SUBSTRATE FOR AN OPTOELECTRONIC DEVICE

• US 20110247689A1
• Filed: 11/04/2009
• Published: 10/13/2011
• Est. Priority Date: 11/05/2008
• Status: Abandoned Application

• Current Assignee: Sefar AG
• Original Assignee: Sefar AG
• Inventors: Rosenfelder, Matthias, Araujo de Castro, Fernando, Nueesch, Frank, Chabrecek, Peter, Meier, Hanspeter
• Application Number:
  US13/127,407
• Publication Number:
  US 20110247689A1
• Time in Patent Office: Days
• US Class Current: 136/256
• CPC Class Codes: D03D 1/0076 Photovoltaic fabrics
• CPC Class Codes: H01G 9/2095 comprising a flexible sustrate
• CPC Class Codes: H10K 30/00 Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation integrated devices or assemblies of multiple devices H10K39/00, H10K65/00; electrolytic light-sensitive devices H01G9/20
• CPC Class Codes: H10K 30/53 in the form of fibres or tubes, e.g. photovoltaic fibres
• CPC Class Codes: H10K 50/00 Organic light-emitting devices integrated devices or assemblies of multiple devices H10K59/00, H10K65/00; organic semiconductor lasers H01S5/36
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/542 Dye sensitized solar cells
• CPC Class Codes: Y02E 10/549 Organic PV cells
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A substrate for an optoelectronic device, with a fabric of monofilaments and/or fibres of a polymer, which is designed for purposes of implementing and/or supporting an electrode layer, wherein the fibres have a fibre diameter of between 20 μm and 100 μm, in particular of between 30 μm and 80 μm, the fabric has mesh openings that implement an open surface area of 70% to 85%, and the fabric is provided with a coating having a transparent, electrically non-conducting polymer material such that the fibres are at least partially surrounded by the polymer material.

Claims

1-18. -18. (canceled)

19. A substrate for an optoelectronic device, with a fabric of monofilaments and/or fibres of a polymer, which is designed for purposes of implementing and/or supporting an electrode layer, wherein the fibres have a fibre diameter of between 20 μ

m and 100 μ

m, in particular of between 30 μ

m and 80 μ

m, the fabric has mesh openings that implement an open surface area of 70 to 85%, and the fabric is provided with a coating of a transparent, electrically non-conducting polymer material, such that the fibres are at least partly surrounded by the polymer material, the coating is applied such that the substrate on a first uncoated side of the surface is electrically conducting, and on a second, coated side of the surface is electrically non-conducting.

20. The substrate in accordance with claim 19, wherein the coating is designed such that fibres or fibre sections protrude out of the coating on one or both sides of the substrate.

21. The substrate in accordance with claim 19, wherein the polymer material is designed and/or selected such that the coating is UV-resistant and/or promotes a UV-resistance of the substrate.

22. The substrate in accordance with claim 19, wherein the polymer material is designed to be radiation-cured, in particular can be UV-cross-linked, or thermally-cured.

23. The substrate in accordance with claim 19, wherein the polymer material is selected and/or applied such that the coating acts as a moisture and/or oxidation barrier for at least one side of the substrate.

24. The substrate in accordance with claim 19, wherein the polymer material is selected from the group consisting of an acrylic resin, silicon, a fluoropolymer, PU, PEN, PI, PET, PA, EVA, and mixtures thereof.

25. The substrate in accordance with claim 24, wherein the polymer material is SiOx or ORMOCER.

26. The substrate in accordance with claim 19, wherein the coating has a coating thickness that is smaller than a fabric thickness of the fabric and lies in a range between 70% and 85% of the fabric thickness.

27. The substrate in accordance with claim 19, wherein the fibres are implemented from a material that is selected from the group consisting of PA, PP, PET, PEEK, PI, PPS, PBT, PEN, and are one of semi-transparent and transparent monofilaments.

28. The substrate in accordance with claim 19, wherein a mesh width of the mesh openings lies in the range between 200 μ

m and 300 μ

m, and a surface area of a mesh opening lies in the range between 80,000 μ

m² and 800,000 μ

m².

29. The substrate in accordance with claim 19, wherein the fibres have a proportion of metallised fibres and metal fibres in the fabric at regular spacings.

30. The substrate in accordance with claim 29, wherein the metal fibres are selected from the group consisting of Ti, Mo, W, Cr, Cu, Ag, Al, Au and mixtures thereof.

31. The substrate in accordance with claim 29, wherein the metal fibres are woven into the fabric having electrically non-conducting fibres in one of a warp direction and a fill direction, wherein the fabric has no additional form of metallisation.

32. The substrate in accordance with claim 19, wherein the fabric has a form of metallisation that is applied as a coating onto the fabric.

33. The substrate in accordance with claim 29, wherein fibres that are metal and metallised, are provided in the fabric such that the fabric has a surface resistance<

50 Ω

/sq.

34. The substrate in accordance with claim 29, wherein fibres that are metal and metallised, are provided in the fabric such that the fabric has a surface resistance<

20 Ω

/sq.

35. The substrate in accordance with claim 29, wherein fibres that are metal and metallised, are provided in the fabric such that the fabric has a surface resistance<

10 Ω

/sq.

36. The substrate in accordance with claim 19, wherein the substrate is in combination with an optoelectronic device designed as a solar cell.

37. The substrate in accordance with claim 36, wherein the optoelectronic device is implemented as one of an OLED, display element, architectural surface element, and electronic passive component.