A5061608864- Advanced Sensor and Energy Harvesting Materials
- Thin-Film Transistor Technologies
- Nanowire Synthesis and Applications
- Nanomaterials and Printing Technologies
- Food Supply Chain Traceability
- Energy Harvesting in Wireless Networks
- Organic Electronics and Photovoltaics
- Advanced Materials and Mechanics
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Chemical Sensor Technologies
- Dielectric materials and actuators
- Organic Light-Emitting Diodes Research
- Nanofabrication and Lithography Techniques
- RFID technology advancements
- Listeria monocytogenes in Food Safety
- Nanocomposite Films for Food Packaging
- Vibration and Dynamic Analysis
- Innovation and Socioeconomic Development
- Innovative Energy Harvesting Technologies
- Material Properties and Processing
- Advanced Memory and Neural Computing
- Semiconductor materials and devices
- Modular Robots and Swarm Intelligence
- Conducting polymers and applications
Sungkyunkwan University
2019-2024
Government of the Republic of Korea
2020
Sunchon National University
2017-2018
Abstract A limitless‐length flexible active‐matrix implies that virtually any surface can be rendered into an interactive medium when laminated with electrophoretic or organic light‐emitting diode sheets. However, performance, cost, and size limitations of current fabrication technologies semiconducting materials, typically utilized in thin film transistor (TFT) active matrices (TFT‐AMs), have hindered progress, thus preventing the realization fully printed TFT‐AMs on a plastic roll. new...
Organic semiconductor-based thin-film transistors' (TFTs) charge-carrier mobility has been enhanced up to 25 cm2/V s through the improvement of fabrication methods and greater understanding microstructure charge-transport mechanism. To expand practical feasibility organic TFTs, their electrical properties should be easily accessed from fully printed devices a scalable printing method, such as roll-to-roll (R2R) gravure. In this study, four commercially available semiconductors were...
The instability of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) under a humid condition is the major limitation in practical development flexible thermistor. Here, we introduced functionalized graphene oxide-polyvinylidene fluoride (FGO-PVDF) composite as an encapsulation layer to prove reliability PEDOT:PSS thermistors high-humidity conditions. FGO-PVDF-encapsulated thermistor exhibited good linearity, resolution 1272.57 Ω per °C, temperature coefficient resistance...
Abstract Printed electronics are challenged for showing the working concept of roll‐to‐roll (R2R) printed 13.56 MHz passive radio frequency identification (RFID) tag application in wireless (ID) and authentication to prevent counterfeits with cost a penny. However, penny RFID is not successful yet because major limit integrating number logic gates by high throughput R2R printing method. Herein, new way developed an electrophoretic quick response (QR) code as write once read many type memory...
The current system of assessing food quality via “use-by” dates needs to be replaced by a real-time assessment prevent blind disposal consumable products. Time-temperature history (TTH) based wireless label, which can wirelessly provide safety information the consumer smartphone, is viable alternative dates. However, cost TTH-food label has been major bottleneck in their universal application, especially regarding low-cost, large-quantity In addition, such labels should robust enough combat...
Abstract Roll‐to‐roll (R2R) printed electronics have been considered as the holy grail for low‐cost manufacturing of expendable and compliant electronic devices. However, a lapse exists in unlocking full potential R2R that there has yet to be foundry able integrate complementary metal‐oxide‐semiconductor (CMOS) logic gates into such Herein, printing based on design rule physical dimension which rheology inks, speed, overlay registration accuracy device are one another is proposed. As proof...
Roll-to-roll gravure (R2Rg) has become highly affiliated with printed electronics in the past few years due to its high yield of thin-film transistor (TFT) active matrix devices, and low cost. For printing TFTs multilayer structures, achieving a high-precision overlay registration accuracy (OPRA) is key challenge attain degree TFT integration through R2Rg. To address this efficiently, digital twin paradigm was first introduced R2Rg system an aim optimize OPRA by developing predictive model...
Despite the roll-to-roll (R2R) gravure printing method emerging as an alternative sustainable technology for fabricating logic circuits based on p- and n-types of single-walled carbon nanotube thin film transistors (p,n-SWCNT-TFTs), wide variation large threshold voltage (Vth > ~8) in R2R printed p,n-SWCNT-TFTs prevents integration complementary circuit. Here, Vth was narrowed down by developing a using first roll with minimized superposition error (< ±40 µm) engraved registration marks...
Abstract Formulating a high‐performing semiconducting ink is crucial toward printing diode for constructing direct current (DC) power harvesting device, consisting of an antenna, diode, and capacitor, that can rectify the coupled weak near field communication (NFC) (13.56 MHz) signal (<1.5 Vpp) generated from smartphones. To achieve such performance, indium gallium zinc oxide (IGZO)‐based formulated by developing electroactive binder, poly(4‐styrene sulfonic acid). By reducing turn‐on...
Abstract Roll‐to‐roll (R2R) printed electronic devices have great advantages for developing large scale flexible and disposable when compared to current Si‐based technology. For practical realization of these advantages, however, R2R need surmount device functionality limitations, most urgently high‐power dissipation poor stability. To resolve both imperative challenges at once, herein, an all complementary metal‐oxide‐semiconductor (CMOS) 1‐bit code generator with spin‐coated multilayer...
Charge carrier polarity tuning in printed thin film transistors (TFTs) is a crucial step order to obtain complementary devices.
In article number 1900935, Gyoujin Cho and co-workers present a novel printed electronics methodology, developed with an electrophoretic QR code that functions as write-once-read-many (WORM) type of memory circuitry. When integrated to R2R wireless 1-bit generator 6 CMOS logic gates, 2953 bytes authentic information can be provided via utilization NFC smartphone camera.
A basic R2R electronics printing foundry concept comprising nanomaterial based electronic inks, speed, overlay registration accuracy, and device design is described by Gyoujin Cho co-workers in article number 2000770. They demonstrate their system 44 single walled carbon nanotube (SWCNT)-based p-type n-type TFTs to integrate a ring oscillator, six NAND gates, OR gate for 4-bit code generation through gravure printer.