Three dimensional ZnO nanostructures realized through a polymer mediated aqueous chemical route: candidate for transparent flexible electronics

CrystEngComm ◽  
2012 ◽  
Vol 14 (23) ◽  
pp. 8244 ◽  
Author(s):  
Soumen Maiti ◽  
Uday Narayan Maiti ◽  
Kalyan Kumar Chattopadhyay
Keyword(s):  
Flexible Electronics ◽  
Three Dimensional ◽  
Zno Nanostructures ◽  
Chemical Route

Fabrication of 3D Temperature Sensor Using Magnetostrictive Inkjet Printhead

2020 ◽  
Vol 64 (5) ◽  
pp. 50405-1-50405-5
Author(s):  
Young-Woo Park ◽  
Myounggyu Noh
Keyword(s):  
Flexible Electronics ◽  
Inkjet Printing ◽  
Temperature Sensor ◽  
Computer Aided Design ◽  
Low Cost ◽  
Three Dimensional ◽  
Drop On Demand ◽  
Aided Design ◽  
Nanoparticle Ink ◽  
Inkjet Printhead

Abstract Recently, the three-dimensional (3D) printing technique has attracted much attention for creating objects of arbitrary shape and manufacturing. For the first time, in this work, we present the fabrication of an inkjet printed low-cost 3D temperature sensor on a 3D-shaped thermoplastic substrate suitable for packaging, flexible electronics, and other printed applications. The design, fabrication, and testing of a 3D printed temperature sensor are presented. The sensor pattern is designed using a computer-aided design program and fabricated by drop-on-demand inkjet printing using a magnetostrictive inkjet printhead at room temperature. The sensor pattern is printed using commercially available conductive silver nanoparticle ink. A moving speed of 90 mm/min is chosen to print the sensor pattern. The inkjet printed temperature sensor is demonstrated, and it is characterized by good electrical properties, exhibiting good sensitivity and linearity. The results indicate that 3D inkjet printing technology may have great potential for applications in sensor fabrication.

Three-Dimensional Graphene Structure for Healable Flexible Electronics Based on Diels–Alder Chemistry

2018 ◽  
Vol 10 (11) ◽  
pp. 9727-9735 ◽  
Author(s):  
Jinhui Li ◽  
Qiang Liu ◽  
Derek Ho ◽  
Songfang Zhao ◽  
Shuwen Wu ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
Three Dimensional ◽  
Diels Alder

A Review on Thermal Evaporation Method to Synthesis Zinc Oxide as Photocatalytic Material

2021 ◽  
Vol 31 ◽  
pp. 55-63
Author(s):  
Najiha Hamid ◽  
Syahida Suhaimi ◽  
Muhammad Zamir Othman ◽  
Wan Zakiah Wan Ismail
Keyword(s):  
Zinc Oxide ◽  
Vapour Deposition ◽  
Thermal Evaporation ◽  
Three Dimensional ◽  
Oxide Material ◽  
Physical Vapour Deposition ◽  
Evaporation Process ◽  
Zno Nanostructures ◽  
Thermal Evaporation Method ◽  
Photocatalytic Material

Zinc oxide (ZnO) is a metal oxide material that is interested in research due to its possibility of bandgap tailoring, doping with various types of materials as well as being able to form many structures from zero-dimensional to three-dimensional structures. All these properties allow ZnO to be used in broad applications. Several research studies have been reported on the synthesis of ZnO nanostructures by the physical vapour deposition (PVD) technique. One of the potential PVD technique is thermal evaporation process. Generally, the technique is used to grow thin-film but researchers have found a potential to be used in the growth of nanostructures due to the ability to provide high crystallinity with homogeneous and uniform nanostructures. This analysis will therefore explore more about the thermal evaporation synthesized ZnO nanostructures and the application as photocatalyst material in wastewater treatment.

scholarly journals Geometric and Kinematic Analyses and Novel Characteristics of Origami-Inspired Structures

