公开(公告)号：US20200270141A1

公开(公告)日：2020-08-27

申请号：US16862833

申请日：2020-04-30

Applicant: The Florida State University Research Foundation, Inc.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling ,  Xi Wang

IPC: C01G21/00 ,  H01L33/26 ,  H01L31/0328 ,  C07F7/24 ,  H01L51/50 ,  H01L51/42 ,  H01L51/00

Abstract: Bandgap-tunable perovskite compositions are provided having the formula CsPb(AxBy)3, wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula Cs4Pb(AxBy)6, wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided.

公开(公告)号：US11242263B2

公开(公告)日：2022-02-08

申请号：US16862833

申请日：2020-04-30

Applicant: The Florida State University Research Foundation, Inc.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling ,  Xi Wang

IPC: C01G21/00 ,  H01L33/26 ,  H01L31/0328 ,  C07F7/24 ,  H01L51/50 ,  H01L51/42 ,  H01L51/00

Abstract: Bandgap-tunable perovskite compositions are provided having the formula CsPb(AxBy)3, wherein A and B are each a halogen. The mixed halide perovskite composition has a morphology which suppresses phase segregation to stabilize a tuned bandgap of the mixed halide perovskite composition. For example, the perovskite may be in the form of nanocrystals embedded in a non-perovskite matrix, which, for example, may have the formula Cs4Pb(AxBy)6, wherein A and B are each a halogen. Solar cells and light-emitting diodes comprising the mixed perovskite compositions are also provided.