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1. WO2019232643 - DOPED METAL HALIDE PEROVSKITES WITH IMPROVED STABILITY AND SOLAR CELLS COMPRISING SAME

Publication Number WO/2019/232643
Publication Date 12.12.2019
International Application No. PCT/CA2019/050804
International Filing Date 07.06.2019
IPC
C07C 257/10 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
257Compounds containing carboxyl groups, the doubly-bound oxygen atom of a carboxyl group being replaced by a doubly-bound nitrogen atom, this nitrogen atom not being further bound to an oxygen atom, e.g. imino-ethers, amidines
10with replacement of the other oxygen atom of the carboxyl group by nitrogen atoms, e.g. amidines
C01G 11/00 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
11Compounds of cadmium
C01G 17/00 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
17Compounds of germanium
C01G 21/00 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
21Compounds of lead
H01L 31/0264 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
31Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
0248characterised by their semiconductor bodies
0256characterised by the material
0264Inorganic materials
H01L 51/46 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
42specially adapted for sensing infra-red radiation, light, electromagnetic radiation of shorter wavelength, or corpuscular radiation; specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
46Selection of materials
CPC
H01L 51/4226
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
42specially adapted for sensing infra-red radiation, light, electro-magnetic radiation of shorter wavelength or corpuscular radiation and adapted for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation ; using organic materials as the active part, or using a combination of organic materials with other material as the active part; Multistep processes for their manufacture
4213Comprising organic semiconductor-inorganic semiconductor hetero-junctions
422Majority carrier devices using sensitisation of widebandgap semiconductors, e.g. TiO2
4226the wideband gap semiconductor comprising titanium oxide, e.g. TiO2
Y02E 10/549
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
10Energy generation through renewable energy sources
50Photovoltaic [PV] energy
549Organic PV cells
Applicants
  • THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO [CA]/[CA]
Inventors
  • SAIDAMINOV, Makhsud
  • KIM, Junghwan
  • JAIN, Ankit
  • VOZNYY, Oleksandr
  • SARGENT, Edward H.
Agents
  • HILL & SCHUMACHER
Priority Data
62/681,91707.06.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DOPED METAL HALIDE PEROVSKITES WITH IMPROVED STABILITY AND SOLAR CELLS COMPRISING SAME
(FR) PEROVSKITES D'HALOGÉNURE MÉTALLIQUE DOPÉS AYANT UNE STABILITÉ AMÉLIORÉE ET CELLULES SOLAIRES LES COMPRENANT
Abstract
(EN)
Perovskites have high density of vacancies which absorb oxygen molecules and upon illumination, transform them into superoxide species which react with perovskites to decompose them, preventing use of these materials in many photo-applications. The present disclosure provides ways for improving the stability of perovskites in air ambient by doping perovskites with metals such as lead, cadmium, zinc, manganese, iron, cobalt, nickel, copper and tin which decreases the density of vacancies in perovskites and significantly increases the lifetime of perovskites. Perovskite solar cells containing inorganic and organic ions such as Cs+, formamidinium and methylammonium cations, Pb2+, Br- and I- with these metal dopants exhibit stable efficiency within a month of storage in air ambient with the relative humidity of 50%.
(FR)
L'objectif de la présente invention est de fournir des perovskites ayant une densité élevée de lacunes qui absorbent les molécules d'oxygène et les transforment sous illumination en espèces de superoxyde qui réagissent avec les perovskites pour les décomposer, empêchant l'utilisation de ces matériaux dans de nombreuses photo-applications. La présente invention concerne des procédés permettant d'améliorer la stabilité de perovskites dans l'air ambiant par dopage de pérovskites avec des métaux tels que le plomb, le cadmium, le zinc, le manganèse, le fer, le cobalt, le nickel, le cuivre et l'étain, ce qui permet de diminuer la densité des lacunes dans les perovskites et d'augmenter de manière significative la durée de vie des perovskites. L'invention concerne également des cellules solaires de pérovskite contenant des ions inorganiques et organiques tels que des cations Cs+, formamidinium et méthylammonium, Pb2+, Br- et I- qui présentent, avec ces dopants métalliques, une efficacité stable en un mois de stockage à l'air ambiant avec une humidité relative de 50 %.
Latest bibliographic data on file with the International Bureau