Taehyung Kim

ORCID: 0000-0002-7367-4941
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Research Areas
  • Quantum Dots Synthesis And Properties
  • Chalcogenide Semiconductor Thin Films
  • Semiconductor Quantum Structures and Devices
  • Luminescence Properties of Advanced Materials
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Anodic Oxide Films and Nanostructures
  • Photonic Crystals and Applications
  • GaN-based semiconductor devices and materials
  • Glass properties and applications
  • Perovskite Materials and Applications
  • Retinal Diseases and Treatments
  • Luminescence and Fluorescent Materials
  • Liquid Crystal Research Advancements
  • Nuclear materials and radiation effects
  • Retinal and Optic Conditions
  • Distributed and Parallel Computing Systems
  • Electronic and Structural Properties of Oxides
  • Advancements in Semiconductor Devices and Circuit Design
  • Low-power high-performance VLSI design
  • Nanocluster Synthesis and Applications
  • Cloud Computing and Resource Management
  • Organic Electronics and Photovoltaics
  • Advanced biosensing and bioanalysis techniques
  • Near-Field Optical Microscopy

Samsung (South Korea)
2010-2024

Cheongju University
2019

University of California, Riverside
2010-2013

Kyung Hee University
2012

Sogang University
2010

Pusan National University
2010

Seoul National University
2006

University of Massachusetts Amherst
2005

Chung Cheong University
2000

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTFrom Cylinders Helices upon ConfinementHongqi Xiang, Kyusoon Shin, Taehyung Kim, Sung In Moon, Thomas J. McCarthy, and P. RussellView Author Information Polymer Science Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003 Cite this: Macromolecules 2005, 38, 4, 1055–1056Publication Date (Web):January 19, 2005Publication History Received19 November 2004Revised3 January 2005Published...

10.1021/ma0476036 article EN Macromolecules 2005-01-19

Molekulare Nanodrähte aus einem Anthracen-9-(1,3-Butadien-)Derivat rollen sich auf, sobald sie Lichtpuls ausgesetzt werden. Das Aufrollen ist unabhängig von der Richtung Lichteinstrahlung und tritt bei Nanodrähten sowohl des E- als auch Z-Isomers auf. Die Formänderung wird durch eine E⇄Z-Photoisomerisierung angetrieben, die einen Nanodraht mit gemischten Isomeren erzeugt. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such...

10.1002/ange.201302323 article EN Angewandte Chemie 2013-05-16

We fabricated a homogeneous thin film by blending hole-transporting organic molecule having long alkyl chains, N,N′-bis(3-methylphenyl)-N,N′-bis(phenyl)-9,9-dioctylfluorene (DOFL-TPD), with InP/ZnSe/ZnS quantum dots (QDs) and used it as an emissive layer (EML) in light-emitting diode (LED). The blended QD EML-based device exhibited external efficiency of 18.6% maximum luminance 128 577 cd/m2. Additionally, its operational lifetime significantly increased comparison to that the control...

10.1021/acsenergylett.1c00351 article EN ACS Energy Letters 2021-03-30

Abstract The burgeoning demand for commercializing self‐luminescing quantum dot (QD) light‐emitting diodes (LEDs) has stimulated extensive research into environmentally friendly and efficient QD materials. Hydrofluoric acid (HF) additive improves photoluminescence (PL) properties of blue‐emitting ZnSeTe QDs, ultimately reaching a remarkable yield (QY) 97% with an ultranarrow peak width 14 nm after sufficient HF addition. improvement in optical the QDs is accompanied by morphology change...

10.1002/adma.202311719 article EN Advanced Materials 2024-01-12

The colloidal quantum dots (QDs) have inherent multiple dangling bonds (DBs) on the surface atoms due to intrinsic weak bonding nature and steric hindrance of organic ligands. Such DBs can be trap sites for charge carriers, leading reduction luminescence efficiency, but their detailed characteristics are still unclear. In this study, we disclose electronic optical features InP QDs via density functional calculations combined with experimental evidence. For core, both In-DB P-DB create...

10.1021/acsanm.8b01947 article EN ACS Applied Nano Materials 2018-12-06

InP quantum dots (QDs) are the material of choice for QD display applications and have been used as active layers in light-emitting diodes (QDLEDs) with high efficiency color purity. Optimizing purity QDs requires understanding mechanisms spectral broadening. While ensemble-level broadening can be minimized by synthetic tuning to yield monodisperse sizes, single line widths broadened exciton-phonon scattering fine-structure splitting. Here, using photon-correlation Fourier spectroscopy, we...

10.1021/acsnano.2c10237 article EN ACS Nano 2023-02-09

Importance Aflibercept biosimilars can expand available treatment options in retinal diseases and have the potential to improve patient access safe effective therapy. Objective To establish equivalence efficacy similarity safety, pharmacokinetics, immunogenicity of SB15 reference aflibercept (AFL) neovascular age-related macular degeneration (nAMD). Design, Setting, Participants This was a randomized double-masked parallel group phase 3 trial conducted at 56 centers 10 countries from June...

10.1001/jamaophthalmol.2023.2260 article EN cc-by-nc-nd JAMA Ophthalmology 2023-06-08

Additional Ce3+ doping improves the luminescence of Li2SrSiO4:Eu2+, a yellow phosphor for ultraviolet or blue light-emitting diodes. By examining photoluminescence Li2SrSiO4:Ce3+, and Li2SrSiO4:Ce3+,Eu2+, it was confirmed that energy transfer from to Eu2+ ions contributes little enhanced Li2SrSiO4:Ce3+,Eu2+. Alternatively, we suggested could stabilize Li vacancies, inhibit oxidization Eu3+, consequently increase emission intensity, based on characterizations with decay time synchrotron light...

