Wu Qing-Yang, Xie Guo-Hua, Zhang Zhen-Song, Yue Shou-Zhen, Wang Peng, Chen Yu, Guo Run-Da, Zhao Yi, Liu Shi-Yong. Highly efficient all fluorescent white organic light-emitting devices made by sequential dopingJ. Acta Physica Sinica, 2013, 62(19): 197204. DOI: 10.7498/aps.62.197204