期刊
MICROELECTRONIC ENGINEERING
卷 87, 期 12, 页码 2513-2517出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mee.2010.06.001
关键词
Electrospinning; Micro-contact printing; Pattern transfer
资金
- European Commission [CP-FP 214566-2]
- French National Research Agency [ANR-piribio09_453344]
- Chinese Scholar Council
- region of Ile-de-France
- Grants-in-Aid for Scientific Research [22350104] Funding Source: KAKEN
We report on the results of a parametric optimization of micro-contact printing based thermal transfer of electrospun nanofibers. Fiber electrospinning was performed with a solution of thermoplastic polymer and a collector having a rectangular open area. After electrospinning, a piece of elastomer polydimethylsiloxane (PDMS) was used to scratch nanofibers from the open area and to thermally transfer them to the surface of a glass substrate by micro-contact printing at a temperature slightly higher than the glass transition temperature of the polymer. With the help of optical measurements, we optimized the printing conditions including the temperature and printing duration. Then, the stability of the transferred nanofibers was studied with sonication at different power rates. As expected, the printed nanofibers showed a much enhanced adhesion stability, comparing to the as-deposited nanofibers. Furthermore, the nanofibers after thermal transfer could be used for patterning by using conventional photolithography and reactive ion etch techniques. (C) 2010 Elsevier B.V. All rights reserved.
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