A5040292199- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Advanced Thermoelectric Materials and Devices
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Quantum Dots Synthesis And Properties
- Organic and Molecular Conductors Research
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Electrospun Nanofibers in Biomedical Applications
- Semiconductor materials and devices
- GaN-based semiconductor devices and materials
- Chalcogenide Semiconductor Thin Films
- Luminescence Properties of Advanced Materials
- Nutritional Studies and Diet
- Nanowire Synthesis and Applications
- Copper Interconnects and Reliability
- MXene and MAX Phase Materials
- Copper-based nanomaterials and applications
- Graphene research and applications
- Advancements in Battery Materials
- Thermal Radiation and Cooling Technologies
- Nanoporous metals and alloys
- Gas Sensing Nanomaterials and Sensors
- Polydiacetylene-based materials and applications
Anyang University
2024-2025
Hanyang University
2017-2025
Kyung Hee University
2017-2024
Seoul Institute
2017
Government of the Republic of Korea
2017
Yong In University
2017
Abstract The discovery of SnSe single crystals with record high thermoelectric efficiency along the b -axis has led to search for ways synthesize polycrystalline similar efficiencies. However, due weak texturing and difficulties in doping, such efficiencies have not been realized polycrystals or thin films. Here, we show that highly textured hole doped films power factors at crystal level can be prepared by solution process. Purification step synthetic process produced a SnSe-based...
GO content tuning gradually enhanced the HER catalytic performance of MoS<sub>2</sub>/rGO hybrids, decreasing Tafel slope from 82 to 48 mV per decade owing an increase catalytically active areas and electronic transition MoS<sub>2</sub>.
Abstract Self‐healable and stretchable energy‐harvesting materials can provide a new avenue for the realization of self‐powered wearable electronics, including electronic skins, whose main are required to be robust stable under external damage severe mechanical stresses. However, thermoelectric (TE) showing both self‐healing properties stretchability have not yet been demonstrated despite their great potential harvest thermal energy in human body. As most existing TE either mechanically...
Abstract Molecular doping is essential for improving the thermoelectric properties of conjugated polymers, but dopants low solubility either restrict formation high quality films or complicate fabrication steps. Although a highly soluble molecular dopant, tris(pentafluorophenyl)borane (BCF), has been sporadically studied, its potential not yet fully explored. Herein, particularly intriguing effects Brønsted acid with BCF‐water complexes poly(3‐hexylthiophene) (P3HT) are reported, which can...
Organic thermoelectric (TE) materials have great potential as sustainable energy sources for powering flexible and wearable electronic devices via harvesting of human body heat. Recent advances in soluble conjugated polymer/carbon nanotube (CNT) composites facilitated achievement high TE power factors. However, the effects polymers on debundling electrical percolation CNTs properties their are not yet fully understood. Herein, we introduce a novel type polymer/CNT composite composed...
Abstract Perovskite nanocrystals (PNCs) are attractive photoactive materials in various optoelectronic devices including light‐emitting diodes, solar cells, and photodetectors. However, the weakly bound surface ligands on PNCs reduce colloidal stability cause film formation patterning difficulties, severely restricting their practical applications. Herein, a rationally designed photocrosslinkable zwitterionic (PZ) ligand is introduced to obtain directly patternable CsPbBr 3 with enhanced...
One-dimensional ZnO nanorods (NRs) have been extensively studied as photoanodes because of their unique optical properties, high electron mobility, and suitable band positions for water oxidation. However, practical efficiency is often compromised by chemical instability during oxidation carrier recombination rates. To overcome this issue, precise morphological control ZnO@ZnWO4 core–shell structured photoanodes, featuring a core ZnWO4 shell was used. This accomplished depositing WO3 onto...
Organic–inorganic hybrid CH3NH3PbBr3 (MAPbBr3) perovskite quantum dots (PQDs) are considered as promising and cost-effective building blocks for various optoelectronic devices. However, during centrifugation the purification of these PQDs, commonly used polar protic aprotic non-solvents (e.g., methanol acetone) can destroy nanocrystal structure MAPbBr3 perovskites, which will significantly reduce production yields degrade optical properties PQDs. This study demonstrates use methyl acetate...
P-type chemical doping (p-doping) is a key technique to modulate the optical, electrical, and electronic properties of organic semiconductors. However, typical functional groups in p-dopants have insufficient electron-withdrawing strength, inevitable diffusion dopants host matrices degrades stabilities. Herein, we utilize extremely Lewis-paired CN as new class building blocks for designing unprecedentedly strong with excellent stability. Various Lewis acids are paired CN-functionalized...
Abstract The current design trends in the field of electronic devices involve efforts to make these smaller, thinner, lighter, and more flexible. development such systems is expected further accelerate, resulting production wearable Internet-of-Things devices. In this respect, microenergy storage with high capacity fast charge/discharge rates have become important power sources for particular, interdigitated microsupercapacitors (MSCs) exhibited remarkable potential as micropower owing their...
Abstract Despite excellent electrical and mechanical properties, practical application of poly(3,4‐ethylenedioxythiophene) polymerized with poly(4‐styrenesulfonate) (PEDOT:PSS) face the challenge ensuring air stability in electronic industry. Here, degradation mechanism PEDOT:PSS‐based films is clearly demonstrated through X‐ray/ultraviolet photoelectron spectroscopy (XPS/UPS) its depth‐profiling technique. As duration air‐exposure increases, alter molecular structures formation SO x bond...
The evolution of "smart life," which connects all internet-of-things (IoT) microdevices and microsensors under wireless communication grids, requires microscale energy storage devices with high power density long-term cyclability to integrate them sustainable generators. Instead Li-ion batteries a short lifetime, pseudocapacitors longer or infinite high-power have been considered as efficient for IoT. However, the design fabrication difficulties in patterning electrodes when loading active...
High-crystalline TIPS-PEN crystal stripes are directly printed with controllable inter-stripe spacing<italic>via</italic>programmed dip-coating for application in organic field-effect transistors.
The development of methods for the facile fabrication complex micro-supercapacitors (MSCs) has drawn much attention owing to increment in their use wearable and flexible microscale electronics. In particular, interdigitated MSCs with pseudocapacitive behavior have been attractive as energy storage small-scale devices, potential achieve high power density excellent cycling durability within a limited area. However, complicated multiple patterning processes are required assemble materials...
Perovskite Nanocrystals In article number 2304004, Hwan Jung, Yong Jin Jeong, Jaeyoung Jang, and co-workers develop a direct photopatterning method of perovskite nanocrystals using photocrosslinkable zwitterionic (PZ) ligand. By exchanging original surface ligands on with the PZ simple solution process, densely self-assembled high-resolution PNC patterns can be obtained. This strategy will broadly impact PNC-based optoelectronics energy applications.
Abstract P‐type chemical doping (p‐doping) is a key technique to modulate the optical, electrical, and electronic properties of organic semiconductors. However, typical functional groups in p‐dopants have insufficient electron‐withdrawing strength, inevitable diffusion dopants host matrices degrades stabilities. Herein, we utilize extremely Lewis‐paired CN as new class building blocks for designing unprecedentedly strong with excellent stability. Various Lewis acids are paired...
The Internet of Things (IoT) connects people, devices, and information resources, in various domains to improve efficiency. healthcare domain has been transformed by the integration IoT, leading development digital solutions such as health monitoring, emergency detection, remote operation. This led an increase data collected from a variety IoT sources. Consequently, advanced technologies are required analyze data, artificial intelligence employed extract meaningful insights data. Childhood...