Stanford researchers have developed a high efficiency OLED device by nanopatterning the electrode layer to create a high impedance metasurface (HIM) that reduces 'plasmonic' losses. A typical metal cathode traps a large portion of generated light in an OLED.
Stanford researchers have developed a versatile molecular engineering approach, via random copolymerization, to gain good processability while maintaining high charge transport and photovoltaic performance for conjugated copolymers.