Highresolution electrohydrodynamic jet printing university. An organic small molecule, 2tbutyl9, 10bis 20naphthyl anthracene tbadn was printed as the emitting layer with controlled thicknesses and dimensions. Here, we describe the use of electrohydrodynamically induced fluid flows through finemicrocapillary nozzles for jet. Electrohydrodynamic jet ejet printing, an additive manufacturing process which uses an electric field to induce jetting from a microcapillary nozzle, is an attractive. Development of a highresolution printing technology. Until now, highresolution e jet printing has used this natural pulsation and is. Provided are highresolution electrohydrodynamic inkjet e jet printing systems and related methods for printing functional materials on a substrate surface.
Highresolution electrohydrodynamic jet printing for the. Electrohydrodynamic jet printing of microoptical devices. This paper discusses the design, integration and operation of a unique e jet printing platform. Ehd jet printing can produce droplets much smaller than the size of the nozzle. May 29, 2019 the aim of this work is to simulate the formation of coaxial electrohydrodynamic jet cejet and obtain the optimized working parameters for coaxial electrohydrodynamic focused jet printing cefjp, then further direct writing nanoscale structures.
Here we demonstrate materials and operating conditions that allow for highresolution printing of layers of quantum dots qds with precise control over thickness and submicron lateral resolution and capabilities for use as active layers of qd lightemitting diodes leds. Provided are various methods and devices for electrohydrodynamic e jet printing. Ehd printing uses a fluidic supplier to maintain the extruded meniscus by pushing the ink out of the nozzle tip. A desktop electrohydrodynamic jet printing system with integrated highresolution sensing and control. E jet printing is a nanomanufacturing process that uses electric field induced fluid jet printing through nanoscale nozzles for achieving better control and resolution than traditional jet printing processes. Logic operations of the amplifier circuits composed of these e jet printed metal. Scaling laws for jet pulsations associated with high resolution electrohydrodynamic printing hong kyoon choi,1 jangung park,2 o ok park,1,a placid m. High resolution electrohydrodynamic jet printing for the direct fabrication of 3d multilayer terahertz metamaterial of high refractive index hadi teguh yudistira 1, ayodya pradhipta tenggara 1, sang soon oh 2, vudat nguyen 3, muhan choi 4, choongi choi 5,6 and doyoung byun 1. Sep 09, 2015 mechanisms, capabilities, and applications of high resolution electrohydrodynamic jet printing.
Numerical modeling of high resolution electrohydrodynamic jet printing using openfoam. Sammons, kira barton university of michigan, ann arbor, mi 48109 mechanical engineering department abstract polycaprolactone pcl is a biocompatible and biodegradable polymer that is commonly. Pdf efforts to adapt and extend graphic arts printing techniques for demanding device applications in electronics, biotechnology and. Development of a highresolution printing technology, suitable for nanocemms toolbit. Articles highresolution electrohydrodynamic jet printing jangung park1, matt hardy1, seong jun kang1,2, kira barton3, kurt adair3, deep kishore mukhopadhyay3, chang young lee4. In this paper, we report the onestep maskless fabrication. A desktop electrohydrodynamic jet printing system rogers. The ehd jet process uses the high dc voltage applied at the nozzle part. Its printing resolution exceeds by about two orders of magnitude in comparison to the conventional inkjet printing. If you receive a passwordprotected pdf, enter the designated password to print the document. Articles highresolution electrohydrodynamic jet citeseerx. Some protected documents have restrictions that prevent you from printing, editing, or copying content in the document. Highresolution electrohydrodynamic inkjet printing of.
A desktop electrohydrodynamic jet printing system with integrated high resolution sensing and control sandipan mishra, kira barton, and andrew alleyne mechanical science and engineering department, university of illinois, urbana, il 61801 usa abstract this paper discusses the design and integration of a desktop system with sensing and control ca. Exposure to an electric field causes mobile ions in a polarizable liquid to accumulate at the liquid surface. This example presents a high resolution form of electrohydrodynamic jet printing that is suitable for use with wide ranging classes of inks and for device applications in printed electronics and other areas. This paper discusses the development of a sensing and feedbackfeedforward control system for electrohydrodynamic jet ejet printing. There is urgent requirement for a lowcost, high efficiency, and high precision technique to manufacture high quality mnlas to meet their diverse and personalized applications. Apr 11, 2014 highresolution electrohydrodynamic jet printing is a cost effective, flexible, multimaterial, highresolution sub 10. When, the electrohydrodynamic flow is choked at the nozzle because the intermittent jet, when on, emits mass at the minimum flow rate. Electrohydrodynamic ehdinkjet printing is a novel high resolution inkjet printing technology with the advantages of being a maskless, noncontact, directwrite and additive process. With the jet droplet diameter significantly smaller than the nozzle size, ehd printing can overcome the resolution limitation from. Osa crossscale additive directwriting fabrication of. Numerical simulation of coaxial electrohydrodynamic jet and.
