Polymer tips for application of atomic force microscopy |
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| Institution: | 1. Department of Chemical Engineering, Kyunghee University, Kyungki-Do 449-701, Republic of Korea;2. Department of Chemical Engineering, Dong-A University, Busan 604-714, Republic of Korea;3. Department of Chemical Engineering, Chungnam National University, Daejeon 305-764, Republic of Korea;4. School of Bionics, Tokyo University of Technology, Katakura, Hachioji, Tokyo 192-0982, Japan |
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| Abstract: | A hydrophobic polymer tip for atomic force microscopy has been fabricated by two-photon adsorbed photopolymerization techniques and has been applied for the high resolution imaging of a hydrophilic metal surface. Using optimized photopolymerization conditions, we have succeeded in fabricating sub-100-nm sized polymer tips. This fabricating resolution of two-photon adsorbed photopolymerization is also confirmed by other supporting experiments. The imaging results show that the capillary-force-induced image distortion can be successfully removed by applying a pure hydrophobic polymer tip with a lateral resolution better than 5 nm, which is difficult to achieve with a commercial tip without any environmental control. |
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