1
|
Park H, Hwang J, Chae H, Kang DJ. Rapid In-Plane Pattern Growth for Large-Area Inverse Replication Through Electrohydrodynamic Instability of Polymer Films. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400155. [PMID: 38644332 DOI: 10.1002/smll.202400155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/25/2024] [Indexed: 04/23/2024]
Abstract
Nanopatterning driven by electrohydrodynamic (EHD) instability can aid in the resolution of the drawbacks inherent in conventional imprinting or other molding methods. This is because EHD force negates the requirement of physical contact and is easily tuned. However, its potential has not examined owing to the limited size of the pattern replica (several to tens of micrometers). Thus, this study proposes a new route for large-area patterning through high-speed evolution of EHD-driven pattern growth along the in-plane axis. Through the acceleration of the in-plane growth, while selectively controlling a specific edge growth, the pattern replica area can be extended from the micro- to centimeter scale with high fidelity. Moreover, even in the case of nonuniform contact mode, the proposed rapid in-plane growth mode facilitates uniform large-scale replication, which is not possible in conventional imprinting or other molding methods.
Collapse
Affiliation(s)
- Hyunje Park
- Research Institute of Basic Sciences, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Jaeseok Hwang
- Wonik IPS Semiconductor Research Center, 75, Jinwisandan-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do, 17709, Republic of Korea
| | - Heejoon Chae
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Dae Joon Kang
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| |
Collapse
|
2
|
Park H, Choi HY, Chae H, Noe Oo MM, Kang DJ. Electrohydrodynamic Nanopatterning: A Novel Solvent-Assisted Technique for Unconventional Substrates. NANO LETTERS 2023; 23:11949-11957. [PMID: 38079430 DOI: 10.1021/acs.nanolett.3c04177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Electrohydrodynamic (EHD)-driven patterning is a pioneering lithographic technique capable of replicating and modifying micro/nanostructures efficiently. However, this process is currently restricted to conventional substrates, as it necessitates a uniform and robust electric field over a large area. Consequently, the use of nontraditional substrates, such as those that are flexible, nonflat, or have high insulation, has been notably limited. In our study, we extend the applicability of EHD-driven patterning by introducing a solvent-assisted capillary peel-and-transfer method that allows the successful removal of diverse EHD-induced structures from their original substrates. Compared with the traditional route, our process boasts a success rate close to 100%. The detached structures can then be efficiently transferred to nonconventional substrates, overcoming the limitations of the traditional EHD process. Our method exhibits significant versatility, as evidenced by successful transfer of structures with engineered wettability and patterned structures composed of metals and metal oxides onto nonconventional substrates.
Collapse
Affiliation(s)
- Hyunje Park
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
- Research Institute of Basic Sciences, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Ha Young Choi
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Heejoon Chae
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - May Myat Noe Oo
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Dae Joon Kang
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| |
Collapse
|
3
|
Park H, Hwang J, Lee J, Kang DJ. Rapid Electrohydrodynamic-Driven Pattern Replication over a Large Area via Ultrahigh Voltage Pulses. ACS NANO 2023; 17:22456-22466. [PMID: 37939012 DOI: 10.1021/acsnano.3c05413] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Despite the prospects of electrohydrodynamic instability patterning (EHIP), poor process parameter controllability is a significant challenge in uniform large-scale nanopatterning. Herein, we introduce a EHIP process using an ultrahigh electric field (>108 V/m) to effectively accelerate the pattern growth evolution. Owing to the strong dependence on a temporal parameter (1/τm) of the field strength, our method not only reduces the completion time of pattern growth but also overcomes critical parametric restrictions on the pattern replication, thereby enhancing the replicated pattern quality in three dimensions. The pattern can be uniformly replicated over the entire film surface even without a perfectly uniform air gap, which has been severely difficult in the conventional method. To further demonstrate how straightforward yet versatile our approach is, we applied our EHIP approach to successfully replicate the densely packed nanostructures of cicada wings.
