Exploiting racemism enhanced organic room-temperature phosphorescence to demonstrate Wallach’s rule in the lighting chiral chromophores oleh Xiugang Wu, Chun-Ying Huang, Deng-Gao Chen, Denghui Liu, Chichi Wu, Keh-Jiunh Chou, Bin Zhang, Yafei Wang, Yu Liu, Elise Y. Li, Weiguo Zhu, Pi-Tai Chou