Wang, Hua, Yuling Wu, Yang Xu, and Zhixiang Gao. 2014. “Vacuum Annealing of White-Light Organic Light-Emitting Devices With Polyfluorene Copolymer As Light-Emitting Layer”. Asian Journal of Chemistry 26 (4):960-62. https://doi.org/10.14233/ajchem.2014.15731.