US 12,757,560 B2 · Perovskite solar cell and fabrication method thereof

Abstract

This application provides a perovskite solar cell structurally including a transparent electrode, an electron transport layer, a perovskite layer, a hole transport layer and a second electrode in sequence, where the perovskite layer may include a main perovskite layer and a one-dimensional perovskite coating layer covering surface and periphery of the main perovskite layer, where the one-dimensional perovskite coating layer may include: a first overlay layer disposed between the main perovskite layer and the electron transport layer; and a second overlay layer disposed between the main perovskite layer and the hole transport layer.

Claims19

Dependent claims

A perovskite solar cell structurally comprising a transparent electrode, an electron transport layer, a perovskite layer, a hole transport layer and a second electrode in sequence,

wherein the perovskite layer comprises a main perovskite layer and a one-dimensional perovskite coating layer covering surface and periphery of the main perovskite layer, wherein the one-dimensional perovskite coating layer comprises:
a first overlay layer disposed between the main perovskite layer and the electron transport layer;
and
a second overlay layer disposed between the main perovskite layer and the hole transport layer,
wherein an absolute value of a difference between LUMO energy level of the first overlay layer and LUMO energy level of the main perovskite layer is in a range of 0 eV to 0.3 eV.

2 more elements

A fabrication method of perovskite solar cell, comprising a step of fabricating or preparing a transparent electrode, a step of fabricating an electron transport layer, a step of fabricating a perovskite layer, a step of fabricating a hole transport layer, and a step of fabricating a second electrode, wherein

the perovskite layer comprises a main perovskite layer and a one-dimensional perovskite coating layer covering surface and periphery of the main perovskite layer, wherein the one-dimensional perovskite coating layer comprises:
a first overlay layer disposed between the main perovskite layer and the electron transport layer;
and
a second overlay layer disposed between the main perovskite layer and the hole transport layer,
wherein an absolute value of a difference between LUMO energy level of the first overlay layer and LUMO energy level of the main perovskite layer is in a range of 0 eV to 0.3 eV.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/224,074Filed 20 Jul 2023 · continuation

Priority

11 May 2022

Published

US 2023/0371290 A116 Nov 2023

Granted

6 Oct 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H10K 30/40
Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation: comprising a…
H10K 30/85
Layers having high charge carrier mobility: layers having high electron mobility, e.g. electron-transporting layers or hole-blocking layers
H10K 30/86
Layers having high charge carrier mobility: layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers
H10K 71/15
Using liquid deposition, e.g. spin coating: characterised by the solvent used

Perovskite solar cell and fabrication method thereof

Life of this patent

Perovskite solar cell and fabrication method thereof

Life of this patent

Abstract

Claims19