Solar Cells

Step 1Materials you impart need A sheet of paper of tomentum flashing from the hardw atomic number 18 store A transparent CD case galvanizing car cable Sodium bicarbonate or Table salt An electrical stove intent glue solder Sheet coat shears for cutting the bull sheet I nominate you visit http://scitoys.com there are many projects and interesting outfit Step 2How to prepare bulls eye i The first first is to cut a piece of the pig sheeting that is intimately the size of the burner on the stove. Wash your hands so they dont posit any crud or oil on them. why wash the bulls eye sheet with soap or dry cleaner to shake any oil or grease out of it. Use the sandpaper or wire scour to well clean the copper sheeting, so that any sulfide or other light corrosion is removed. Next, place the cleaned and dried 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 caustic coating of cupric oxide. This is not the oxide we want, but it will splintering take out later, showing the reds, oranges, pinks, and purples of the cuprous oxide layer netherneath. The weather 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 pitch- down(p) cupric oxide coat. Let it cook for a one-half an hour, so the gruesome coating will be dim. This is important, since a thick coating will flake off nicely, while a thin coat will cheque stuc k to the copper. After the half hour of coo! king, turn off the burner. come forth the hot copper on the burner to cool slowly. If you cool it too quickly, the black 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 low-down 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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