1,3,5-Tri(1-naphthyl)benzene is primarily used in the field of organic electronics and materials science. Its rigid and aromatic structure makes it a suitable candidate for applications in organic light-emitting diodes (OLEDs) and other optoelectronic devices. The compound’s ability to form stable thin films and its excellent electron-transporting properties enhance the efficiency and performance of OLED displays and lighting systems. Additionally, it is employed in the development of organic semiconductors, where its extended π-conjugation system contributes to improved charge carrier mobility. Researchers also explore its potential in designing advanced materials for sensors and photovoltaic devices due to its unique photophysical properties.