Combination of ejet and inkjet printing for additive. In this context, we propose a novel and efficient method called tipassisted electrohydrodynamic ehd printing that combines the tipassisted electric field intensity enhancement effect and the highresolution capability of ehd printing. Articles highresolution electrohydrodynamic jet printing jangung park1, matt hardy1, seong jun kang1,2, kira barton3, kurt adair3, deep kishore mukhopadhyay3, chang young lee4, michael s. High quality micronanolens arrays mnlas are becoming irreplaceable components of various compact and miniaturized optical systems and functional devices. In this paper, we present an ejet printing mode capable of high speeds and independent control of the droplet size and printing frequency.
Control of highresolution electrohydrodynamic jet printing. This study describes electrohydrodynamic inkjet ejet technology for direct printing of oxide semiconductor thin film transistors tfts with high resolution minimum line width. Mechanisms, capabilities and applications of highresolution electrohydrodynamic jet printing home seminar mechanisms, capabilities and applications of highresolution electrohydrodynamic jet printing. Electrohydrodynamic jet ejet printing has emerged as a highresolution alternative to.
Highresolution electrohydrodynamic jet printing of smallmolecule. Highresolution electrohydrodynamic jet printing for printed. Related content direct fabrication of highresolution threedimensional polymeric scaffolds using. Such methods enable the direct, additive patterning of materials with a resolution that can extend below 100 nm. Abstract electrohydrodynamic ehdinkjet printing is a novel high resolution inkjet printing technology with the advantages of being a maskless, noncontact, directwrite and additive process. Ehd jet printing, a stateoftheart dropondemand printing technique 2325, has recently drawn substantial attention as a highresolution patterning technique in microelectronics. Highresolution patterns of quantum dots formed by electrohydrodynamic jet printing for lightemitting diodes. Electrohydrodynamic ehd jet printing has drawn attention in various fields because it can be used as a high resolution and lowcost direct patterning tool. Rogers2,b 1department of chemical and biomedical engineering, bk21 graduate program of kaist, korea. Superresolution electrohydrodynamic ehd 3d printing of. Printing of complex patterns of inks, ranging from insulating and conducting polymers, to solution suspensions of silicon nanoparticles and rods, to singlewalled carbon nanotubes, using integrated computercontrolled printer systems illustrates some.
At the university of illinois at urbanachampaign, uiuc, a high resolution technique for printing was developed and also a desktop system designed and. Mechanisms, capabilities, and applications of highresolution electrohydrodynamic jet printing. Scaling laws for jet pulsations associated with high. Such methods enable the direct, additive patterning of materials with a resolution that can extend below 100 nm to provide unique opportunities not only in scientific studies but also in a range of applications that includes printed electronics, tissue. Mechanisms, capabilities, and applications of highresolution. Us9061494b2 high resolution electrohydrodynamic jet. Resolution and controllable nanodeposition pattern of ag nanoparticles by electrohydrodynamic jet printing combined with coffee ring effect. Electrohydrodynamic jet printing as a route to highresolution patterns of qds. Highresolution acpulse modulated electrohydrodynamic jet. Highresolution patterns of quantum dots with ejet printing. A strong electric field is applied between the nozzle and the substrate, which induces charges on the surfaces of the ink meniscus. Here, we report an electrohydrodynamic jet e jet printing method to fabricate smallmolecule oled pixels with high resolution pixel width of 5.