Collapse
Affiliation(s)
- Hyunje Park
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Jaeseok Hwang
- Wonik IPS Semiconductor Research Center, 75, Jinwisandan-ro, Jinwi-myeon, Pyeongtaek-si, Gyeonggi-do 17709, Republic of Korea
| | - Jaejong Lee
- Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-ro, Yuseong-gu, Daejeon 34103, Republic of Korea
| | - Dae Joon Kang
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| |
Collapse
|
4
|
Zhou S, Ren J, Tan J, Wang Y, Liu H, Zhang G, Li K, Zheng H, Liu S. Study on the Formation and Controllable Movement of Polymer Liquid Columns Based on Dynamic Control of Spatial Electric Field Distribution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15636-15642. [PMID: 37877665 DOI: 10.1021/acs.langmuir.3c01948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Liquid deformation and motion are very common natural phenomena and of great value in various practical applications. In this study, a dielectric fluid column formation and directional flow phenomenon are presented. Dielectric fluid can grow upward to form a liquid column through a spatial electric field and realize directional and controllable operation of the liquid column by regulating spatial electric field distribution. First, the adjustable electric field space is constructed by connecting the two parallel electrodes to the high-voltage DC power supply. Then, the regional electric field distribution was adjusted by the upper plate graphic and power supply regulation to drive the polymer liquid on the lower plate electrode to form a liquid column at different positions. The results show that the polymer liquid column can be driven by the spatial electric field distributed dynamic control method and that the height and the narrowest width of the liquid column are directly controlled by the voltage. With the experiment conditions that the distance between two parallel electrodes is 5-15 mm, the formation of liquid columns with a height of 5-15 mm can be controlled. In addition, the liquid column can be driven by adjusting the on-states of different conductive regions. When the voltage is 10 kV, the liquid column directional movement speed can reach 1 mm/s. The higher the voltage, the faster the directional movement. The research results can be used as producing polydimethylsiloxane stamp, localized heating and temperature control, fabricating a pulsating heat pipe, and so on.
Collapse
Affiliation(s)
- Shangru Zhou
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
- Hunan Engineering Research Center of Research and Development of Degradable Materials and Molding Technology, Changsha University, Changsha 410022, China
| | - Jie Ren
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Jiahao Tan
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Yiming Wang
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Haojie Liu
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Gaofeng Zhang
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Kun Li
- College of Electromechanical Engineering, Changsha University, Changsha 410022, China
| | - Huai Zheng
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| | - Sheng Liu
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
| |
Collapse
|
5
|
Lv G, Tian H, Shao J, Yu D. Pattern formation in thin polymeric films via electrohydrodynamic patterning. RSC Adv 2022; 12:9681-9697. [PMID: 35424937 PMCID: PMC8959450 DOI: 10.1039/d2ra01109c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 03/21/2022] [Indexed: 11/21/2022] Open
Abstract
The free surface of a thin polymeric film is often unstable and deforms into various micro-/nano-patterns under an externally applied electric field. This paper reviews a recent patterning technique, electrohydrodynamic patterning (EHDP), a straightforward, cost-effective and contactless bottom-up method. The theoretical and numerical studies of EHDP are shown. How the characteristic wavelength and the characteristic time depend on both the external conditions (such as voltage, film thickness, template-substrate spacing) and the initial polymer properties (such as rheological property, electrical property and surface tension) is theoretically and experimentally discussed. Various possible strategies for fabricating high-aspect-ratio or hierarchical patterns are theoretically and experimentally reviewed. Aligning and ordering of the anisotropic polymers by EHDP is emphasized. A perspective, including novelty and limitations of the methods, particularly in comparison to some conventional patterning techniques, and a possible future direction of research, is presented.
Collapse
Affiliation(s)
- Guowei Lv
- School of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipments, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
- Xi'an Aerospace Chemical Propulsion Co., Ltd. Xi'an 710025 Shaanxi P. R. China
| | - Hongmiao Tian
- State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Jinyou Shao
- State Key Laboratory of Manufacturing Systems Engineering, Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| | - Demei Yu
- School of Chemistry, State Key Laboratory of Electrical Insulation and Power Equipments, MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, Xi'an Jiaotong University Xi'an 710049 Shaanxi P. R. China
| |
Collapse
|