Solar cells generate electricity by absorbing sunlight in a thin layer of perovskite, a light-absorbing material. This layer is made with a liquid solution that dries and crystallizes into a solid film, but small changes in temperature, humidity and other conditions can affect the film and the performance of the solar cell.Solar cells generate electricity by absorbing sunlight in a thin layer of perovskite, a light-absorbing material. This layer is made with a liquid solution that dries and crystallizes into a solid film, but small changes in temperature, humidity and other conditions can affect the film and the performance of the solar cell.Energy & Green Tech[#item_full_content]