Symmetry ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1101 ◽  
Author(s):  
Yao Chen ◽  
Jiayi Yan ◽  
Jian Feng
Keyword(s):  
Flexible Electronics ◽  
Kinematic Analysis ◽  
Three Dimensional ◽  
Research Progress ◽  
The Novel ◽  
Pattern Design ◽  
Research Directions ◽  
Practical Engineering ◽  
Kinematic Analyses ◽  
The Common

In recent years, origami structures have been gradually applied in aerospace, flexible electronics, biomedicine, robotics, and other fields. Origami can be folded from two-dimensional configurations into certain three-dimensional structures without cutting and stretching. This study first introduces basic concepts and applications of origami, and outlines the common crease patterns, whereas the design of crease patterns is focused. Through kinematic analysis and verification on origami structures, origami can be adapted for practical engineering. The novel characteristics of origami structures promote the development of self-folding robots, biomedical devices, and energy absorption members. We briefly describe the development of origami kinematics and the applications of origami characteristics in various fields. Finally, based on the current research progress of crease pattern design, kinematic analysis, and origami characteristics, research directions of origami-inspired structures are discussed.

Synthesis of Graphene-ZnO Heterogeneous Nanostructures by Chemical Vapor Deposition

2011 ◽  
Vol 1348 ◽  
Author(s):  
Jian Lin ◽  
Miroslav Penchev ◽  
Guoping Wang ◽  
Rajat K Paul ◽  
Jiebin Zhong ◽  
...  
Keyword(s):  
Optical Properties ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Three Dimensional ◽  
Chemical Vapor ◽  
Building Blocks ◽  
Zno Nanostructures ◽  
Large Area ◽  
Graphene Layers

ABSTRACTIn this work, we report the synthesis and characterization of three dimensional heterostructures graphene nanostructures (HGN) comprising continuous large area graphene layers and ZnO nanostructures, fabricated via chemical vapor deposition. Characterization of large area HGN demonstrates that it consists of 1-5 layers of graphene, and exhibits high optical transmittance and enhanced electrical conductivity. Electron microscopy investigation of the three dimensional heterostructures shows that the morphology of ZnO nanostructures is highly dependent on the growth temperature. It is observed that ordered crystalline ZnO nanostructures are preferably grown along the <0001> direction. Ultraviolet spectroscopy indicates that the CVD grown HGN layers has excellent optical properties. A combination of electrical and optical properties of graphene and ZnO building blocks in ZnO based HGN provides unique characteristics for opportunities in future optoelectronic devices.

4D printing of a self-morphing polymer driven by a swellable guest medium

Soft Matter ◽  
2018 ◽  
Vol 14 (5) ◽  
pp. 765-772 ◽  
Author(s):  
Jheng-Wun Su ◽  
Xiang Tao ◽  
Heng Deng ◽  
Cheng Zhang ◽  
Shan Jiang ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Flexible Electronics ◽  
Three Dimensional ◽  
Advanced Materials ◽  
Soft Robotics ◽  
4D Printing ◽  
3D Structures

There is a significant need of advanced materials that can be fabricated into functional devices with defined three-dimensional (3D) structures for application in tissue engineering, flexible electronics, and soft robotics.

Three-Dimensional Functionalized Tetrapod-like ZnO Nanostructures for Plasmid DNA Delivery

Small ◽  
2006 ◽  
Vol 2 (5) ◽  
pp. 621-625 ◽  
Author(s):  
Leng Nie ◽  
Lizeng Gao ◽  
Ping Feng ◽  
Jingyuan Zhang ◽  
Xingqiu Fu ◽  
...  
Keyword(s):  
Plasmid Dna ◽  
Three Dimensional ◽  
Dna Delivery ◽  
Zno Nanostructures

scholarly journals Design of a Fully Integrated Inductive Coupling System: A Discrete Approach Towards Sensing Ventricular Pressure

