公开(公告)号：US20250107422A1

公开(公告)日：2025-03-27

申请号：US18291156

申请日：2022-07-22

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Annalisa BRUNO ,  Herlina Arianita DEWI ,  Subodh Gautam MHAISALKAR ,  Nripan MATHEWS

IPC: H10K71/15 ,  H10K30/10 ,  H10K30/50

Abstract: A method of bandgap tuning of co-evaporated perovskite by a solution process is provided. The method may include providing a co-evaporated perovskite, and treating a surface of the co-evaporated perovskite with a halide-based solution to diffuse the halide-based solution into the co-evaporated perovskite thereby doping it with a halide dopant to form a doped co-evaporated perovskite, wherein the doped co-evaporated perovskite has a characteristic bandgap that is shifted towards a smaller wavelength as compared to the characteristic bandgap of the co-evaporated perovskite before the doping. A doped co-evaporated perovskite having a tuned bandgap, and a solar cell including the doped co-evaporated perovskite is also provided.

公开(公告)号：US20180002354A1

公开(公告)日：2018-01-04

申请号：US15637385

申请日：2017-06-29

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Tze Chien SUM ,  Weiqiang CHEN ,  Subodh Gautam MHAISALKAR ,  Nripan MATHEWS ,  Sjoerd Antonius VELDHUIS ,  Saikat BHAUMIK

IPC: C07F7/24 ,  C07F7/08 ,  G01N21/64

CPC classification number: C07F7/24 ,  C01P2002/01 ,  C01P2002/34 ,  C01P2002/70 ,  C01P2002/84 ,  C07F7/0834 ,  G01N2021/6417

Abstract: Provided is a nanocrystal comprising a core comprised in a shell, wherein the core comprises a first material of a perovskite structure comprising a first organic cation not exceeding a molar weight of about 45 g/mol, a first divalent metal and a first counter anion, and, wherein the shell comprises a second material of a perovskite structure comprising a second organic cation having a molar weight between about 74 g/mol and about 187 g/mol, optionally the first organic cation, a second divalent metal and a second counter anion. Provided is further a matrix having the nanocrystal as defined above encapsulated therein. Provided is further a process for the synthesis of a nanocrystal comprising a core comprised in a shell, the process comprising a) preparing a precursor solution containing at least one divalent metal, a first organic cation not exceeding a molar weight of about 45 g/mol, a second organic cation having a molar weight between about 74 g/mol and about 187 g/mol, and at least one counter anion in a polar aprotic solvent; and b) subjecting the precursor solution to a non-polar solvent to form the nanocrystal.

公开(公告)号：US20210388009A1

公开(公告)日：2021-12-16

申请号：US17343652

申请日：2021-06-09

Applicant: Nanyang Technological University

Inventor： Benny FEBRIANSYAH ,  Teck Ming KOH ,  Prem Jyoti Singh RANA ,  Nripan MATHEWS ,  Subodh Gautam MHAISALKAR

IPC: C07F7/24 ,  C09D11/52 ,  C09D11/037 ,  C09D11/033

Abstract: Aspects concern an organic metal-halide perovskite precursor including a divalent metal cation, a halide anion, and an alkylamine, wherein the divalent metal cation is connected to a nitrogen atom of the alkylamine via a covalent bond. Further aspects concern a process for the production of the organic metal-halide perovskite precursor and a perovskite ink including the organic metal-halide perovskite precursor and a non-coordinating solvent.