Highresolution electrohydrodynamic jet printing nature. Citeseerx document details isaac councill, lee giles, pradeep teregowda. The electrohydrodynamic jet e jet printing process combines high resolution printing with a large variety of printing materials, making e jet suitable for applications ranging from. Onses ms1, sutanto e2, ferreira pm3, alleyne ag3, rogers ja4. Highresolutionsupporting electrohydrodynamic information jet. The nozzle is electrically connected to a voltage source that applies an electric charge to the fluid in the. Electrohydrodynamic ehd jet printing has a variety of benefits compared to conventional inkjet techniques, such as high resolution and.
Ejet printing is a nanomanufacturing process that uses electric field induced fluid jet printing through nanoscale nozzles for achieving better control and resolution than traditional jet printing processes. The two regimes are demarcated by the ratio of the supplied flow rate to the minimum flow rate required for a steady taylor cone jet. In this paper, we present an electric field shaping printhead capable of controlled highresolution sub 10. If a document has restrictions on printing, contact the pdf author. Provided are high resolution electrohydrodynamic inkjet e jet printing systems and related methods for printing functional materials on a substrate surface. The shapes and thicknesses of the qd patterns exhibit systematic dependence on the dimensions of the printing nozzle and. A highresolution electrohydrodynamic jet printing system. Use, distribution and reproduction of this document by permission only. Logic operations of the amplifier circuits composed of these ejetprinted metal.
At the university of illinois at urbanachampaign, uiuc, a high resolution technique. This approach presents opportunities for further research with strong potential of applications in various fields such as printed electronics, tissue engineering, and photonic devices. Highresolution ejet printing with printed feature sizes in the range from. Printed 3d structures can have a variety of fine patterns, such as vertical or helix. Highresolution electrohydrodynamic jet printing of molten. Numerical modeling of high resolution electrohydrodynamic. This might be enough when printing connections between the abstract the additive nature and high resolution of electrohydrodynamic inkjet e jet printing can be utilized for manufacturing micron scale conductive tracks such as those required in the highdensity redistribution layers rdl of silicon. The sensing and control provides e jet printing having improved print resolution and precision compared to conventional openloop methods. Electrohydrodynamic ehd printing, become a viable high resolution printing approach, in which the ink is subjected to electrostatic field to form a taylorcone and produce a fine jet or droplet from the cone.
Highresolution patterns of quantum dots with e jet printing 28 january 2015, by nancy owano a team of 17 materials science and engineering researchers from the university of illinois at. Pdf electrohydrodynamic inkjet printing of oled pixel. High resolution printed metal interconnects, electrodes and probing pads for representative circuit patterns and functional transistors with critical dimensions as small as 1 mum demonstrate potential applications in printed electronics. We fabricated the oled devices with highresolution pixels with the minimum dimension of 5 30. Here, we report an electrohydrodynamic jet ejet printing method to fabricate smallmolecule oled pixels with high resolution pixel width of 5. In this paper, a pioneering simulation of cejet process based on three phase flow of liquidliquidair model was developed.
Oct 15, 2015 provided are high resolution electrohydrodynamic inkjet e jet printing systems and related methods for printing functional materials on a substrate surface. High resolutionsupporting electrohydrodynamic information jet printing of smallmolecule organic lightemitting diodes kukjoo kim, gyeomuk kim, bo ram lee, sangyoon ji, soyun kim, byeong wan an. In this article, we explore a novel e jet printing application fabricating highresolution microoptical devices. A high resolution electrohydrodynamic jet printing system. High resolution electrohydrodynamic jet printing of molten polycaprolactone patrick m.
The methods relate to sensing of an output current during printing to provide control of a process parameter during printing. Highresolution electrohydrodynamic jet printing of small. Highresolution acpulse modulated electrohydrodynamic jet printing on highly insulating substrates to cite this article. Highspeed and dropondemand printing with a pulsed electrohydrodynamic jet.
Efforts to adapt and extend graphic arts printing techniques for demanding device applications in electronics, biotechnology and microelectromechanical systems have grown rapidly in recent years. Submicron printing resolutions with superior resolution vs. This study describes electrohydrodynamic inkjet e jet technology for direct printing of oxide semiconductor thin film transistors tfts with high resolution minimum line width. Electrohydrodynamic ehd jet printing has a variety of benefits compared to conventional inkjet techniques, such as high resolution and the ability to work with highviscosity pastes.
