Make a solar cell yourself - Great Science project for School Kids
A solar panel works with solar energy that you can use in abundance without damaging the environment.
Solar panels collect solar energy that is utilized as an electrical energy. It produces DC which can be transformed into an alternating current that can be utilized for each household's needs.
For now, let us begin with one very interesting experiment. In this cool activity, we'll see ourselves how we can make a Solar cell ourselves at home. School/College students can too learn this trick as it may be of some help for their next science project.
Before we begin you first need to make sure that you have the following items handy for your project:
1. A CD
2. 3 Zener Diodes
3. Copper Wire
4. Normal Electric Wire
5. Wire Cutter
7 Multimeter (so that you can check & confirm the electric current which we are about to produce).
1. Take copper wire and make 4 sets of loops as shown in the figure.
(one loop set)
- For better understanding let us call these 4 sets loops as A, B, C, & D and the ends of each loop as A1, A2 - B1, B2 - C1, C2 - D1, D2.
2. Paste all these copper loops on to the CD with the help of a glue.
3. Carefully solder the Zener Diodes from one end of the copper wire loop to the other end of another loop.
- For e.g. from A2 to B1, B2 to C1, C2 to D1 (see the image below)
4. Finally, solder the normal electric wire to the remaining two points (i.e. on A1 & D2). And that's it you are all done.
You are free to check the current with the multimeter (after placing your newly built Solar Cell under Sun) and I am pretty sure you'll be amazed to see your new self-made gadget working.
Do you know?
It has been discovered that the nanostructures in Blu-ray discs have very good light absorption features, and solar panels made from this material can increase their energy efficiency by 22%.
Current solar cells are not efficient enough because many photons are reflected off the panel rather than being converted into electrons.
However, this new discovery can provide a cost-effective way to fabricate photonic management and light-harvesting equipment to improve the performance of solar cells and other optoelectronic devices.