公开(公告)号：US20180090312A1

公开(公告)日：2018-03-29

申请号：US15714519

申请日：2017-09-25

申请人： Nanoco Technologies Ltd.

发明人： Nigel L. Pickett ,  Nathalie C. Gresty ,  Ombretta Masala ,  Jie Li

IPC分类号： H01L21/02 ,  H01L33/04 ,  H01L33/18 ,  H01L51/50

摘要： A core/shell semiconductor nanoparticle structure comprises a core comprising a halide perovskite semiconductor and a shell comprising a semiconductor material that is not a halide perovskite (and that is substantially free of halide perovskites). The halide perovskite semiconductor core may be of the form AMX3, wherein: A is an organic ammonium such as CH3NH3+, (C8H17)2(CH3NH3)+, PhC2H4NH3+, C6H11CH2NH3+ or 1-adamantyl methyl ammonium, an amidinium such as CH(NH2)2+, or an alkali metal cation such as Li+, Na+, K+, Rb+ or Cs+; M is a divalent metal cation such as Mg2+, Mn2+, Ni2+, Co2+, Pb2+, Sn2+, Zn2+, Ge2+, Eu2+, Cu2+ or Cd2+; and X is a halide anion (F−, Cl−, Br−, I−) or a combination of halide anions.