Improper molecular ferroelectrics with simultaneous ultrahigh pyroelectricity and figures of merit

Wenru Li, Gang Tang, Guangzu Zhang^*, Hasnain Mehdi Jafri, Jun Zhou, Di Liu, Yang Liu, Jiesu Wang, Kuijuan Jin, Yongmin Hu, Haoshuang Gu, Zhao Wang, Jiawang Hong, Houbing Huang, Long Qing Chen, Shenglin Jiang, Qing Wang