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 §
       

(a) Polarized absorption and photoluminescence spectra of the polymers and the blends. Solid line ||: polarizer parallel to rubbing direction, dashed line ⊥: polarizer perpendicular to rubbing direction. (b) Chemical structures of the polymers.