公开(公告)号：US20190062175A1

公开(公告)日：2019-02-28

申请号：US16117628

申请日：2018-08-30

Applicant: Florida State University Research Foundation, Inc.

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

IPC: C01G21/00 ,  H01L33/26 ,  H01L31/0328

Abstract: Bandgap-tunable perovskite compositions are provided having the formula CsPb(A)xBy)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(A)xBy)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：US20180159041A1

公开(公告)日：2018-06-07

申请号：US15868647

申请日：2018-01-11

Applicant: Florida State University Research Foundation, Inc.

Inventor： Biwu Ma ,  Hanwei Gao ,  Yu Tian ,  Yichuan Ling

IPC: H01L51/00 ,  H01L51/50

CPC classification number: H01L51/0034 ,  C08G2261/512 ,  C08G2261/91 ,  H01L51/0026 ,  H01L51/5056 ,  H01L2251/301 ,  H01L2251/5369

Abstract: Provided herein are perovskite-polymer films, methods of forming polymer-perovskite films, and devices including polymer-perovskite films. The polymer-perovskite films may include a plurality of methylammonium lead chloride (CH3NH3PbCl3) nanopillar crystals embedded in a polymer matrix. The devices can be optoelectronic devices, such as light emitting diodes, which include polymer-perovskite films. The polymer-perovskite films of the devices can be hole transport layers in the devices. The methods of making films may include spin casting a precursor solution followed by thermal annealing.

公开(公告)号：US20180040769A1

公开(公告)日：2018-02-08

申请号：US15668123

申请日：2017-08-03

Applicant: Florida State University Research Foundation, Inc.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling

IPC: H01L33/26 ,  H01L33/00

CPC classification number: H01L33/26 ,  H01L33/005

Abstract: Provided herein are all-inorganic perovskite-based films, devices including all-inorganic perovskite-based films, and methods of forming all-inorganic perovskite-based films. The methods may include casting a precursor formulation that includes an all-inorganic perovskite, a liquid, and a polymer. The amount of polymer in the precursor formulation may be less than the amount of all-inorganic perovskite in the precursor formulation.

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.

公开(公告)号：US10774032B2

公开(公告)日：2020-09-15

申请号：US15272572

申请日：2016-09-22

Applicant: Florida State University Research Foundation, Inc.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling ,  Zhao Yuan

IPC: H01L51/54 ,  C09K11/06 ,  C07C209/68 ,  C09K11/02 ,  C07C211/63 ,  H05B33/14 ,  C09K11/66 ,  H01L51/42 ,  H01L51/00 ,  H01L51/50 ,  B82Y40/00 ,  B82Y20/00

Abstract: Provided herein are metal halide perovskite nanoplatelets, methods for making metal halide perovskite nanoplatelets, and devices and composite materials that include metal halide nanoperovskite nanoplatelets. The metal halide perovskite nanoplatelets may be stable at ambient temperature and pressure, thereby easing device fabrication.

公开(公告)号：US20180204978A1

公开(公告)日：2018-07-19

申请号：US15921314

申请日：2018-03-14

Applicant: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling

IPC: H01L33/26 ,  H01L33/00

CPC classification number: H01L33/26 ,  H01L33/005 ,  H01L51/0037 ,  H01L51/502

Abstract: Provided herein are all-inorganic perovskite-based films, devices including all-inorganic perovskite-based films, and methods of forming all-inorganic perovskite-based films. The methods may include casting a precursor formulation that includes an all-inorganic perovskite, a liquid, and a polymer. The amount of polymer in the precursor formulation may be less than the amount of all-inorganic perovskite in the precursor formulation.

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：US10224459B2

公开(公告)日：2019-03-05

申请号：US15921314

申请日：2018-03-14

Applicant: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATION, INC.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling

IPC: H01L33/26 ,  H01L33/00

Abstract: Provided herein are all-inorganic perovskite-based films, devices including all-inorganic perovskite-based films, and methods of forming all-inorganic perovskite-based films. The methods may include casting a precursor formulation that includes an all-inorganic perovskite, a liquid, and a polymer. The amount of polymer in the precursor formulation may be less than the amount of all-inorganic perovskite in the precursor formulation.

公开(公告)号：US10128409B2

公开(公告)日：2018-11-13

申请号：US15668123

申请日：2017-08-03

Applicant: Florida State University Research Foundation, Inc.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling

IPC: H01L33/26 ,  H01L33/00

Abstract: Provided herein are all-inorganic perovskite-based films, devices including all-inorganic perovskite-based films, and methods of forming all-inorganic perovskite-based films. The methods may include casting a precursor formulation that includes an all-inorganic perovskite, a liquid, and a polymer. The amount of polymer in the precursor formulation may be less than the amount of all-inorganic perovskite in the precursor formulation.

公开(公告)号：US20170084848A1

公开(公告)日：2017-03-23

申请号：US15272572

申请日：2016-09-22

Applicant: Florida State University Research Foundation, Inc.

Inventor： Hanwei Gao ,  Biwu Ma ,  Yichuan Ling ,  Zhao Yuan

IPC: H01L51/00 ,  C07C209/68 ,  C07C211/63 ,  C09K11/02 ,  C09K11/06

CPC classification number: C07C209/68 ,  B82Y20/00 ,  B82Y40/00 ,  C07C211/63 ,  C09K11/025 ,  C09K11/06 ,  C09K11/664 ,  C09K2211/10 ,  C09K2211/188 ,  H01L51/0037 ,  H01L51/0042 ,  H01L51/007 ,  H01L51/4246 ,  H01L51/5012 ,  H01L2251/308 ,  H05B33/14 ,  Y02E10/549 ,  Y02P70/521 ,  Y10S977/755 ,  Y10S977/896 ,  Y10S977/95

Abstract: Provided herein are metal halide perovskite nanoplatelets, methods for making metal halide perovskite nanoplatelets, and devices and composite materials that include metal halide nanoperovskite nanoplatelets. The metal halide perovskite nanoplatelets may be stable at ambient temperature and pressure, thereby easing device fabrication.