Confined wetting of water on CNT web patterned surfaces
We report the formation of a thin liquid film of pre-determined shape that is achieved through wetting of water on a silicon surface patterned with aligned carbon nanotube arrays or CNT webs. We measured the profiles of liquid films on two types of silicon substrate surfaces (namely, with and withou...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2017
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| Online Access: | https://hdl.handle.net/10356/86685 http://hdl.handle.net/10220/44171 |
| _version_ | 1826123169593819136 |
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| author | Zhao, Yugang Lin, Rongzhou Tran, Tuan Yang, Chun |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Zhao, Yugang Lin, Rongzhou Tran, Tuan Yang, Chun |
| author_sort | Zhao, Yugang |
| collection | NTU |
| description | We report the formation of a thin liquid film of pre-determined shape that is achieved through wetting of water on a silicon surface patterned with aligned carbon nanotube arrays or CNT webs. We measured the profiles of liquid films on two types of silicon substrate surfaces (namely, with and without a patterned CNT web) using monochrome interferometry. We found that the CNT web patterned surface produces a much thinner liquid film with a well-controlled shape due to the roughness-induced wetting enhancement on the CNT web and the anchoring effect of contact lines at morphological edges. We further used a thermodynamic surface energy based model to interpret our experimental observations and to elucidate the underlying mechanism of wetting enhancement induced by the CNT web. Our study provides a promising approach for forming thin liquid films of controllable pre-determined shape that has numerous potential applications. |
| first_indexed | 2024-10-01T06:00:16Z |
| format | Journal Article |
| id | ntu-10356/86685 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:00:16Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/866852023-03-04T17:16:11Z Confined wetting of water on CNT web patterned surfaces Zhao, Yugang Lin, Rongzhou Tran, Tuan Yang, Chun School of Mechanical and Aerospace Engineering Interfaces Thin Flims We report the formation of a thin liquid film of pre-determined shape that is achieved through wetting of water on a silicon surface patterned with aligned carbon nanotube arrays or CNT webs. We measured the profiles of liquid films on two types of silicon substrate surfaces (namely, with and without a patterned CNT web) using monochrome interferometry. We found that the CNT web patterned surface produces a much thinner liquid film with a well-controlled shape due to the roughness-induced wetting enhancement on the CNT web and the anchoring effect of contact lines at morphological edges. We further used a thermodynamic surface energy based model to interpret our experimental observations and to elucidate the underlying mechanism of wetting enhancement induced by the CNT web. Our study provides a promising approach for forming thin liquid films of controllable pre-determined shape that has numerous potential applications. MOE (Min. of Education, S’pore) Published version 2017-12-20T08:00:51Z 2019-12-06T16:27:18Z 2017-12-20T08:00:51Z 2019-12-06T16:27:18Z 2017 Journal Article Zhao, Y., Lin, R., Tran, T., & Yang, C. (2017). Confined wetting of water on CNT web patterned surfaces. Applied Physics Letters, 111(16), 161604-. 0003-6951 https://hdl.handle.net/10356/86685 http://hdl.handle.net/10220/44171 10.1063/1.4999438 en Applied Physics Letters © 2017 American Institute of Physics(AIP). This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of Applied Physics Letters. The published version is available at:[http://dx.doi.org/10.1063/1.4999438]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. 5 p. application/pdf |
| spellingShingle | Interfaces Thin Flims Zhao, Yugang Lin, Rongzhou Tran, Tuan Yang, Chun Confined wetting of water on CNT web patterned surfaces |
| title | Confined wetting of water on CNT web patterned surfaces |
| title_full | Confined wetting of water on CNT web patterned surfaces |
| title_fullStr | Confined wetting of water on CNT web patterned surfaces |
| title_full_unstemmed | Confined wetting of water on CNT web patterned surfaces |
| title_short | Confined wetting of water on CNT web patterned surfaces |
| title_sort | confined wetting of water on cnt web patterned surfaces |
| topic | Interfaces Thin Flims |
| url | https://hdl.handle.net/10356/86685 http://hdl.handle.net/10220/44171 |
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