Solar Cells

Step 1Materials you testament need A stable gear of cop flashing from the hardw atomic number 18 store A transparent CD case galvanizing car telegram Sodium bicarbonate or Table salt An electric automobile stove acerb glue solder Sheet metallic element shears for cutting the bull sheet I refer you visit http://scitoys.com there are many projects and interesting fit out Step 2How to prepare bulls eye i The first kickoff is to cut a piece of the copper color sheeting that is close the size of the burner on the stove. Wash your hands so they dont represent any smirch or oil on them. consequently wash the copper sheet with soap or modify cleaner to shake any oil or grease out of it. Use the sandpaper or wire scrub to well clean the copper sheeting, so that any sulfide or other light corrosion is removed. Next, place the cleaned and dry copper sheet on the burner and turn the burner to its highest setting. Step 3Cooking the copper i cook the copper for at least 30 min. As the copper gets hotter, the change are replaced with a dense coating of cupric oxide. This is not the oxide we want, but it will trash take out later, showing the reds, oranges, pinks, and purples of the cuprous oxide layer netherneath. The stand firm bits of color disappear as the burner starts to sting red.

When the burner is glowing red-hot, the sheet of copper will be surface with a cutting cupric oxide coat. Let it cook for a half(a) an hour, so the mordant coating will be thick-skulled. This is important, since a thick coating will flake off nicely, while a thin coat will cheque stuck to the coppe! r. After the half hour of cooking, turn off the burner. come forth the hot copper on the burner to cool slowly. If you cool it too quickly, the sear oxide will stay stuck to the copper. Step 4Prepare the cooked copper i When the copper has cooled to mode temperature (this takes about 20 minutes), most of the black oxide will be gone. A light scrubbing with your hands under trail water will remove most of the teentsy bits. stand pat the temptation to remove all of the black spots...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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