4W B Grade 156*156mm Polycrystalline Solar Cell

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4W B Grade 156*156mm Polycrystalline Solar Cell

Solar Module Summarize

Solar Module is the core part of solar PV power systems,also is the highest value part of it. The function of Solor Module is to convert the sun's radiation to electrical energy, or transfer it to battery and store in it, or to drive the load running.
The Product has been widely used in space and ground, it mainly used for power generation systems, charging systems, road lighting and traffic signs areas. It could offer a wide range of power and voltage, and with high conversion efficiency, and long service life.

Main Characteristic

Long Service Life
High Efficiency Solar Cells
Special Aluminum Frame Design
High Transmission, Low Iron Tempered Glass
Advanced Cell Encapsulation

APPLICATIONS
Solar power stations
Rural electrification, Small home power systems
Power supply for traffic, security, gas industry
12V and 24V battery charging system
Other industrial and commercial application
 

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4W B Grade 156*156mm Polycrystalline Solar Cell

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4W B Grade 156*156mm Polycrystalline Solar Cell

 

4W B Grade 156*156mm Polycrystalline Solar Cell

 

Warranties

6Inch 2BB  Polycrystalline Multi Solar Cells Mono Solar Cell

For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than  90% of performance. Free from material and workmanship defects within 5 years.

For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.

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Q:The significance of silicon wafer heat treatment
2, heat treatment of several temperature interval concept:Thermal donor: 350-550 degrees Celsius, 450 degrees Celsius450 C after heat treatment (or equivalent effect, such as the cooling of a single crystal in a furnace), the resistivity of the N type sample can be decreased and the resistivity of the P type sample is increased, as is the introduction of a certain number of donor phenomena. This is due to the temperature of the dissolved oxygen atoms in the formation of complex (SiO4) caused by the thermal donor, the resistivity of silicon and oxygen content of the four side is inversely proportional to.New donor: 550-800 DEG C, on behalf of the temperature of 650 degrees Celsius
Q:What is the silicon area of the 125 diagonal of a single crystal of 160?
160 refers to the diagonal length of the chamfer, you draw a map can be calculated, the specific algorithm is:
Q:How to do on the silicon wafer
The general use of ultrasonic and pre cleaning (pickling) can be solved
Q:How much is the thickness of the silicon wafer
Around 0.670mm. Wafer must be thinned, otherwise the loss of dicing knife
Q:Why the resistivity of silicon wafer is high and low
For example, after heating resistance and cooling, more or less there will be changes in the normal temperature change, is allowed error.
Q:What is the meaning of a cleaning in a semiconductor silicon wafer process? RCA?
RCA cleaning is to use the RCA method to clean.RCA is a typical and commonly used wet chemical cleaning method:
Q:Why do monocrystalline silicon chamfer? Polysilicon film?
After the wafer after cutting edge surface with corners burr edge collapse even cracks or other defects, the edge of rough surface. In order to increase the mechanical strength of silicon slice edge surface, reduce particle pollution, will be the edge grinding in a circular arc shape or a trapezoid
Q:Geometric parameters and testing of silicon wafer
Monocrystalline silicon chip has side length 125mm, 156mm, and 125 of the large diagonal diagonal 156mm and small chamfer diagonal 165mm,Polycrystalline silicon chip to the side of the main 156mm, diagonal 219.2mm.Wafer inspection the main test items are: side, diagonal, chamfer, thickness, TTV, line, chipping, cracks, warping, oil, resistivity, lifetime.
Q:Consult the difference between silicon and battery
From the silicon wafer to the battery piece needs to undergo the process of making wool, and the single crystal silicon wafer is generally made of alkali. Therefore, the appearance of monocrystalline silicon battery is black, and the appearance of polycrystalline silicon sheet is dark blue.
Q:What is the difference between silicon wafer P111 and P100
<111> is the coordinate of the direction vector<111> is expressed over the origin and point x = 1, y = 1, Z =1 on a straight line passing through the atom

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