Pb free Aluminum Paste For monocrystalline silicon Solar Cells

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AL8866 is a series of aluminum pastes developed for use as the back electrode on single or polycrystalline silicon solar cells.

Technical Data Sheet

Product description

AL8866 is a series of aluminum pastes developed for use as the back electrode on single or polycrystalline silicon solar cells. This low bow aluminum paste is specially designed to form p+ doped layer when fired on a p-doped silicon (<200 microns) photovoltaic devices. This paste has been optimized to eliminate Al bead formation during the firing process.

Typical properties

Solids (%)

≥ 75%

Viscosity (Pa.s) (NDJ-79, 25)


Emulsion thickness

≤ 25μm

Screen mesh


Dried thickness


Fired thickness


Resistivity (milliohms/square)

≤ 30


125×125mm Monocrystalline silicon≤ 1mm (200 micron wafer)

125×125mm Monocrystalline silicon 1±0.25mm (180 micron wafer)

All properties are target values and are not meant to represent product specifications.

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Q:What is sun cells technology?
The history of sun cell can be traced back to 1839, when the French physicist Becquerel Alexander-Edmond discovered the photovoltaic effect (effect Photovoltaic). Until 1883, the first selenium solar cell was made by the American scientist Fritts Charles.
Q:How does solar cell technology apply to our daily life?
The solar cell which can format the solar array generates solar power for daily life usage.
Q:How to manufacture solar cells?
First of all, the silicon needs to be purified.
Q:Is solar cell technology very developed and v applied to life a lot?
Yes, solar cells are very commonly used in the commercial military, industrial, areas.
Q:I would like to use a ppt to show how solar cells can work in a power generation factory, can anybody share some useful information with me?
The solar cell works in a process following scientific research, you'd better refer to some books to make it right.
Q:Is it possible to learn how to make solar cells by yourself?
Are you good at doing experiments? If you are, try it as many times as you can, then you will be finally be an expert!
Q:On the parallel connection of solar cells
if this group of bad The phenomenon of short-circuit, that the solar cells on the electrical equipment and output, but the voltage is reduced; if it is a parallel combination, then I suggest Each group of "output" line in series with a "switch" type of diode, so, if in which one of the short-circuit damage, other normal solar cells will not be bad on this group of "anti-charging" and Damage to other normal solar cells, if this group of bad conditions for the open circuit, it is only to reduce the entire solar cell "external" output current, will not cause other failures.
Q:What is the working principle of a solar cell?
A Solar cell works by using the sun's energy to enable electrons in semiconducting materials to move from orbits close to the nuclei of their atoms to higher orbits where they can conduct electricity.
Q:What is a polymer solar cell and how does it work?
Polymer solar cell is a type of flexible solar cell made with polymers.
Q:I bought a new poly solar cells, and the test result of the conversion efficiency is 16.8%, is it lower than usual?
If the solar cells have been used for over 5 years or more, the conversion efficiency may become lower.

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