A5101982300- Nanowire Synthesis and Applications
- ZnO doping and properties
- Thin-Film Transistor Technologies
- Semiconductor materials and interfaces
- Nanomaterials and Printing Technologies
- Chalcogenide Semiconductor Thin Films
- Silicon and Solar Cell Technologies
- 2D Materials and Applications
- Quantum Dots Synthesis And Properties
- CRISPR and Genetic Engineering
- Pluripotent Stem Cells Research
- Copper-based nanomaterials and applications
- Copper Interconnects and Reliability
- Gas Sensing Nanomaterials and Sensors
- Monoclonal and Polyclonal Antibodies Research
- MXene and MAX Phase Materials
- Bacteriophages and microbial interactions
- Electronic Packaging and Soldering Technologies
- Semiconductor materials and devices
- Advanced Sensor and Energy Harvesting Materials
- TiO2 Photocatalysis and Solar Cells
- Electronic and Structural Properties of Oxides
- Graphene research and applications
- Biochemical and Structural Characterization
- GaN-based semiconductor devices and materials
Catholic Kwandong University
2023-2024
Korea Advanced Institute of Science and Technology
1990-2023
Incheon National University
2015-2018
Chungbuk National University
2004
Asan Medical Center
2004
University of Ulsan
2004
Ulsan College
2004
This study achieved wafer-scale production of high quality tin monosulfide (SnS) layers. Vertical standing multilayers SnS enabled self-biased, speed, and stable photodetection.
We report a self-biased and transparent Cu4O3/TiO2 heterojunction for ultraviolet photodetection. The dynamic photoresponse improved 8.5 × 104% by adding silver nanowires (AgNWs) Schottky contact maintaining 39% transparency. current density–voltage characteristics revealed strong interfacial electric field, responsible zero-bias operation. In addition, the measurement endorsed effective holes collection embedded-AgNWs network, leading to fast rise fall time of 0.439 0.423 ms, respectively....
A High-performing transparent and flexible photodetector was achieved by reactive sputtering method. Vanadium pentoxide (V2O5) thin films were deposited on polyethylene terephthalate (PET) substrates at room temperature. The photodetectors with the configurations V2O5/ZnO/ITO/PET showed high-performing photoresponse a quick response time (4.9 ms) high detectivity of 1.45 × 1012 Jones, under light intensity 1 mW/m2. We demonstrated V2O5 film-based broadband which may provide promising...
Ag and Cu wires require forming gas environment during wire bonding contrary to Au due surface oxidation at high temperature. is the only noble metal not requiring passivation against oxidation, being most expensive metal. H2 in gases hazardous expensive. For replacing gas, we propose a solution using application of ceramic (Al2O3) coating nanometer scales on wires. We used ALD (Atomic Layer Deposition) methods apply Al2O3 with diameters ranging from 0.7 1.0 mils. present bondability...
Thermally stable silver nanowires (AgNWs)-embedding metal oxide was applied for Schottky junction solar cells without an intentional doping process in Si. A large scale (100 mm2) cell showed a power conversion efficiency of 6.1% under standard illumination, and 8.3% diffused illumination conditions which is the highest AgNWs-involved Si cells. Indium–tin–oxide (ITO)-capped AgNWs excellent thermal stability with no deformation at 500 °C. The top ITO layer grew cylindrical shape along AgNWs,...
Silver nanowires (AgNWs)-templated transparent metal oxide layer was applied for Si Schottky junction device, which remarked the record fastest photoresponse of 3.4 μs. Self-operating AgNWs-templated photodetector showed broad wavelength photodetection with high responsivity (42.4 A W−1) and detectivity (2.75 × 1015 Jones). indium-tin-oxide (ITO) band-to-band excitation due to internal photoemission, resulting in significant carrier collection performances. Functional formed by from ITO...
In this work, we demonstrate the effectiveness of Ag nanowires (AgNWs) to design a high-speed broadband photodetector. A simple AgNW solution was spin-coated on Si substrate form Schottky junction. The junction properties were investigated using current–voltage characteristics and Mott–Schottky analysis. present device had remarkably fast response speed, e.g., rising time τr = 784 ns fall τf 92 μs, with good reproducibility over wide range switching frequencies (50 Hz–50 kHz). Such high...
In the quest of exploring ecofriendly energy solutions, transparent photovoltaics (TPVs) have emerged as a promising innovation. TPVs harness sunlight to generate electricity while maintaining transparency, which makes them highly suitable for modern architectures. These represent solution that bridges gap between growing demand renewable and societal expectations. This comprehensive review aims emphasize significance potential in pursuit creating greener more sustainable future. The is...
An optically transparent and electrically conductive p-NiO layer was deposited on a conventional n-Si/p-Si solar cell, which improved the device performance. The transmittance reflectance properties of were found to be much better than SiNx in visible light region. Impedance spectroscopic study under varying bias illumination conditions carried out understand underlying mechanisms governing AC signal analysis revealed that acted as front surface field region for majority charge carriers. In...
No AccessJournal of UrologyINVESTIGATIVE UROLOGY1 May 2004Estrogen Induction Smooth Muscle Differentiation Human Prostatic Stromal Cells is Mediated by Transforming Growth Factor-β JUN HYUK HONG, CHERYN SONG, YOUNJOO SHIN, HONGSIK KIM, SEUNG PHIL CHO, WUN-JAE and HANJONG AHN HONGJUN HONG More articles this author , SONGCHERYN SONG SHINYOUNJOO SHIN KIMHONGSIK KIM CHOSEUNG CHO KIMWUN-JAE AHNHANJONG View All Author Informationhttps://doi.org/10.1097/01.ju.0000123064.78663.2cAboutFull TextPDF...
The assembly of proteins in a programmable manner provides insight into the creation novel functional nanomaterials for practical applications. Despite many advances, however, rational protein with an easy scalability terms size and valency remains challenge. Here, simple bottom-up approach to supramolecular tunable is presented. dendrimer-like assembly, simply called "protein dendrimer," constructed through stepwise alternate addition building block protein. Starting from zeroth-generation...
In this data article, vertically grown SnS layers were investigated. The growth processes of vertical discussed in our article [1]. This provides the chemical analysis using XPS measurements for sample on a Si wafer. Deposition time varying morphology changes observed by FESEM. cross-sectional images achieved to monitor layer thickness. Refractive index film was calculated reflectance data. A self-operating photoelectric realized with structuring n-type Transient photoresponses tuning...