23.1: Invited Paper: High efficiency and Stability of Ink‐jet Printed Quantum Dot Light Emitting Diodes via Dual Ionic Surface Passivation. (24th February 2021) - Xiang, Chaoyu; Wu, Longjia; Lu, Zizhe; Li, Menglin; Wen, Yanwei; Yang, Yixing; Liu, Wenyong; Zhang, Ting; Cao, Weiran; Tsang, Sai-Wing; Shan, Bin; Yan, Xiaolin; et al.