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 normalized EL spectra of Devices series-D at different bias voltages: (a) Device series-D ( z = 30); (b) Device series-D ( z = 20); (c) Device series-D ( z = 10). CIE coordinates are also indicated. Inset in panel (c) is the photo of Device D ( z = 10) at 14 V.