A5089928883- Glass properties and applications
- Phase-change materials and chalcogenides
- Material Dynamics and Properties
- Luminescence and Fluorescent Materials
- Polydiacetylene-based materials and applications
- TiO2 Photocatalysis and Solar Cells
- Metal-Organic Frameworks: Synthesis and Applications
- Conducting polymers and applications
- Crystal Structures and Properties
- Luminescence Properties of Advanced Materials
- Supramolecular Self-Assembly in Materials
- Ga2O3 and related materials
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Covalent Organic Framework Applications
Indian Association for the Cultivation of Science
2013-2023
Jadavpur University
2016
Designing high-performing proton-conducting materials with in-built −SO3H moieties in the crystalline organic framework is very challenging context of developing an efficient solid electrolyte for fuel cells. Herein, we report a simple chemical route synthesizing microporous sulfonic acid-functionalized porous polymers (MPOPS-1) via extended condensation polymerization between two monomers (i.e., cyanuric chloride and 2,5-diaminosulfonic acid) under refluxing conditions. The crystal...
Polythiophene- g -poly(methacrylic acid) conjugates with protonated perylene diimide appended dipeptide show both AIE and AIQ in fluorescence, enhancement of dc-conductivity, generate OMEIC property, exhibit tuneable photo-switching behaviour.
We have studied and observed a mixed glass former effect in yAg2O–(1–y)[xSeO2–(1–x)TeO2] glasses for different modifier contents. carried out electrical measurements on these the frequency range from 10 Hz to 2 MHz temperature of 193–393 K. The crossover obtained conductivity spectra also exhibits similar conductivity. scaling reveals composition- temperature-independent nature ion conduction mechanism. characteristic displacement silver ions has been framework linear response theory, it...
Electrical conductivity and dielectric properties of silver iodide doped ion mixed-former conducting glasses have been studied in this paper. The frequency dependence has analyzed following the random free-energy barrier model. charge carrier relaxation time activation energy for determined present glasses. applicability Barton-Nakajima-Namikawa relation tested using results obtained from scaling spectra performed to understand effect temperature as well composition on dynamics. data...
The ionic conductivity and the spectra of glass compositions xAgI-(1-x)[yAg2O-(1-y)(0.5SeO2-0.5TeO2)] have been studied at different temperatures activation energy for dc conduction has analyzed using Anderson-Stuart model, a correlation between doorway radius obtained. We random free-energy barrier taking into account contribution electrode polarization. It is observed that Barton-Nakajima-Namikawa relation relaxation time valid these glasses. time-temperature superposition principle...
Designing an efficient catalyst for a sustainable photoelectrochemical water oxidation reaction is very challenging in the context of renewable energy research. Here, we have introduced new semiconducting porous zinc-thiolate framework via successful stitching "N" donor linker with triazine-based tristhiolate secondary building unit overall architecture. The introduction both and ligand synergistically modifies architecture by making it rigid, crystalline, three-dimensional, thermally...
Organic soft material-based mixed-ion electronic conductors (MIECs) have nowadays emerged as an important class of material due to their immense use in many fields. In this study, we report a peptide-appended naphthalene diimide-based (NDIP) thermoresponsive, mechanosensitive, and photoresponsive hydrogel the phosphate buffer medium at physiological pH (7.46), which also shows MIECs properties assembled state. The UV–visible study has revealed J type aggregation NDIP molecule gel...
We have studied the dynamics of silver ions in AgI-doped Ag2O-SeO2-MoO3 mixed former glasses wide frequency and temperature ranges. observed that ionic conductivity exhibits a glass network effect for low AgI content. The scaling spectra shows mechanism charge carrier is independent composition. obtained mobile Ag+ ion concentration from Nernst-Einstein relation, which found to be temperature, but slightly dependent on also characteristic mean square displacement mapping time domain. It...
Abstract Zinc oxide is one of the most widely studied semiconductor metal oxides, which predominantly crystallizes as hexagonal wurtzite and often cubic zinc‐blende phases. Here we report transformation highly stable ZnO to a new triclinic phase NZO‐2 by using metformin template during post‐synthesis hydrothermal treatment. This crystalline material has been identified through refinement powder XRD data. possesses porous rod like particle morphology consisting self‐assembly 3–7 nm size...
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 A. Palui, Shaw, Ghosh; Dielectric relaxation in AgI doped silver selenomolybdate glasses. AIP Conf. Proc. 23 May 2016; 1731 (1): 070022. https://doi.org/10.1063/1.4947854 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Dropdown Menu...
We report the study of dielectric properties mixed network former glasses composition 0.3Ag2O-0.7(xSeO2-(1-x)TeO2); x=0, 0.1, 0.3, 0.4, 0.5 and 0.6 in a wide frequency 10 Hz - 2 MHz temperature range 223 K 403 K. The experimental data have been analyzed framework complex permittivity. permittivity using Cole-Cole function. inverse dependence relaxation time obtained from real part follows Arrhenius relation. activation energy shows glass effect with variation ratio. A non-zero value shape...