Bright, efficient, and stable pure-green hyperfluorescent organic light-emitting diodes by judicious molecular design oleh Yi-Ting Lee, Chin-Yiu Chan, Nanami Matsuno, Shigetada Uemura, Susumu Oda, Masakazu Kondo, Rangani Wathsala Weerasinghe, Yanmei Hu, Gerardus N. Iswara Lestanto, Youichi Tsuchiya, Yufang Li, Takuji Hatakeyama, Chihaya Adachi