Electricity prices are rising rapidly, and people are turning to solar panels to combat these rising costs. To combat the power crisis, people consider installing solar panels on their rooftops. However, not everyone wants to install solar panels on their rooftops because they require a lot of space. But now, this problem may be solved. A recent study has revealed that in the future, the need for such solar panel installations may disappear, as people will have the option of installing window solar panels. They will be 10,000 times thinner than a hair and transparent.
In May of this year, researchers at Nanyang Technological University (NTU Singapore) in Singapore announced that they had developed a new type of solar cell that is 10,000 times thinner than a hair. This thinness makes this solar panel transparent, allowing easy viewing through windows. This new type of solar panel is made from a crystalline material called perovskite. It converts solar energy into electricity.
While older perovskite solar cells and conventional commercial solar panels may produce more power, NTU’s new solar panels make up for their lower power output with their unique features and ease of use.
According to a research paper published in ACS Energy Letters, the new perovskite panels are so transparent that they can be installed on windows without any significant problems viewing the outside view.
These solar panels slightly increase the haziness of window glass, reducing the amount of light entering from 70-80% to 41%. This reduction may sound significant, but in reality, ample light remains in the room. While sunglasses can reduce light even more, by 8% to 18%, we still see clearly.
These new solar panels are also ideal for use in cars and wearable gadgets. Imagine driving your electric car while it’s simultaneously being charged by solar panels. Transparent panels may not provide enough energy to keep the car running all the time, but they can significantly reduce your electricity bill.
Unlike traditional solar panels made of silicon, NTU Singapore’s perovskite panels can generate electricity from indirect or scattered sunlight. This is very beneficial for cities that rarely receive direct sunlight. Furthermore, study leader Analisa Bruno says that NTU Singapore’s perovskite cells can actually isolate certain wavelengths of light. They absorb the light engineers need and leave the rest intact. Furthermore, these panels should be easy to manufacture, although controlling the transparency requires a special thermal evaporation process, where the material is heated in a vacuum chamber until it vaporizes into a thin layer.
Although perovskite solar panels are still in their early stages of development, the scientists involved are confident that if installed on the windows of glass-fronted office towers, these solar panels could generate hundreds of megawatt-hours of electricity each year. Bruno has already filed a patent for perovskite solar panels, and if other companies can perfect the unique process for making solar panels, they may soon be installed in homes.