Solar Cells

Step 1Materials you forget need A tab of sensory hair flashing from the hardw atomic number 18 store A transparent CD case galvanizing car wire Sodium bicarbonate or Table salt An galvanising stove juicy glue solder Sheet coat shears for cutting the bull sheet I arouse you visit http://scitoys.com there are many projects and interesting fit out Step 2How to prepare bulls eye i The first commencement exercise is to cut a piece of the cop sheeting that is closely the size of the burner on the stove. Wash your hands so they dont demo any smut or oil on them. wherefore wash the slovenly person sheet with soap or modify cleaner to shake any oil or grease out of it. Use the sandpaper or wire broom to well clean the copper sheeting, so that any sulphide or other light corrosion is removed. Next, place the cleaned and arid copper sheet on the burner and turn the burner to its highest setting. Step 3Cooking the copper i cook the co pper for at least 30 min. As the copper gets hotter, the change are replaced with a dingy coating of cupric oxide. This is not the oxide we want, but it will silicon chip take out later, showing the reds, oranges, pinks, and purples of the cuprous oxide layer belowneath. The support 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 smuggled cupric oxide coat. Let it cook for a one-half an hour, so the morose coating will be broad. This is important, since a thick coating will flake off nicely, while a thin coat will cheque stuck to the copper. After the hal! f 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 barren 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 weakened 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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