10.1063/1.3308486 article EN Applied Physics Letters 2010-02-08

To obtain highly efficient, stable, and environmentally friendly blue-light-emitting materials for display applications, we prepared a specially tailored Cd-free, colloidal quantum-well (CQW) structure of ZnS/ZnTeSe/ZnS. We optimized the synthetic methods to construct very uniform ZnS core having diameter ∼2.9 nm within 10% size distribution. In addition, it was found that QD structures were either cube with (100) surface facets or tetrahedron (111) facets. As ZnTeSe mid-shell grew on...

10.1021/acs.chemmater.0c01275 article EN Chemistry of Materials 2020-05-20

10.1016/j.jlumin.2006.01.339 article EN Journal of Luminescence 2006-03-14

Ni–AlGaN/GaN Schottky barrier diodes (SBDs) with lateral geometry were fabricated on sapphire substrates. At 300 K, devices 500-μm-diameter contacts exhibited breakdown voltage (VB) of 765 V, forward current (IF) 0.065 A at 1.5 and specific on-resistance (Ron) 81.3 mΩ cm2, producing a figure-of-merit (VB2/Ron) ∼7.2 MW cm−2. Measured in multifinger patterns, the same parameters 420 3.2 A, 4.6 38.4 cm−2, respectively, K. With increase measurement temperature from to 450 SBDs dimensions...

10.1063/1.3525931 article EN Applied Physics Letters 2010-12-13

Semiconductor quantum dots (QDs) are spotlighted as a key type of emissive material for the next generation light-emitting diodes (LEDs). This work presents investigation electrochemical charging effect on absorption and emission InP/ZnSe/ZnS QDs with different mid-shell thicknesses. The excitonic peak is gradually bleached during charging, which caused by 1Se (or 1Sh ) state filling when electron hole) injected into InP core. Additional charges also lead to photoluminescence (PL) intensity...

10.1002/smll.202003542 article EN Small 2020-09-22

Importance SB11 and reference ranibizumab (RBZ) are monoclonal anti–vascular endothelial growth factor (VEGF)–A antibodies approved for the treatment of neovascular age-related macular degeneration (nAMD) other retinal diseases. The association immunogenicity outcomes in patients with nAMD is unclear but relevant regarding concerns about anti-VEGF biological products. Objective To examine to products (SB11 RBZ) efficacy, safety, pharmacokinetics. Design, Setting, Participants This was a post...

10.1001/jamaophthalmol.2022.5403 article EN cc-by-nc-nd JAMA Ophthalmology 2022-12-15

To provide longer-term data on efficacy, safety, immunogenicity and pharmacokinetics (PK) of ranibizumab biosimilar SB11 compared with the reference (RBZ) in patients neovascular age-related macular degeneration (nAMD).Setting: Multicentre. Design: Randomised, double-masked, parallel-group, phase III equivalence study. Patient population: ≥50 years old participants nAMD (n=705), one 'study eye'.1:1 randomisation to monthly intravitreal injection 0.5 mg or RBZ. Main outcome measures: Visual...

10.1136/bjophthalmol-2021-319637 article EN cc-by-nc British Journal of Ophthalmology 2021-10-16

The crystal structure of β-Ca3SiO4Cl2 was determined by the ab initio determination method based on synchrotron powder XRD data for first time, and luminescence properties a Eu2+-doped phosphor were characterized. found to be monoclinic (space group P21/c) with lattice parameters, = 5.91234(1) Å, b 10.20128(1) c 10.98866(1) β 90.3423(1)°. This can considered as an intergrowth built up from alternating stacks two layered sublattices, ∞2[Ca2SiO4] ∞2[CaCl2], along [100] direction. In this...

10.1021/jp5002379 article EN The Journal of Physical Chemistry C 2014-05-12

Abstract In cloud computing, there is a trade-off between SLAV (Service Level Agreement Violation) and system operating cost. Violation rates can be decreased when using more hosts, which increases costs. Therefore, to manage the resources of those hosts efficiently, finding an optimal balancing point cost critical. addition, cost-effective load approach based on proper migration VMs (Virtual Machines) in needed. For this purpose, some indicators are also necessary identify abnormal that...

10.1186/s13677-020-00221-7 article EN cc-by Journal of Cloud Computing Advances Systems and Applications 2021-01-11

Second-order photon correlation measurements [${g}^{(2)}(\ensuremath{\tau})$ functions] are widely used to classify single-photon emission purity in quantum emitters or measure the multiexciton yield of that can simultaneously host multiple excitations -- such as dots by evaluating value ${g}^{(2)}(\ensuremath{\tau}=0)$. Accumulating enough photons accurately calculate this is time consuming and could be accelerated fitting few-shot correlations. Here, we develop an uncertainty-aware, deep...

10.1103/physrevb.106.045425 article EN Physical review. B./Physical review. B 2022-07-29

Cloud computing manages system resources such as processing, storage, and networking by providing users with multiple virtual machines (VMs) needed. It is one of the rapidly growing fields that come huge computational power for scientific workloads. Currently, community ready to work over cloud it considered a resource-rich paradigm. The traditional way executing workloads on using machines. However, latest emerging concept containerization more gained popularity because its unique features....

10.3390/app11030993 article EN cc-by Applied Sciences 2021-01-22
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