A5062788437- Luminescence Properties of Advanced Materials
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Organic Light-Emitting Diodes Research
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Radiation Detection and Scintillator Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Radical Photochemical Reactions
- Luminescence and Fluorescent Materials
- Crystallography and molecular interactions
- Electrochemical Analysis and Applications
- TiO2 Photocatalysis and Solar Cells
- Advanced Chemical Sensor Technologies
- Photorefractive and Nonlinear Optics
- Gas Sensing Nanomaterials and Sensors
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Quantum Dots Synthesis And Properties
Indian Institute of Technology Roorkee
2017-2024
Korea University
2021
National Power Training Institute
2016
Abstract The International Telecommunication Union announced a new color gamut standard of broadcast service television (BT 2020) for ultra-high-definition TV in 2012. To satisfy the wide-color BT 2020, monochromatic red (R), green (G), and blue (B) emissions require small full width at half-maximum, which is an important property improving purity. Although organic light-emitting diode (OLED) displays are currently one main types display technologies, their broad emission via strong vibronic...
Carbazoles decorated with both donor and acceptor fragments offer a classical way to optimize bipolar functional properties. In this work, series of carbazoles featuring triphenylamine donors cyano acceptors are synthesized their structure-property relationship is studied. The effects connectivity the chromophore number density on photophysical electroluminescence properties investigated. position 3,6-dicyanocarbazole nucleus significantly affected dye possessing C2 C7 displayed red shift in...
New benzothiadiazole-based materials containing methyl substitution are prepared and characterized as promising green/yellowish green emitters for electroluminescent applications. The dyes exhibited shorter wavelength absorption emission when compared to nonmethylated dyes. A dye group on the donor side blue shift in analogous away from donor. steric effect exerted by is responsible nonplanar arrangement of acceptor, which inhibited intramolecular charge transfer. All displayed...
Organic photocatalysts play a pivotal role in advancing green and sustainable chemistry by enabling efficient selective photochemical transformations reducing the need for traditional hazardous reagents energy-intensive processes. This work uses donor-acceptor natures, steric effects, conjugation lengths of six benzothiadiazole (BTD) based organic dyes (PC1-PC6) to control their charge transfer (CT) locally excited (LE) states. Thus, effective photosensitization photoredox characteristics...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation N. D. Meshram, P. J. Yadav, A. Pathak, C. Joshi, S. V. Moharil; Near infrared emission of TbAG:Ce3+,Yb3+ phosphor for solar cell applications. AIP Conf. Proc. 6 May 2016; 1728 (1): 020201. https://doi.org/10.1063/1.4946252 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers...
Blue-emitting phosphor LaMgAl11O19:Eu2+ has been synthesized successfully at 500 °C by one step combustion synthesis method. The as-synthesized materials were characterized powder x-ray diffraction (XRD) and photoluminescence (PL) techniques. Upon 365 nm excitation, emission spectra of the phosphors show a blue band 450 nm. excitation corresponding to 4f7-4f65d transition Eu2+ cover spectral range 280–430 concentration quenching in LaMgAl11O19 host was determined be 3 mol%. CIE chromaticity...
Ce3+and Eu2+ co-doped LaMgAl11O19, hexaaluminate phosphor has been successfully synthesized by one step combustion synthesis method using mixture of two fuels. Photoluminescence excitation and emission spectra are investigated in detail. Ce3+ Eu2+activated phosphors show bands at 350 nm 445 respectively ultraviolet blue region. Energy transfer behavior is observed from to Eu2+, which yields intense color nm. Concentration Quenching due dipole-dipole interaction observed. Maximum intensity...