High color rendering index white organic light-emitting diode using levofloxacin as blue emitter*
Miao Yan-Qina),c), Gao Zhi-Xiangb), Zhang Ai-Qina),c), Li Yuan-Haoa),c), Wang Huaa),c)†, Jia Hu-Shenga),d)‡, Liu Xu-Guanga),e), Tsuboi Taijuff)
       
The intensity ratio of the 452-nm blue-light EL to the 584-nm orange-light EL, I blue/ I orange, plotted against bias voltage.