Monocrystalline Silicon Solar Wafer 125*125mm

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1. Structure of Monocrystalline Silicon Solar Wafer 125*125mm Description

A wafer, also called a slice or substrate, is a thin slice of semiconductor material, such as a crystalline silicon, used in electronics for the

 fabrication of integrated circuits and in photovoltaics for conventional, wafer-based solar cells. The wafer serves as the substrate for

 microelectronic devices built in and over the wafer and undergoes many microfabrication process steps such as doping or ion implantation,

etching, deposition of various materials, and photolithographic patterning. Finally the individual microcircuits are separated (dicing) and




2. Main Features of the Monocrystalline Silicon Solar Wafer 125*125mm

• monocrystalline solar wafer 125*125mm
•Conductivity Type: P type
•Dopant: Boron
•Resistivity: 1~3 ohm
•thickness: 200um.



3. Monocrystalline Silicon Solar Wafer 125*125mm Images







4. Monocrystalline Silicon Solar Wafer 125*125mm Specification








125 x 125±0.5 (mm)


200±20 (μm)

Oxygen Content:

≤1 x 1018  

Carbon Content: 

≤5x 1016

Minority Carrier Lifetime:

≥2 (us)



Saw Depth: 

<20 (μm)


<=30(μm)< span="">


50 (μm)

Bevel Edge Angle: 


Bevel Edge Length: 

1±0.5 (mm)

Rectangular Angle 


Edge Defect:

No crack, no V-Shape Chip

Surface Quality:

As cut, cleaned, no stain;

No water mark, no contamination, no pits on the surface.

Edge Chips:

Length0.5mm, Depth0.3mm,

2 per wafer



5. FAQ of Monocrystalline Silicon Solar Wafer 125*125mm


Q1:Can we visit your factory?

A1:Sure,welcome at any time,seeing is believing.



Q2:Which payment terms can you accept?

A2:T/T,L/C,Moneygram,Paypal are available for us.


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Q:How many solar panels do you need to power a house?
Here in southwestern Arizona more and more solar panels are getting installed everyday. If it wasn't an economical thing to do I doubt if people would be doing it. Given that because of climate change our summers are getting longer and apparently hotter running an air conditioner gets evermore expensive. Also every year or so the rates go up. At the current rate of increase rates will easily double in a decade. Installing a solar array means that in far less than a decade, given a hefty down payment, any government subsidies and tax breaks in a couple of years you'll own your own electric company. Technically about /4 of the US would benefit from a true government program to install solar panels on all buildings. Years ago it became law that every building had to have electricity, running water and flush toilets. We need a similar law to hurry up a conversion to solar where practical.
Q:can a small solar panel be charged with lamps?
Sure!...did you ever use a solar powered calculator indoors under a lamp?? It works just fine.
Q:How Can I Reduce A Solar Panels Output To 3volts From 9volts?
By hitting #x2F;3 of it with rocks! See what I did there!
Q:Will my off the shelf deep cycle battery I purchased at autozone work well with solar panels?
There are batteries particularly made for solar, such as the Trojan T05-RE . I think the RE stands for renewable energy. A deep cycle battery should work all right, although not quite as well. What you want to do is try out your setup first, with just one battery, and the panels provided. If this is one of those 45 watt kits, you may be surprised at how little energy you actually get from the panels. Increasing the number of batteries won't help, either - that's like getting a larger water tank, when you only have a trickle to fill it. If your goal is really to save money, the most cost-effective solar is the grid-tied type, with no batteries at all. That's what we have, and I've never regretted it.
Q:projects using solar panels?
I have done this in my project too and a solar panel, two wires, a circuit/project board, an LED light/a small fan,a switch and a solderer. Just solder the wires to the positive and negative parts of the panel, put the wires connected to the panel to the board put the LED's on the other side and the switch together with it shine light on the panel and the light/fan will work.(If it dosen't work, please DO NOT consult ME.)
Q:Photodiode vs solar panels?
yes. Any semiconductor junction will convert light into electrical energy, just shine a light at an LED (connect LED to voltmeter) and you'll see a small voltage produced (if you configure the meter as an ammeter it will develop a very small current). Solar panels are just VERY large surface photodiodes.
Q:How do you make a solar panel?
Making a solar electric (photovoltaic) panel is not a simple matter. You could make one up by wiring individual solar cells together, but it would either be more expensive than a panel you could just buy, or not very good. It's kind of like making your own TV. You could put one together from scratch if you really had to, but it wouldn't be worth it, when you can just go go Costco and get one cheaper.
Q:Why should people use solar panels more for houses?
Right now, the U.S. government and some state governments (like California) are offering subsidies on solar panels for businesses and houses. With these subsidies, anyone infesting in solar power today will have their investment returned in less than 0 years. This means that with these subsidies, solar panels are basically paying for themselves; they're free. In addition, excess power generated on solar panels can be added to the local power grid and, if you're lucky and can set it up with your local power distributor, the power company will pay you for the power you generate. This are just financial reasons. Their is also the reduction of power generated by fossil fuels when using solar power which mitigates climate change.
I think you need to take some basic courses on electricity. Usually, 8 volt solar panels are required to charge 2 volt batteries. The voltages of photovoltaic cells are set by the material they are made of, only current changes. If you hook up a 2 V solar panel to a 2 V battery, no current will flow, nothing would get charged. You would need some elaborate DC to DC voltage converters to charge a 2 V battery from 2 V solar panels. Solar panels can be connected in parallel or in series, as you've made the mistake of buying 2 V solar panel, you would have to wire them in series and have a charge controller that could limit the voltage of the charge. Did it ever occur to you that two 5 watt solar panels would not be able to provide the power needed by a 400 watt inverter? You're just running off your battery with your set up. Solar power is expensive power, you can not have solar without burning a hole in your wallet.
Q:Powering an air conditioner via solar panels?
Why pay thousands of dollars for solar energy ($27,000 average cost) when you can build your own solar panel system for just a fraction of the retail cost. You can build a single solar panel or you can build an entire array of panels to power your whole house. Some people are saving 50% on their power bill, some people are reducing their bill to nothing. But what’s most impressive is that just by following these instructions some are even making the power company pay them!

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