METHOD FOR MOVING AND TRANSFERRING NANOWIRES USING TAPERED HAIR OF DIAMETER ON MICRON RANGE
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United States of America
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Mar 12, 2020
app pub date -
Nov 15, 2017
filing date -
Nov 15, 2017
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Abstract
The present invention provides a method for moving and transferring nanowires using tapered hair of diameter in micron range. The nanowires have a diameter of 60-150 nm. The tapered hair has a diameter of 1-100 μm, a tip curvature radius of 0.8-3 μm and a length of 4-10 mm. A plastic film on a copper grid used for a TEM is removed, the copper grid is reserved, and holes have a diameter of 50-100 μm. The copper grid after ultrasonic cleaning gains the nanowires from the acetone liquid with ultrasonic dispersed nanowires. The copper grid with distributed nanowires and the tapered hair are respectively placed on mobile platforms of two different optical microscopes. Millimeter movement and micron movement of the tapered hair are realized, thereby realizing movement and transfer operation for the nanowires. The tip of the tapered hair is dipped in a small drop of conductive silver epoxy, and the conductive silver epoxy is respectively dropped on both ends of the nanowires; and the radius of the dropped conductive silver epoxy is 4-8 μm. The present invention realizes a method for moving and transferring nanowires using tapered hair through the mobile platforms of the two optical microscopes.
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