Polarized red, green, and blue light emitting diodes fabricated with identical device configuration using rubbed PEDOT:PSS as alignment layer

Zhang Haoran, Zhang Qi^‡, Zhang Qian, Sun Huizhi, Hai Gang, Tong Jing, Xu Haowen, Xia Ruidong^§

Luminance efficiency versus current density for polarized LEDs with different active layers. Filled and open up-triangle: luminance current efficiency collected with polarizer parallel and perpendicular to the rubbing direction.