Integrated Electronic Materials Lab.

Electronic polymer materials, Optoelectronics, Sensors, Materials for stretchable electrodes

2021 IEML Open Lab. - Video Clip 자세히보기

Research 11

Highly Conductive Ink Based on Self-Aligned Single-Walled Carbon Nanotubes through Inter-Fiber Sliding in Cellulose Fibril Networks

Carbon nanotubes (CNTs), owing to their superior electrical and mechanical properties, are a promising alternative to nonmetallic electrically conducting materials. In practice, cellulose as a low-cost sustainable matrix has been used to prepare the aqueous dispersion of cellulose-CNT (C-CNT) nanocomposites. However, the compatibility with conventional solution-processing and structural rearrang..

Research 2024.08.30

Thermally Induced Phase Separation of the PEDOT:PSS Layer for Highly Efficient Laminated Polymer Light-Emitting Diodes

Among various conductive polymers, the poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) film has been studied as a promising material for use as a transparent electrode and a hole-injecting layer in organic optoelectronic devices. Due to the increasing demand for the low-cost fabrication of organic light-emitting diodes (OLEDs), PEDOT:PSS has been employed as the top electro..

Research 2024.08.30

Highly Sensitive Biosensors Based on All-PEDOT: PSS Organic Electrochemical Transistors with Laser-Induced Micropatterning

Recent advances in numerous biological applications have increased the accuracy of monitoring the level of biologically significant analytes in the human body to manage personal nutrition and physiological conditions. However, despite promising reports about costly wearable devices with high sensing performance, there has been a growing demand for inexpensive sensors that can quickly detect biol..

Research 2024.08.30

Gradual Morphological Change in PEDOT: PSS Thin Films Immersed in an Aqueous Solution

The poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) film is a promising material for electrodes, biomolecular sensor channels, and probes for physiological signals because the electrical conduction of PEDOT:PSS is tuned simply through the electrochemical reaction with the target analyte. However, forming a specific morphology or nanostructure on PEDOT:PSS thin films immerse..

Research 2023.02.03

Resistive switching and conductance quantization in poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)-based resistive random access memory device with printable top electrodes

In this study, we present the fabrication of a poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS)-based resistive random access memory (RRAM) device using a fully vacuum-free and solution-processed fabrication method, realized using a printable top electrode. Three different printable electrodes, namely Ag epoxy, ethylene glycol(EG)-treated PEDOT:PSS, and dimethyl sulfoxide(DMSO..

Research 2022.09.21

Fully Vacuum-Free Fabrication of Bi-Directional Polymer Light-Emitting Diodes Based on a Hybrid Lamination Top Electrode

This study investigates a hybrid lamination electrode based on a silver nanowire and a conductive polymer for the top electrode of bi-directional polymer light-emitting diodes (PLEDs). Through a vacuum-free hot-press lamination step, the proposed hybrid electrode employed a complete and concrete electrical contact with the underlying emissive polymer layer. In addition, by inserting a hole injec..

Research 2022.09.21

Fully vacuum-free semitransparent polymer solar cells for power‐generating window with pure achromatic appealing

Fully vacuum-free manufacturing could be achieved from a silver nanowire and conductive polymer-based transparent lamination top electrode, thereby achieving complete and concrete electrical contact with the underlying polymer bulk-heterojunction layer through a simple hot-press lamination step. In addition, for the insertion of an appropriate hole-extracting interlayer between the lamination el..

Research 2022.02.16

Polymer-based non-volatile resistive random-access memory (RRAM) with multi-level switching

Resistive random-access memory (RRAM) has been widely considered for its prospective applicability owing to its non-volatile characteristics. In this study, a polymer-based vacuum-free RRAM device fabricated with the conductive polymer, poly(3,4-ethylene-dioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) was proposed. Pristine PEDOT:PSS coated on indium tin oxide (ITO) electrode was used as the ..

Research 2021.06.14