Flat solar panels still endure challenges when it utilizes the sunlight that is available every day. Solar cells that are spherical in nature target to lift solar power harvesting possibility from almost all angles without needing pricey moving parts to persist tracing the movement of the sun through the sky.
The solar cells prototype made by Saudi scientists is a small blue sphere that someone can effortlessly grip on the hand. Tests conducted indoors with solar simulant lamps have already displayed that they can obtain 15% to 100% more power generation compared to a flat solar cell with a similar surface region, provisional on the background resource concentrating sunlight into the solar cells. The study team is optimistic that its nature-inspired design can thrive in future field experiments in many different areas all over the globe.
A scholar in microsystems engineering at the King Abdullah University of Science and Technology claimed that the shape and how the houseflies were placed accelerated the angular field of view so they could see approximately 270 degrees in the horizontal field.
To create the spherical solar cell design, the scientist and his teammates commenced from the work they had done initially, which displayed how to build thinner and supple cell designs established from a corrugated groove method.
Experimenting with the solar simulant laps displayed that the solar cells gave out 24% of power generation compared to traditional flat solar when exposed to sunlight. That power benefit skipped to 39% when both solar cells commenced to heat up and sustain some loss in power proficiency. This indicated that the spherical shape may have some benefits in scattering heat.
The solar cells similarly supplied 60% more power production compared to flat counterparts when both could gather only dispersed sunlight under a simulant roof as opposed to getting direct sunlight. Extra tests with dissimilar reflective backgrounds such as the aluminum cup, aluminum paper. It displayed that the hexagonal aluminum cup background backed the spherical solar cell outdo the flat solar cell by a 100% when it comes to power generation.
The group from Saudi made the spherical solar cells by using the monocrystalline silicon solar cells that presently justify for almost 90% of the globe’s solar power generation. The decision came from the target of assisting to expand the light-harvesting possibilities of solar cells of that kind, alongside the target of possibly making it easier to accelerate generation if the design turns out to be cost proficient.
The researchers similarly displayed that ultra-flexibility can be obtained with rigid silicon solar cells using the corrugation method.