Invention Grant
- Patent Title: Electrically conductive article with high optical transmission
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Application No.: US14356914Application Date: 2012-12-12
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Publication No.: US09668333B2Publication Date: 2017-05-30
- Inventor: Ranjith Divigalpitiya , Mark J. Pellerite , John P. Baetzold , Gary A. Korba , Mieczyslaw H. Mazurek
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Adrian L. Pishko
- International Application: PCT/US2012/069091 WO 20121212
- International Announcement: WO2013/096036 WO 20130627
- Main IPC: H05K1/00
- IPC: H05K1/00 ; H05K1/02 ; H05K3/10 ; B82Y10/00 ; H01L51/44 ; H01L31/0224 ; G02F1/1343 ; H01L51/00

Abstract:
A transparent conductive article includes a transparent substrate, a thin electrically conductive grid, and a carbon nanolayer. The grid is disposed on the substrate, and the carbon nanolayer is also disposed on the substrate and in contact with the grid. The conductive grid and the carbon nanolayer may have thicknesses of no more than 1 micron and 50 nanometers, respectively. The carbon nanolayer has a morphology that includes graphite platelets embedded in nano-crystalline carbon, and can be produced with a buffing procedure using dry carbon particles without substantially damaging the grid structure. The article may have a visible light transmission of at least 80%, and a sheet resistance less than 500 or 100 ohms/square. The transparent substrate may comprise a flexible polymer film. The disclosed articles may substantially maintain an initial sheet resistance value when subjected to flexing.
Public/Granted literature
- US20140299364A1 ELECTRICALLY CONDUCTIVE ARTICLE WITH HIGH OPTICAL TRANSMISSION Public/Granted day:2014-10-09
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