degree of polarization occurs, so that the battery life was greatly extended, this is the effect of 1 +1> 2.
　 　 　 　 　 　 　 　 　 　 　 　 　
The composition of the solar panels

Solar panels from the battery plate frame components, glass, packaging materials, as well as components such as Junction Box