US Patent 8211320 - Transferring carbon nanotubes to a flexible substrate
http://www.freepatentsonline.com/8211320.html
Carbon nanotubes are most commonly grown on silicon substrates using a CVD method but in some applications it is desirable to pattern the nanotubes on a flexible polymer substrate (e.g. flexible displays, photovoltaics, wide area sensors). This patent from Foxconn teaches one method of transferring carbon nanotubes from a rigid silicon substrate to a flexible substrate. Claim 1 reads:
1. A method for making a carbon nanotube device, comprising:
providing a rigid substrate with a plurality of carbon nanotube arrays grown thereon, the carbon nanotube arrays arranged in a predetermined pattern;
providing a flexible substrate with a plurality of recesses defined therein;
applying a curable adhesive in each recess; attaching the rigid substrate to the flexible substrate with the plurality of carbon nanotube arrays in contact with the curable adhesives;
curing the curable adhesives to fix the carbon nanotube arrays in the recesses; and
removing the rigid substrate, thereby obtaining the carbon nanotube device.
Carbon nanotubes are most commonly grown on silicon substrates using a CVD method but in some applications it is desirable to pattern the nanotubes on a flexible polymer substrate (e.g. flexible displays, photovoltaics, wide area sensors). This patent from Foxconn teaches one method of transferring carbon nanotubes from a rigid silicon substrate to a flexible substrate. Claim 1 reads:
1. A method for making a carbon nanotube device, comprising:
providing a rigid substrate with a plurality of carbon nanotube arrays grown thereon, the carbon nanotube arrays arranged in a predetermined pattern;
providing a flexible substrate with a plurality of recesses defined therein;
applying a curable adhesive in each recess; attaching the rigid substrate to the flexible substrate with the plurality of carbon nanotube arrays in contact with the curable adhesives;
curing the curable adhesives to fix the carbon nanotube arrays in the recesses; and
removing the rigid substrate, thereby obtaining the carbon nanotube device.
Labels: Hon Hai Precision Industry
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