# US 2021/0280801 A1 · Multi-Junction Perovskite Material Devices

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- Number: US 2021/0280801 A1
- Document ID: US20210280801A1
- Status: Published application
- Kind: A1
- Application number: 17/325,597
- Filed: 2021-05-20
- Published: 2021-09-09
- Earliest claimed: 2013-11-26
- Assignees: Hunt Perovskite Technologies, L.L.C.
- Applicants: Hunt Perovskite Technologies, L.L.C.
- Inventors: Michael D. Irwin; Vivek V. Dhas
- Web page: https://patentgrep.com/patent/US20210280801A1

## CPC

- H01G 9/2027: {comprising an oxide semiconductor electrode}
- H01G 9/2009: {Solid electrolytes}
- H01G 9/2031: {comprising titanium oxide, e.g. TiO2 (H01G9/2036 takes precedence)}
- H01G 9/2045: {comprising a semiconductor electrode comprising elements of the fourth group of the Periodic Table with or without impurities, e.g. doping materials}
- H01G 9/2059: {comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution}
- H10F 77/90: Energy storage means directly associated or integrated with photovoltaic cells, e.g. capacitors integrated with photovoltaic cells
- H10K 30/88: Passivation; Containers; Encapsulations
- H10K 85/30: Coordination compounds
- H10K 85/50: Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3
- H10K 85/633: {comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom}
- H10K 85/636: {comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom}
- Y02E 10/542: Dye sensitized solar cells
- Y02E 10/549: Organic PV cells
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes, the active layer having perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.

## Claims

### Claim at position 1

1-20. (canceled)

### Claim 21

A photovoltaic device comprising:
a first subcell comprising a first electrode and a first plurality of layers comprising a first photoactive layer, wherein the first photoactive layer comprises a first perovskite material;
a second subcell comprising a second electrode and a second plurality of layers comprising a second photoactive layer; and
a bilayer interfacial layer disposed between the first subcell and the second subcell;
wherein the first photoactive layer, the second photoactive layer, and the bilayer interfacial layer are disposed between the first electrode and the second electrode; and wherein the bilayer interfacial layer comprises two or more layers each comprising a different compound selected from the group consisting of: B, Nb, Zn, Zr, oxides of any of the foregoing metals, sulfides of any of the foregoing metals, nitrides of any of the foregoing metals, graphite, graphene, and and any combination thereof.

### Claim 22 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises a second perovskite material.

### Claim 23 (depends on 22)

The photovoltaic device of claim 22, wherein the first perovskite material and the second perovskite material have the formula CMX3;
wherein C comprises one or more cations each selected from the group consisting of Group metals, Group 2 metals, organic cations, and combinations thereof;
wherein M comprises one or more metals each selected from the group consisting of Fe, Co, Ni, Cu, Sn, Pb, Bi, Ge, Ti, Zn, and combinations thereof; and
wherein X comprises one or more anions each selected from the group consisting of halides, sulfides, selenides, and combinations thereof.

### Claim 24 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises a copper indium gallium selenide (CIGS) material.

### Claim 25 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises cadmium telluride.

### Claim 26 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises cadmium sulfide.

### Claim 27 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises cadmium selenide.

### Claim 28 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises gallium arsenide.

### Claim 29 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises germanium indium phosphide.

### Claim 30 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises a semiconducting polymer.

### Claim 31 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises silicon.

### Claim 32 (depends on 21)

The photovoltaic device of claim 21, wherein the second photoactive layer comprises a dye sensitized solar cell.

### Claim 33 (depends on 21)

The photovoltaic device of claim 21, wherein the first photoactive layer comprises a perovskite material having the formula FAPbI3 and the second photoactive layer comprises a perovskite having the formula FASnI3, wherein FA represents formamidinium.

### Claim 34 (depends on 21)

The photovoltaic device of claim 21, wherein the first photoactive layer comprises a perovskite material having the formula FAPbBr2I and the second photoactive layer comprises a copper indium gallium selenide (CIGS) material, wherein FA represents formamidinium.

### Claim 35 (depends on 21)

The photovoltaic device of claim 21, wherein the first photoactive layer comprises a perovskite material having the formula FAPbBr2I and the second photoactive layer comprises a dye sensitized solar cell, wherein FA represents formamidinium.

### Claim 36 (depends on 21)

The photovoltaic device of claim 21, wherein the first photoactive layer comprises a perovskite material having the formula FAPbBr2I and the second photoactive layer comprises silicon, wherein FA represents formamidinium.

### Claim 37 (depends on 21)

The photovoltaic device of claim 21, wherein the first photoactive layer comprises a perovskite material having the formula FAPbBr2I and the second photoactive layer comprises a cadmium telluride, wherein FA represents formamidinium.

### Claim 38 (depends on 21)

The photovoltaic device of claim 21, wherein the first photoactive layer absorbs electromagnetic radiation at a first portion of the electromagnetic spectrum and the second photoactive layer absorbs electromagnetic radiation at a second portion of the electromagnetic spectrum; and
wherein the first portion of the electromagnetic spectrum differs from the second portion of the electromagnetic spectrum.

### Claim 39 (depends on 21)

The photovoltaic device of claim 21, wherein the bilayer interfacial layer is disposed adjacent to and in direct contact with the first photoactive material and the second photoactive material.

### Claim 40

A photovoltaic device comprising:
a first subcell comprising a first electrode and a first plurality of layers comprising a first photoactive layer, wherein the first photoactive layer comprises a first perovskite material;
a second subcell comprising a second electrode and a second plurality of layers comprising a second photoactive layer; and
an interfacial layer disposed between the first subcell and the second subcell, wherein the interfacial layer comprises a material selected from the group consisting of graphene, PEDOT:PSS, a third perovskite material, and any combination thereof;
wherein the first photoactive layer, the second photoactive layer, and the interfacial layer are disposed between the first electrode and the second electrode.