公开(公告)号：US20230405542A1

公开(公告)日：2023-12-21

申请号：US18033919

申请日：2021-10-22

Applicant: Nanyang Technological University

Inventor： Parth VASHISHTHA ,  Subodh Gautam MHAISALKAR ,  Nripan MATHEWS ,  Timothy John WHITE

IPC: B01J13/00 ,  C09K11/61 ,  C01G3/00

CPC classification number: B01J13/0026 ,  C09K11/616 ,  C01G3/006 ,  C01P2002/72 ,  C01P2002/85 ,  C01P2006/60 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/64 ,  C01P2002/86

Abstract: A colloid comprising a plurality of nanocrystals, each nanocrystal comprising rubidium, a group 11 element of the Periodic Table of Elements such as copper, silver or gold, and a halogen. A method for preparing said colloid via a room temperature ligand assisted re-precipitation (LAPP) method, wherein the ligand is an acidic ligand such as oleic acid. The precursor solution is formed in a polar organic solvent such as DMSO or DMF, and the precursor solution is contacted with a non-polar organic solvent and said ligand to precipitate the nanocrystals. A polymer comprising a plurality of nanocrystals, each nanocrystal having a particle size in the range of 1 nm to 50 nm; and a use of said colloid in optoelectronic devices, etc. are also disclosed.

公开(公告)号：US20170066932A1

公开(公告)日：2017-03-09

申请号：US15122846

申请日：2015-03-10

Applicant: Yissum Research Development Company of the Hebrew University of Jerusalem Ltd ,  Nanyang Technological University

Inventor： Shlomo MAGDASSI ,  Camille ZWICKER ,  Subodh Gautam MHAISALKAR ,  Daniel MANDLER ,  Lihi LEVI ,  Suzanna AZOUBEL

IPC: C09D5/32 ,  C03C17/32 ,  G02B1/10 ,  C09D7/12 ,  G02B5/00

Abstract: Provided is a spectrally selective solar thermal coating, formed as a continuous uniform layer, combining a light-absorbing coating and an infrared (IR) reflecting layer positioned on top of the absorber coating. The coating is adapted for use in a plurality of applications, including amongst many control of stray light and absorptivity in thermosolar devices.

Abstract translation: 提供了一种光谱选择性太阳能热涂层，其形成为连续的均匀层，其组合吸光涂层和位于吸收体涂层顶部的红外（IR）反射层。 该涂层适用于多种应用，包括许多对杂散光的控制和热极设备中的吸收性。

公开(公告)号：US20160222039A1

公开(公告)日：2016-08-04

申请号：US15009916

申请日：2016-01-29

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Tze Chien SUM ,  David GIOVANNI ,  Nripan MATHEWS ,  Subodh Gautam MHAISALKAR

IPC: C07F7/24 ,  H01L43/10

CPC classification number: H01L43/10 ,  C07F7/003

Abstract: The invention relates to spintronic materials, and in particular, to spintronic materials comprised of halide perovskite compounds. In various embodiments, the spintronic material comprises a solution processed halide perovskite compound. A method for forming the solution processed halide perovskite compound is also disclosed.

Abstract translation: 本发明涉及自旋电子材料，特别涉及由卤化钙钙钛矿化合物组成的自旋电子材料。 在各种实施方案中，自旋电子材料包括经处理的卤化钙钙钛矿化合物溶液。 还公开了一种形成溶液处理的卤化钙钙钛矿化合物的方法。

公开(公告)号：US20160149145A1

公开(公告)日：2016-05-26

申请号：US14950931

申请日：2015-11-24

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Subodh Gautam MHAISALKAR ,  Thomas BAIKIE ,  Nripan MATHEWS ,  Pablo PEREZ BOIX ,  Cesare SOCI ,  Daniele CORTECCHIA

IPC: H01L51/00 ,  H01L51/42

CPC classification number: H01L51/0091 ,  H01L51/0032 ,  H01L51/4226 ,  Y02E10/549

Abstract: The invention relates generally to perovskite materials, and in particular, to copper perovskite materials. The invention further relates to solid-state integrated, lightweight, photovoltaic or light-emitting devices with an active layer based on the copper perovskite materials.

Abstract translation: 本发明一般涉及钙钛矿材料，特别是涉及到钙钛矿型材料。 本发明还涉及具有基于铜钙钛矿材料的活性层的固态集成轻量级光电或发光器件。