<p>Silicon and perovskite solar cells have reached efficiencies above 26%, close to the Shockley–Queisser theoretical limit. However, further increases in efficiency are still possible by better utilizing the ultraviolet energy range of sunlight. One proposal uses a wavelength shifter to shift photons from the ultraviolet to the visible region. Furthermore, shifting these photons helps preserve the integrity of the sealants used in manufacturing the modules, which degrade with ultraviolet light. In this work, thin films of photoluminescent dye pigments were developed, and their photoemission properties were investigated. Tin dioxide (SnO₂) films with incorporated pigment were also examined, aiming for their use with dual functions, anti-reflective coating, and wavelength shifters. The films showed emission in the visible spectrum range when excited in the ultraviolet region, indicating a potential for use in solar cells, increasing light absorption in the ultraviolet region, and preventing degradation of the sealant with sun exposure.</p> Graphical abstract <p></p>