The promising technology set a new record in efficiency for turning visible light into electric energy, making it viable for use as energy-collecting windows.They can be fabricated in multiple colors and are already used in some buildings with glass facades, like the Swiss Tech Convention Center.Now, the EPFL team has developed a new approach that can bring the efficiency rate up to 15.2 percent for the first time under simulated sunlight, maintaining long-term operational stability for over 500 hours during testing.In their study published in Nature, the scientists achieved groundbreaking results by improving the packing of two newly designed photosensitizer dye molecules to enhance the DSC's photovoltaic performance.Efficient DSCs could one day become power supply units and battery replacements for low-power electronic devices, using simple ambient light as the primary energy source."