A multimaterial electrohydrodynamic jet ejet printing. Electrohydrodynamic jet printing offers advantages such as high resolution over more traditional manufacturing printing techniques, but lacks in the high throughput that is demanded by industry. Nonthermal process can print temperature sensitive materialsinks c. Electrohydrodynamic jet e jet printing is a micronanoscale additive manufacturing. Coaxial nozzleassisted electrohydrodynamic printing for. Us9278522b2 high resolution sensing and control of. Electrohydrodynamic jet printing ejet printing is a growing high resolution pdf hongtao liang, jiankang he, jinke chang, bing zhang, dichen li. In 39th north american manufacturing research conference 2011 transactions of the north american manufacturing research institution of sme pp.
The controlled patterning of microdroplets or microwires at precise positions plays an essential role in micronano device applications. Transactions of the north american manufacturing research institution of. Directly write metallic contacts without the need for metallic inks that need to be annealed at high temperatures. High resolution electrohydrodynamic jet printing for. Coaxial nozzleassisted electrohydrodynamic printing for microscale 3d cellladen constructs views 1561 abstract 592 pdf hongtao liang, jiankang he, jinke chang, bing zhang, dichen li. To the best of our knowledge, this is the first study to exploit ehd jet printing in the mscs. Ehd has been used to achieve fine structures with high aspect ratios in fields ranging from micro and. Tipassisted electrohydrodynamic jet printing for high. Highresolution electrohydrodynamic jet printing of molten polycaprolactone patrick m. Electrohydrodynamic jet ejet printing has emerged as a high resolution alternative to. Electrohydrodynamic jet e jet printing has emerged as a highresolution alternative to other forms of direct solutionbased fabrication approaches, such as ink jet printing. Electrohydrodynamic jet printing ehd has emerged in recent years as one of the most competitive high resolution, noncontact additive manufacturing techniques. One of the major advantages of additive manufacturing is its ability to print on already fabricated devices. Aug 04, 2011 provided are high resolution electrohydrodynamic inkjet e jet printing systems and related methods for printing functional materials on a substrate surface.
Electrohydrodynamic jet e jet printing is a high resolution printing technology where the printed liquid is driven by an electric field. The methodology involves producing a thin, intact jet by electric field and writing with the jet on substrates to produce complex patterns. A vector printing method for highspeed electrohydrodynamic. The advantages over conventional ink jet lie mainly in. Pdf a desktop electrohydrodynamic jet printing system with. This paper discusses a runtorun iterative learning control ilc algorithm for electrohydrodynamic jet e jet printing. Mechanisms, capabilities, and applications of high. Electrohydrodynamic ehd printing was employed here to fabricate conductive micro patterns for printed electronic devices. Electrohydrodynamic jet printing is an additive fabrication approach that enables direct patterning of materials in liquid form with nanoscale resolution. Highresolution electricfielddriven jet 3d printing and. Highresolution electrohydrodynamic jet printing article pdf available in nature materials 610. Articles high resolution electrohydrodynamic jet printing jangung park1, matt hardy1, seong jun kang1,2, kira barton3, kurt adair3, deep kishore mukhopadhyay3, chang young lee4, michael s.
In an embodiment, a nozzle with an ejection orifice that dispenses a printing fluid faces a surface that is to be printed. Ehd printing offers fine pattern fabrication through additive manufacturing that has several advantages when compared to conventional lithographic techniques. Electrohydrodynamic ehd jet printing is a high resolution printing technology. Resolution and controllable nanodeposition pattern of. Article pdf available in journal of micromechanics and microengineering 224 april. This thesis describes the development of a new ink jet technology electrohydrodynamic printing, which offers a direct and flexible approach for high resolution patterning.
Pdf a multimaterial electrohydrodynamic jet ejet printing system. Highresolution e jet printing with printed feature sizes in the range from. Mechanisms, capabilities and applications of highresolution. This paper discusses the development of a sensing and feedbackfeedforward control system for electrohydrodynamic jet e jet printing. Pdf highresolution electrohydrodynamic jet printing.
Mar 28, 2016 based on the specific electrostatic force, enano printing system can provide you. Its printing resolution exceeds by about two orders of magnitude in comparison to the conventional inkjet printing systems. High aspect ratio using ehd electrohydrodynamic jet printing. Transactions of the north american manufacturing research institution of sme.