Micro/Nano Printing Technology and Devices

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E:Engineering and Technology".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 3214

Special Issue Editor

School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China
Interests: micro/nano printing; micro/nano devices; piezoelectric microsystems; flexible electronic devices

Special Issue Information

Dear Colleagues,

Recent advances in micro/nanoscale printing technologies have brought promising improvements in the application of micro-/nanoscale devices. This allows researchers to rapidly print versatile micro- and nanostructures that have previously been difficult to create, enabling a wide range of applications, such as flexible displays, optical sensors, energy devices, microfluidic devices, and high-performance devices, for medical or industrial purposes. Despite recent improvements in printing techniques, printed micro-/nanodevices still have several obstacles to overcome in terms of possible application area, utilizable materials, and available manufacturing processes for better performance. In order to enhance the performance and reliability of electronic devices, some advanced technologies have been proposed and developed in micro-/nanoscale devices, including inkjet printing, electrohydrodynamic (EHD) printing, and laser direct writing, and can be optimized by means of theoretical analysis, simulation, and experiments.

This Special Issue seeks to showcase research papers and review articles that discuss recent developments in printing technologies and applications of advanced micro- and nanosystems, including novel sensor systems, microreactors, nanostructures, nanomachines, functional surfaces, integrated optics, displays, communications technology, biochips, human–machine interfaces, prosthetics, miniaturized medical, surgery equipment, and new applications. Areas of interest include, but are not limited to, the following:

  • Micro/nano printing technologies;
  • Micro/nano printing instruments;
  • Printing simulation;
  • Printing mechanisms;
  • Micro/nano devices;
  • New applications.

Prof. Dr. Dazhi Wang
Guest Editor

Manuscript Submission Information

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Keywords

  • micro/nano printing technologies
  • micro/nano printing instruments
  • printing simulation
  • printing mechanisms
  • micro/nano devices

Published Papers (2 papers)

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Research

11 pages, 2930 KiB  
Article
PZT Composite Film Preparation and Characterization Using a Method of Sol-Gel and Electrohydrodynamic Jet Printing
by Yan Cui, Hao Yu, Zeshan Abbas, Zixiang Wang, Lunxiang Wang and Dazhi Wang
Micromachines 2023, 14(5), 918; https://doi.org/10.3390/mi14050918 - 24 Apr 2023
Cited by 3 | Viewed by 1525
Abstract
Lead zircon titanate (PZT) composite films were advantageously prepared by a novel hybrid method of sol-gel and electrohydrodynamic jet (E-jet) printing. PZT thin films with thicknesses of 362 nm, 725 nm and 1092 nm were prepared on Ti/Pt bottom electrode via Sol-gel method, [...] Read more.
Lead zircon titanate (PZT) composite films were advantageously prepared by a novel hybrid method of sol-gel and electrohydrodynamic jet (E-jet) printing. PZT thin films with thicknesses of 362 nm, 725 nm and 1092 nm were prepared on Ti/Pt bottom electrode via Sol-gel method, and then the PZT thick films were printed on the base of the PZT thin films via E-jet printing to form PZT composite films. The physical structure and electrical properties of the PZT composite films were characterized. The experimental results showed that, compared with PZT thick films prepared via single E-jet printing method, PZT composite films had fewer micro-pore defects. Moreover, the better bonding with upper and lower electrodes and higher preferred orientation of crystals were examined. The piezoelectric properties, dielectric properties and leakage currents of the PZT composite films were obviously improved. The maximum piezoelectric constant of the PZT composite film with a thickness of 725 nm was 69.4 pC/N, the maximum relative dielectric constant was 827 and the leakage current was reduced to 1.5 × 10−6A at a test voltage of 200V. This hybrid method can be widely useful to print PZT composite films for the application of micro-nano devices. Full article
(This article belongs to the Special Issue Micro/Nano Printing Technology and Devices)
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21 pages, 5548 KiB  
Article
Computational Study of Drop-on-Demand Coaxial Electrohydrodynamic Jet and Printing Microdroplets
by Zeshan Abbas, Dazhi Wang, Liangkun Lu, Yikang Li, Changchang Pu, Xiangji Chen, Pengfei Xu, Shiwen Liang, Lingjie Kong and Bin Tang
Micromachines 2023, 14(4), 812; https://doi.org/10.3390/mi14040812 - 02 Apr 2023
Cited by 2 | Viewed by 1318
Abstract
Currently, coaxial electrohydrodynamic jet (CE-Jet) printing is used as a promising technique for the alternative fabrication of drop-on-demand micro- and nanoscale structures without using a template. Therefore, this paper presents numerical simulation of the DoD CE-Jet process based on a phase field model. [...] Read more.
Currently, coaxial electrohydrodynamic jet (CE-Jet) printing is used as a promising technique for the alternative fabrication of drop-on-demand micro- and nanoscale structures without using a template. Therefore, this paper presents numerical simulation of the DoD CE-Jet process based on a phase field model. Titanium lead zirconate (PZT) and silicone oil were used to verify the numerical simulation and the experiments. The optimized working parameters (i.e., inner liquid flow velocity 150 m/s, pulse voltage 8.0 kV, external fluid velocity 250 m/s, print height 16 cm) were used to control the stability of the CE-Jet, avoiding the bulging effect during experimental study. Consequently, different sized microdroplets with a minimum diameter of ~5.5 µm were directly printed after the removal of the outer solution. The model is considered the easiest to implement and is powerful for the application of flexible printed electronics in advanced manufacturing technology. Full article
(This article belongs to the Special Issue Micro/Nano Printing Technology and Devices)
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