Can you imagine a winter without rain? A whole year when the sun doesn't shine? The universe has different sources of energy, including water, wind, and even sunlight. Previously, only the oil found in nature was used, but it is a source that has become threatened with extinction, expensive, destroying the ecosystem, so studies began on ways to use solar energy for the purpose of lighting, heating, and in order to preserve on the environment.
Hence, let's move on to your question, what are photovoltaic cells? For a detailed explanation of these cells, let's continue reading together.
What are photovoltaic cells?
The word photoelectric means the ability to convert direct light into electricity, and there are some materials that have the property of absorbing photons in the light and converting them into electrons, after obtaining electrons, an electric current can be used.
The discovery of the photoelectric effect for the first time began in 1839 by the French physicist Edmond Becquerel, as he found some materials that produce small amounts of electric current when exposed to light, and then Albert Einstein described it in 1905 and later won the Nobel Prize in Physics for his research on the effect PV.
What are the types of solar cells?
- Crystalline silicon cells: silicon consists of many crystals and is called polycrystalline, silicon is converted into a monocrystalline structure that works with an efficiency of up to 26.6%, characterized by its wonderful appearance, and this type of cell is the highest efficiency.
- Thin-film cells: They are manufactured by depositing a semiconductor material in thin layers of a few microns thick on a substrate of glass or plastic, and these materials include cadmium telluride and copper indium gallium selenide, its efficiency is close to silicon by up to 23.3% and can be It is also made of amorphous silicon, but it is less efficient.
- Organic cells: Inspired by the process of photosynthesis, it uses organic molecules instead of minerals but has a low efficiency and short life, but it can be an alternative to the low cost to manufacture.
What is the working principle of photovoltaic panels:
One cell is a small part of the panels, and to get electrical energy, we need to install energy panels that provide us with enough current according to the devices to be operated, for example, when you install only one photovoltaic cell, it will produce for you only 2 watts, and this is only enough to operate a watch or a machine A calculator, but for lighting a house, you will need larger numbers of cells, as the cells are connected in a laminated panel and vary in size according to the ability to generate energy. To understand more about its working principle, here are the stages:
- After installing the panels on the roofs of buildings or in farms, they are placed in a manner appropriate to the fall of the sun's rays.
- It absorbs these rays and converts them into energy.
- The energy produced can either be used directly or stored in storage or batteries.
- You can take advantage of the energy not only for lighting but there are also for solar heaters.
Let me point out some common questions that you may have, dear reader, including:
1- Is it possible to make use of the panels without direct sunlight or, for example, on a rainy day?
Of course, but the more direct and shining the sun on the panels, the greater the benefit.
2- Which is better, electric subscription or obtaining solar panels?
Obtaining solar energy does not require you to explore for oil and use it in power stations in order to generate electricity, and therefore when you purchase energy panels, you will make significant savings, because they do not require you to pay a monthly subscription.
Do not hesitate to install solar panels today
Solar cells are the basic construction of the panels, when you own them, you will be able to generate free electricity for your home or business, while preserving the environment, say goodbye to the monthly subscription, to get the best solar panels and if you are interested in buying different building materials we offer you the best products All you have to do is visit our store by clicking here: IBS-SHOP
Read More: The Sakaka Solar Project : The Beginning Of Renewable Energy Projects In Saudi Arabia
and then Add to Home Screen.
