Perovskite solar cell configurations

Patent metadata

Field	Value
Publication number	US-11764001-B2
Application number	US-201816630568-A
Country	US
Kind code	B2
Filing date	Jul 20, 2018
Priority date	Jul 24, 2017
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

Various perovskite solar cell embodiments include a flexible metal substrate (e.g., including a metal doped TiO2 layer), a perovskite layer, and a transparent electrode layer (e.g., including a dielectric/metal/dielectric structure), wherein the perovskite layer is provided between the flexible metal substrate and the transparent electrode layer. Also, various tandem solar cell embodiments including a perovskite solar cell and either a quantum dot solar cell, and organic solar cell or a thin film solar cell.

First claim

What is claimed is:

1. A perovskite solar cell, comprising:
a non-transparent flexible metal substrate, the flexible metal substrate being a bottom-most layer of the perovskite solar cell and comprising a metal doped TiO2 layer provided on top of a metal foil material made of a first metal, wherein the metal doped TiO2 layer is doped with a second metal different than the first metal other than titanium, the flexible metal substrate not including a plurality of nanoparticles;
a perovskite layer; and
a transparent electrode layer including a dielectric/metal/dielectric structure, wherein the perovskite layer is provided between the flexible metal substrate and the transparent electrode layer, wherein the transparent electrode layer is a top-most layer of the perovskite solar cell facing opposite to the bottom-most layer, and wherein the transparent electrode layer enables illumination of the perovskite layer through the transparent electrode layer.

2. The perovskite solar cell according to claim 1 , wherein the first metal is titanium.

3. The perovskite solar cell according to claim 1 , wherein the metal of the dielectric/metal/dielectric structure is Au, Al or Ag.

4. The perovskite solar cell according to claim 1 , wherein the dielectric/metal/dielectric structure includes at least one of TiO 2 , ZnO, MoO and NiO.

5. The perovskite solar cell according to claim 1 , wherein the dielectric/metal/dielectric structure comprises MoO/Au/MoO, TiO 2 /Au/MoO, ZnO/Ag/NiO, MoO/Al/MoO or MoO/Ag/NiO.

6. A perovskite solar cell, comprising:
a flexible metal substrate, the flexible metal substrate being a bottom-most layer of the perovskite solar cell and including a metal doped TiO 2 layer, the flexible metal substrate not including a plurality of nanoparticles, wherein the metal doped TiO 2 layer is doped with a metal other than titanium;
a perovskite layer; and
a transparent electrode layer, wherein the perovskite layer is provided between the flexible metal substrate and the transparent electrode layer, wherein the transparent electrode layer is a top-most layer of the perovskite solar cell facing opposite to the bottom-most layer, and wherein the transparent electrode layer enables illumination of the perovskite layer through the transparent electrode layer.

7. The perovskite solar cell according to claim 6 , wherein the metal doped TiO 2 layer is an aluminum doped TiO 2 layer.

8. The perovskite solar cell according to claim 6 , wherein the metal doped TiO 2 layer is a niobium doped TiO 2 layer.

9. The perovskite solar cell according to claim 6 , wherein the transparent electrode layer includes a dielectric/metal/dielectric structure.

10. The perovskite solar cell according to claim 6 , wherein the flexible metal substrate includes a titanium foil layer, and wherein the metal doped TiO 2 layer is provided on the titanium foil layer.

11. The perovskite solar cell according to claim 1 , wherein the second metal is aluminum.

12. The perovskite solar cell according to claim 1 , wherein the second metal is tantalum.

13. The perovskite solar cell according to claim 1 , wherein the second metal is iron.

14. The perovskite solar cell according to claim 1 , wherein the second metal is niobium.

15. The perovskite solar cell according to claim 1 , wherein the metal doped metal oxide layer is formed by providing a layer of the second metal on top of a layer of the first metal and performing a first annealing step followed by a second annealing step, wherein the first annealing step includes thermally oxidizing the layer of the second metal and the layer of the first metal at a first temperature, and wherein the second annealing step includes thermally oxidizing the layer of the second metal and the layer of the first metal at a second temperature in ambient oxygen.

16. The perovskite solar cell according to claim 15 , wherein first temperature is 300-700° C. and the second temperate is 400° C.

17. The perovskite solar cell according to claim 6 , wherein the metal doped TiO 2 layer is a tantalum doped TiO 2 layer.

18. The perovskite solar cell according to claim 6 , wherein the metal doped TiO 2 layer is an iron doped TiO 2 layer.

Assignees

• Univ Pittsburgh Commonwealth Sys Higher Education
• Global Frontier Ct Multiscale Energy Systems

Inventors

• Lee Jung-Kun
• Han Gillsang

Classifications

• H10K85/50

  Organic perovskites; Hybrid organic-inorganic perovskites [HOIP], e.g. CH3NH3PbI3 · CPC title

• H01G9/2031 Primary

  comprising titanium oxide, e.g. TiO2 (H01G9/2036 takes precedence) · CPC title

• H10F10/19 Primary

  Photovoltaic cells having multiple potential barriers of different types, e.g. tandem cells having both PN and PIN junctions · CPC title

• H10F10/161

  comprising multiple PN heterojunctions, e.g. tandem cells · CPC title

• C23C14/16

  on metallic substrates or on substrates of boron or silicon · CPC title