A5049775263- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Electrocatalysts for Energy Conversion
- Thin-Film Transistor Technologies
- Advanced battery technologies research
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- Electrochemical Analysis and Applications
- Luminescence and Fluorescent Materials
- Advanced Memory and Neural Computing
- Advanced biosensing and bioanalysis techniques
- Quantum Dots Synthesis And Properties
- Electrochemical sensors and biosensors
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Supercapacitor Materials and Fabrication
- Graphene research and applications
- Perovskite Materials and Applications
- Nanomaterials and Printing Technologies
- Ferroelectric and Negative Capacitance Devices
- Near-Field Optical Microscopy
- Photochromic and Fluorescence Chemistry
- Tuberculosis Research and Epidemiology
- Semiconductor materials and interfaces
SRM Institute of Science and Technology
2021-2025
Dongguk University
2024-2025
Korea University
2017-2024
Sejong University
2018-2024
Kongju National University
2020
Korea Institute of Materials Science
2020
Korea Basic Science Institute
2020
Gongju National University of Education
2020
Convergence
2019
Sejong Institute
2019
Hydrogen production using an electrochemical cell might be alternative to conventional fuel systems (i.e., fossil fuels). The NiFe-layered hydroxide (NiFeOxHy) is one of the most popular electrocatalysts for water-splitting applications. However, its activity limited in hydrogen evolution reaction (HER) because minimal active sites and modest charge transfer rates. To overcome limitations NiFeOxHy, silver sulfide (Ag2S) graphitic carbon nitride (g-C3N4) were added as heterostructure...
Recombination zone (RZ) confinement and charge balance are the most important factors for realizing enhanced efficiency in phosphorescent organic light emitting devices (Ph-OLEDs). Here, we demonstrated RZ movement improved Ph-OLED by varying electron transport layer 2,2',2''-(1,3,5-Benzinetriyl)-tris(1-phenyl-1-H-benzimidazole) (TPBi) thickness. The thickness increment of TPBi not only control on to emission but also shifting towards cathode. with different thick is extracted from exciplex...
Abstract This study investigated white organic light‐emitting diodes (OLEDs) with a single emissive layer and comprising hole transport material 1,1‐Bis[(di‐4‐tolylamino)phenyl]cyclohexane (TAPC) two electron materials 1,3,5‐Tris(1‐phenyl‐1H‐benzimidazol‐2‐yl)benzene (TPBi) 1,3,5‐tris(3‐pyridyl‐3‐phenyl)benzene (TmPyPB). The devices exhibited unique emission characteristics, from sky blue orange exciplex emissions at low voltages to yellow electromer higher voltages. combination of these...
We report the confinement of recombination zone (RZ) in green phosphorescent organic light-emitting diodes (Ph-OLEDs) for enhanced efficiency by varying emission layer (EML) thickness and through quantum well (QW) insertion. At low EML, is reduced owing to diffusion RZ toward EML/hole transport interface, which was revealed presence exciton blocking [TCTA: tris(4-carbazoyl-9-ylphenyl)amine] excitation accompanied a blue-shift electroluminescence (EL). Further increase EML caused move...
A bifunctional electrocatalyst with a low overpotential is prerequisite for realizing efficient overall water splitting. In this scenario, the search low-cost and non-precious electrocatalysts in electrolysis research leads to employment of spinel oxides chalcogenides. Herein, heterostructure consisting tin sulfide (SnS) nanosheets engrafted onto nickel cobalt oxide (NiCo2O4) nanoneedles suspended on foam was prepared using conventional hydrothermal method. The interface SnS/NiCo2O4 found...
<h2>Summary</h2> Investigating exciton dynamics and device physics in phosphorescent organic light-emitting diodes (Ph-OLEDs) is important for developing highly efficient devices with optimal color purity. Herein, we conduct an in-depth exploration of the recombination zone various radiative transitions within blue Ph-OLEDs using operando electrically pumped spectroscopy. It serves as a versatile tool enabling simultaneous analysis time-resolved electroluminescence photoluminescence. Our...
AuNPs at various surface coverage.
Bactericidal Effect of Silver Nanoparticles Against Mycobacterium tuberculosis V. Lakshmi Praba1, M. Kathirvel1, K. Vallayyachari1, Surendar1, Muthuraj1 ∗, P. Justin Jesuraj2, S. Govindarajan3, and Raman4 1State TB Training Demonstration Centre, Government Hospital for Chest Diseases, Gorimedu, Pondicherry 605006, Pondicherry, India 2Centre Nanoscience Nanotechnology, Department Physics, Bharathidasan University, Trichy 620024, Tamilnadu, 3Government Clinic, Ambour Salai, 605001,...
We report the electron transport properties of epitaxial graphene (EG) grown on 4H-SiC (0001) by low energy electron-beam irradiation. As-grown EG (AEG) SiC interface exhibits rectifying current-voltage characteristics with a Schottky barrier (SB) 0.55 ± 0.05 eV and high reverse current leakage. The SB AEG/SiC junction is extremely impeded Fermi level pinning (FLP) above Dirac point due to charged states at interface. Nevertheless, gentle hydrogen intercalation 900 °C enables alleviation...
Hydrogenated amorphous Si (a-Si:H) thin-film solar cells (TFSCs) generally contain p/n-type layers, which are fabricated using toxic gases. The substitution of these layers with non-toxic materials while improving the device performance is a major challenge in field TFSCs. Herein, we report fabrication a-Si:H TFSCs n-type layer replaced self-assembled monolayer (3-aminopropyl) triethoxysilane (APTES). X-ray photoelectron spectroscopy results showed that amine groups from APTES attached...