Organic solar module and/or fabrication method

Patent metadata

Field	Value
Publication number	US-10897022-B2
Application number	US-201816012162-A
Country	US
Kind code	B2
Filing date	Jun 19, 2018
Priority date	Jun 19, 2017
Publication date	Jan 19, 2021
Grant date	Jan 19, 2021

Abstract

According to some embodiments, an organic device and method of forming an organic device are disclosed. A hybrid cathode layer is formed in stacked alignment with a substrate. The hybrid cathode layer includes a combination of a conductive nanowire and an electron-transport material. After forming the hybrid cathode layer, a photoactive layer is formed on a structure that includes the substrate and the hybrid cathode layer. After forming the photoactive layer, a hybrid anode layer that is separated from the hybrid cathode layer by the photoactive layer is formed. The hybrid anode layer includes a combination of a conductive nanowire and a hole-transporting material.

First claim

What is claimed is:

1. An organic photovoltaic device comprising:
a substrate; and
a photovoltaic circuit supported by the substrate, the photovoltaic circuit comprising three layers, the three layers comprising:
a first hybrid electrode formed from a blend of first electrically conductive nanowires and a hole transporting and/or electron blocking material that carries positive charges, wherein the first electrically conductive nanowires are embedded in the hole transporting and/or electron blocking material,
a second hybrid electrode formed from a blend of second electrically conductive nanowires and an electron transporting and/or hole blocking material that carries negative charges, wherein the second electrically conductive nanowires are embedded in the electron transporting and/or hole blocking material, and
a photoactive layer disposed between the first hybrid electrode and the second hybrid electrode.

2. The organic photovoltaic device of claim 1 , wherein the first hybrid electrode is substantially transparent, and the hole transporting and/or electron blocking material comprises a conjugated polymer that includes PEDOT.

3. The organic photovoltaic device of claim 1 , wherein the second hybrid electrode is substantially transparent, and the electron transporting and/or hole blocking material comprises an inorganic semiconducting material.

4. The organic photovoltaic device of claim 1 , wherein the photoactive layer is a blend of P3HT:PCBM.

5. The organic photovoltaic device of claim 1 , wherein the hole transporting and/or electron blocking material comprises an inorganic metal oxide.

6. The organic photovoltaic device of claim 5 , wherein the inorganic metal oxide comprises an oxide of one or more metals selected from the group consisting of Ni, W, or Mo.

7. The organic photovoltaic device of claim 1 , wherein the electron transporting and/or hole blocking material comprises a metal oxide.

8. The organic photovoltaic device of claim 7 , wherein the metal oxide is an oxide of one or more metals selected from the group consisting of Zn, Sn, or Ti.

9. The organic photovoltaic device of claim 7 , wherein the metal oxide is doped with Al or Sb.

10. The organic photovoltaic device of claim 1 , wherein the electron transporting and/or hole blocking material comprises an organic polymer.

11. The organic photovoltaic device of claim 10 , wherein the organic polymer is non-conjugated polyethylenimine ethoxylated.

12. An organic photovoltaic device comprising:
a substrate that is substantially transparent; and
a photovoltaic circuit supported by the substrate, the photovoltaic circuit comprising a planar assembly of circuit layers, wherein the planar assembly of circuit layers consists essentially of:
a first hybrid electrode formed from a blend of first silver nanowires and a conjugated polymer that carries positive charges, wherein the first silver nanowires are embedded in the conjugated polymer,
a second hybrid electrode formed from a blend of second silver nanowires and an inorganic semiconducting material, wherein the second hybrid electrode carries negative charges, and the second silver nanowires are embedded in the inorganic semiconducting material, and
a photoactive layer disposed between the first hybrid electrode and the second hybrid electrode, the photoactive layer being formed from a composition comprising an organic photoactive material.

13. A method of forming an organic photovoltaic device, the method comprising:
forming a hybrid cathode layer in stacked alignment with a substrate, the hybrid cathode layer comprising a combination of first electrically conductive nanowires and an electron-transport material, wherein the electron-transport material exhibits a preference to conduct electrons and impede a flow of holes, and the first electrically conductive nanowires are embedded in the electron-transport material;
after forming the hybrid cathode layer, forming a photoactive layer on a structure comprising the substrate and the hybrid cathode layer; and
after forming the photoactive layer, forming a hybrid anode layer that is separated from the hybrid cathode layer by the photoactive layer, the hybrid anode layer comprising a combination of second electrically conductive nanowires and a hole-transporting material, wherein the hole-transporting material exhibits a preference to conduct holes and impede a flow of electrons, and the second electrically conductive nanowires are embedded in the hole-transporting material.

14. The method of claim 13 , wherein the first electrically conductive nanowires are silver nanowires, the electron-transport material is a metal oxide, and forming the hybrid cathode layer comprises coating a surface of the substrate with a combination comprising a blend of the silver nanowires and the metal oxide.

15. The method of claim 14 , wherein the metal oxide is doped with Al or Sb.

16. The method of claim 13 , wherein forming the photoactive layer comprises coating a surface of the hybrid cathode layer with a composition comprising an organic photoactive material.

17. The method of claim 16 , wherein the organic photoactive material comprises a blend comprising P3HT:PCBM.

18. The method of claim 13 , wherein forming the photoactive layer comprises coating a surface of the hybrid cathode layer with a composition comprising an inorganic photoactive material, and the inorganic photoactive material comprises a blend comprising an inorganic perovskite material.

19. The method of claim 13 , wherein the second electrically conductive nanowires comprise silver nanowires, the hole-transporting material comprises a conjugated polymer composition comprising PEDOT:PSS, and forming the hybrid anode layer comprises coating a surface of the photoactive layer with a blend of the silver nanowires and the conjugated polymer composition comprising PEDOT:PSS.

20. The organic photovoltaic device of claim 1 , wherein a ratio of the second electrically conductive nanowires to the hole transporting and/or electron blocking material is about 2:1.

Assignees

• Cam Holding Corp
• Cambrios Film Solutions Corp

Inventors

• Allemand Pierre-Marc
• Gupta Rahul
• Egelhaaf Hans-Joachim
• Chen Pin-Chu
• Wagner Michael
• Maisch Philipp
• Pichler Karl
• Tam Kai Cheong
• Kubis Peter

Classifications

• H10K30/86

  Layers having high hole mobility, e.g. hole-transporting layers or electron-blocking layers · CPC title

• H10K30/85

  Layers having high electron mobility, e.g. electron-transporting layers or hole-blocking layers · CPC title

• H10K30/20 Primary

  comprising organic-organic junctions, e.g. donor-acceptor junctions · CPC title

• H10K30/50

  Photovoltaic [PV] devices · CPC title

• Y02E10/549

  Organic PV cells · CPC title