公开(公告)号：US11155471B2

公开(公告)日：2021-10-26

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

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：US10230049B2

公开(公告)日：2019-03-12

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

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：US09905765B2

公开(公告)日：2018-02-27

申请号：US15236072

申请日：2016-08-12

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：US20170047530A1

公开(公告)日：2017-02-16

申请号：US15236072

申请日：2016-08-12

Applicant: Florida State University Research Foundation, Inc.

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

IPC: H01L51/00 ,  H01L51/44 ,  H01L51/56 ,  H01L51/50 ,  H01L51/52

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.

Abstract translation: 本文提供钙钛矿聚合物膜，形成聚合物 - 钙钛矿膜的方法，以及包括聚合物 - 钙钛矿膜的装置。 聚合物 - 钙钛矿膜可以包括嵌入聚合物基质中的多个氯化铵铵（CH 3 NH 3 PbCl 3）纳米柱晶体。 这些器件可以是光电器件，例如发光二极管，其包括聚合物 - 钙钛矿膜。 器件的聚合物 - 钙钛矿膜可以是器件中的空穴传输层。 制造薄膜的方法可以包括旋转浇铸前体溶液，随后进行热退火。