Sensors ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 1525
Author(s):  
Natiely Hernández Sebastián ◽  
Noé Villa Villaseñor ◽  
Francisco-Javier Renero-Carrillo ◽  
Daniela Díaz Alonso ◽  
Wilfrido Calleja Arriaga
Keyword(s):  
Pressure Sensor ◽  
Flexible Electronics ◽  
Printed Circuit Board ◽  
Low Cost ◽  
Three Dimensional ◽  
Magnetic Coupling ◽  
Circuit Board ◽  
Ventricular Pressure ◽  
Capacitive Pressure Sensor ◽  
Implantable Medical Device

In this paper, an alternative strategy for the design of a bidirectional inductive power transfer (IPT) module, intended for the continuous monitoring of cardiac pressure, is presented. This new integrated implantable medical device (IMD) was designed including a precise ventricular pressure sensor, where the available implanting room is restricted to a 1.8 × 1.8 cm2 area. This work considers a robust magnetic coupling between an external reading coil and the implantable module: a three-dimensional inductor and a touch mode capacitive pressure sensor (TMCPS) set. In this approach, the coupling modules were modelled as RCL circuits tuned at a 13.56 MHz frequency. The analytical design was validated by means of Comsol Multiphysics, CoventorWare, and ANSYS HFSS software tools. A power transmission efficiency (PTE) of 94% was achieved through a 3.5 cm-thick biological tissue, based on high magnitudes for the inductance (L) and quality factor (Q) components. A specific absorption rate (SAR) of less than 1.6 W/Kg was attained, which suggests that this IPT system can be implemented in a safe way, according to IEEE C95.1 safety guidelines. The set of inductor and capacitor integrated arrays were designed over a very thin polyimide film, where the 3D coil was 18 mm in diameter and approximately 50% reduced in size, considering any conventional counterpart. Finally, this new approach for the IMD was under development using low-cost thin film manufacturing technologies for flexible electronics. Meanwhile, as an alternative test, this novel system was fabricated using a discrete printed circuit board (PCB) approach, where preliminary electromagnetic characterization demonstrates the viability of this bidirectional IPT design.

scholarly journals Easily Synthesized Polyaniline@Cellulose Nanowhiskers Better Tune Network Structures in Ag-Based Adhesives: Examining the Improvements in Conductivity, Stability, and Flexibility

Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1542 ◽  
Author(s):  
Ge Cao ◽  
Xiaolan Gao ◽  
Linlin Wang ◽  
Huahua Cui ◽  
Junyi Lu ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
Three Dimensional ◽  
Cellulose Nanowhiskers ◽  
Conductive Adhesives ◽  
Electrically Conductive ◽  
Printed Circuit ◽  
Good Solubility ◽  
Mechanical Compliance ◽  
Bending Radius ◽  
Future Potential

It is essential to develop a novel and versatile strategy for constructing electrically conductive adhesives (ECAs) that have superior conductivity and high mechanical properties. In this work, easily synthesized polyaniline@cellulose (PANI@CNs) nanowhiskers with a high aspect ratio and excellent solubility in 1,4-dioxane were prepared and added to conventional Ag-containing adhesives. A small amount of PANI@CNs can dramatically tune the structure of the ECAs’ conductive network and significantly improve the conductivity of the ECAs. Good solubility of PANI@CNs in solvents brings excellent dispersion in the polymer matrix. Thus, a three-dimensional (3D) conducting network formed with dispersed PANI@CNs and Ag flakes can enhance the conductivity of ECAs. The conductivity of the ECAs (with 1.5 wt% PANI@CNs and 55 wt% Ag flakes) showed three orders of magnitude higher than that of the ECAs filled with 55 wt% Ag flakes and 65 wt% Ag flakes. Meanwhile, the integration of PANI@CNs with Ag flakes in polymer matrices also significantly enhanced the mechanical compliance of the resulted ECAs. The resistivity remained unchanged after rolling the PANI@CNs-containing ECAs’ film into a 4 mm bending radius for over 1500 cycles. A bendable printed circuit was fabricated using the above PANI@CNs-containing ECAs, which demonstrated their future potential in the field of flexible electronics.

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