Transparent conductor and device

• US 10,306,752 B2
• Filed: 07/11/2017
• Issued: 05/28/2019
• Est. Priority Date: 03/05/2014
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Naito, Katsuyuki, Yoshinaga, Norihiro, Yang, Tianyi, Akasaka, Yoshihiro
• Primary Examiner(s): Vu, Hung K
• Application Number:
  US15/646,203
• Publication Number:
  US 20170311441A1
• Time in Patent Office: 686 Days
• Field of Search: None
• CPC Class Codes: H01L 33/42 Transparent materials
• CPC Class Codes: H01L 33/486 adapted for surface mounting
• CPC Class Codes: H01L 33/62 Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
• CPC Class Codes: H05K 1/0274 Optical details, e.g. printed circuits comprising integral optical means H05K1/0269 takes precedence; coupling light guides with opto-electronic components G02B6/42
• CPC Class Codes: H05K 1/144 Stacked arrangements of planar printed circuit boards
• CPC Class Codes: H05K 2201/0108 Transparent
• CPC Class Codes: H05K 2201/0323 Carbon
• CPC Class Codes: H05K 2201/0379 Stacked conductors

Abstract

According to one embodiment, a transparent conductor includes a transparent substrate; a metal nanowire layer disposed on the transparent substrate and including a plurality of metal nanowires; a graphene oxide layer covering the metal nanowire layer; and an electrical insulating resin layer disposed in contact with the graphene oxide layer.

Claims

1. A coordinate panel comprising:

a first wiring board comprising a first transparent substrate and a first conductive layer disposed on the first transparent substrate, the first conductive layer being patterned to extend in a first direction;

a second wiring board comprising a second transparent substrate and a second conductive layer disposed on the second transparent substrate, the second conductive layer being spaced apart from and faced to the patterned first conductive layer, and patterned to extend in a second direction crossing the first direction; and

an electrical insulating resin layer that is in contact with the first transparent substrate, the first conductive layer, the second transparent substrate, and the second conductive layer,

wherein each of the first and second conductive layers comprises a metal nanowire layer comprising a plurality of metal nanowires and a first graphene oxide layer covering the metal nanowire layer, and the metal nanowires comprise fused nanowires.

2. The coordinate panel according to claim 1, wherein the first graphene oxide layer comprises metal nanoparticles therein or thereon.

3. The coordinate panel according to claim 1, wherein the metal nanowires are silver nanowires.

4. The coordinate panel according to claim 1, wherein the electrical insulating resin layer comprises a resin having a polar group.

5. The coordinate panel according to claim 1, further comprising a second graphene oxide layer interposed between the first transparent substrate and the metal nanowire layer, and between the second transparent substrate and the metal nanowire layer.

6. A photoelectric conversion device comprising:

a first support having a light-transmission property, the first support comprising a first transparent substrate and a first conductive layer disposed on the first transparent substrate;

a second support comprising a second transparent substrate and a second conductive layer disposed on the second transparent substrate, the second conductive layer being spaced apart from and faced to the first conductive layer;

a photoelectric conversion element comprising a semiconductor layer, and first and second electrodes arranged on the semiconductor layer, the light-emitting element being positioned between the first support and the second support, wherein the first electrode is electrically connected to the first conductive layer, and the second electrode is electrically connected to the second conductive layer; and

an electrical insulating resin layer that is in contact with the first conductive layer and the second conductive layer,

wherein the first conductive layer comprises a metal nanowire layer comprising a plurality of metal nanowires and a graphene oxide layer covering the metal nanowire layer, and the metal nanowires comprise fused nanowires.

7. The photoelectric conversion device according to claim 6, wherein the photoelectric conversion element is a light-emitting element.

8. The photoelectric conversion device according to claim 7, wherein the photoelectric conversion device is an inorganic light-emitting diode.

9. A photoelectric conversion device comprising:

a first support having a light-transmission property, the first support comprising a first transparent substrate and a segmented conductive layer disposed on the first transparent substrate;

a second support spaced apart from and faced to the segmented conductive layer;

a photoelectric conversion element comprising a semiconductor layer, and first and second electrodes disposed on the semiconductor layer and spaced apart from each other, the light-emitting element being positioned between the first support and the second support, wherein the first electrode and the second electrode are electrically connected to different segments of the segmented conductive layer; and

an electrical insulating resin layer that is in contact with the segmented conductive layer and the second support,

wherein the segmented conductive layer comprises a metal nanowire layer comprising a plurality of metal nanowires and a graphene oxide layer covering the metal nanowire layer, and the metal nanowires comprise fused nanowires.

10. The photoelectric conversion device according to claim 9, wherein the photoelectric conversion element is a light-emitting element.

11. The photoelectric conversion device according to claim 10, wherein the photoelectric conversion device is an inorganic light-emitting diode.