Intensity Lab
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 Used Littleford High Intensity Lab Mixer model W 10 US $7,500.00 |
 USED Prodex high intensity lab mixer model JSS2 appr US $7,500.00 |
How To Build A Solar Panel
Building the basic components of a DIY solar panel is not a simple process; in fact, making actual solar cells from scratch is virtually impossible without the use of high-tech, specialized tools. You can put the solar panels together easily enough once you have the cells, but the manufacture of solar cells themselves is a highly complex process.
It's the solar photovoltaic cell itself that converts sunlight into actual electric current. It has many other uses as well; they can be used in surveillance equipment that allow law enforcement to "see" through walls by detecting infrared radiation as well as other types of electromagnetic radiation. It can also be used to measure light intensity, and therefore assist photographers in calibrating their cameras, and to measure certain chemical reactions under lab conditions.
The very first step in crafting a solar panel is to obtain a semiconductor. Usually, this is pure silicon, which is produced from quartz. The silicon is melted down and combined with trace amounts of either boron or phosphorus, then allowed to cool into a block shape. This block is then altered into thin wafers and the surfaces are carefully etched and cleaned.
The next step is to place these wafers into what is known as a diffusion furnace. This exposes the wafer to extremely high temperatures, which cause the formation of an N-Type semiconductor. The "N" in this case stands for "Negative;" this heat treatment creates an abundance of negative electron charges, which is what helps to produce direct current when direct sunlight hits the surface.
The surface of the wafer must then be painted with an anti-reflective coating. After all, we want our photovoltaic cell to absorb sunlight, not bounce it back into space! Once that is accomplished, the electrical contacts are imprinted on the top.
Next would be the P-Type, or positively-charged surface. This is made on the bottom, or back side of the photovoltaic cell, using a form of aluminum.
Once the cell has been tested, it is then connected to other cells to form your DIY solar panel. Start learning how to build a solar panel today!
Which Tablet has the Best Display? (ZDnet)
Display expert Raymond Soneira put the Amazon Kindle Fire, Barnes & Noble Nook
Tablet and Apple iPad 2 to the test and this is what he found.
Lab 8 inverse square law
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