How To: Make a homemade solar cell with a sheet of copper

Make a homemade solar cell with a sheet of copper

With electricity prices rising everyday, homeowners are looking for alternative means of powering their homes. Solar panels are on the top of everyone's list, but there still pretty expensive. But there's a DIY solution that could possibly give you some extra juice (albeit, in very small quantities). It's called a solar cell, and this video shows you how to make and test a solar cell using a sheet of copper.

These solar cells are basically sheets of copper with a layer of cuprous oxide (Cu2O) on them. The cuprous oxide is a semiconductor. You won't get much electricity from it, and in fact you'd need acres of these to power a home, but it's fun to make!

Start by cleaning the copper sheet. The cleaner the better. Then heat it on a red hot stove element or in a flame. This creates a thin layer of reddish cuprous oxide (or copper oxide) followed by a thicker layer of black cupric oxide. Cook it for about a half hour to get the black layer really thick. Then let it cool slowly. As it cools, most of the black layer flakes off, leaving only the red cuprous oxide layer.

To test, get a clear container of salty water. Put your solar cell inside, near one side, with some of it above the water for connecting a test lead. Put a plain sheet of copper inside, near the other side. Scrape off a little of the cuprous oxide from the solar cell and connect it to the positive test lead of your ammeter. Connect the negative test lead to the plain sheet of copper. The current will be in microamps.


But How To Change Copper Plates In Solar Panel

hello stevend,
thank you very much for your explanation of the copper solar cell.
it inspired me to make a similar setup but with another coating from caustic soda bath.
solar cell from nano coated copper + uncoated copper
copper solar cell at 6:30 in the morning / light sensitivity test
7:30 in the morning / no direct sun at the moment

(here you can find the explanation of keshe nano coatin process

and here are facebook pages from keshe foundation:
greetings from germany

but please be careful with the nano-coated copper. you dont have to touch it with bare hands, always wear gloves when you handle the nano coated copper. and maybe that setup produces gans (gas in nano state) which you should not touc too with bare hands. learn at the posted pages from the keshe foundation how to handle this nano coated metal and gans at first pls.

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