The scientists wanted to improve the performance of solar panels on buildings by using special materials. Solar panels can get too hot, which reduces how well they make electricity. By adding these special materials that can change from solid to liquid and back again, the panels stay cooler. This means they work better and last longer. The researchers looked at many experiments and computer simulations to figure out how to make these materials work best with the solar panels. They found that adding these materials can help make the solar panels more efficient and could help make them more popular for buildings in the future.