Partha Sarathi Ghosh

  • Citations Per Year
Learn More
Undoped and europium doped CaMoO4 and SrMoO4 scheelites are synthesized using a complex polymerization method. The phase purity of the sample is confirmed using powder X-ray diffraction (PXRD). X-ray photoelectron spectroscopy (XPS) was carried out to confirm the oxidation states of various constituents and dopant elements and also the presence of oxygen(More)
A new flavanone glucoside, (2S)-dihydrobaicalein 7-O-(6″-benzoylglucopyranoside) (1), along with the known compounds scutellarein 4′-methyl ether (2), pectolinarigenin (3), and β-sitosterol-3-O-β-Dglucopyranoside (4), were isolated from the MeOH extract of Oroxylum indicum stem bark. The structure of the new compound was established on the basis of detailed(More)
Pure and Eu(3+) doped β-Ag2MoO4 were synthesized using a co-precipitation method at room temperature. The as prepared compounds were characterized systematically using X-ray diffraction (XRD), photoluminescence (PL) spectroscopy, cyclic voltammetry (CV) and positron annihilation lifetime spectroscopy (PALS). It is observed that pure β-Ag2MoO4 gives blue(More)
MgO particles of few micron size are synthesized through a sol-gel method at different annealing temperatures such as 600 °C (MgO-600), 800 °C (MgO-800) and 1000 °C (MgO-1000). EDX and ICP-AES studies confirmed a near total purity of the sample with respect to paramagnetic metal ion impurities. Magnetic measurements showed a low temperature weak(More)
SrZrO3 perovskite (SZP) was synthesized using gel-combustion route and characterized systematically using X-ray diffraction and time-resolved photoluminescence techniques. A detailed analysis of the optical properties of Tb(3+) ions in SrZrO3 was performed to correlate them with the local environment of the lanthanide ions in this perovskite.(More)
Considering the fact that pyrophosphate-based hosts are in high demand for making highly efficient luminescence materials, we doped two visible lanthanide ions, viz. Sm3+ and Eu3+, in Zn2P2O7. Interestingly, it was oberved that pure Zn2P2O7 displayed blue-green dual emission on irradiation with ultraviolet light. Emission and lifetime spectroscopy shows the(More)
This study reports the density functional theory (DFT) and classical molecular dynamics (MD) study of the lattice dynamical, mechanical and anionic transport behaviours of ThO2 in the superionic state. DFT calculations of phonon frequencies were performed at different levels of approximation as a function of isotropic dilation (ε) in the lattice parameter.(More)
Pothos cathcarti Schott. syn. P. scandens D. Don (local name: hathidenkiya) (Araceae), a climber, is widely distributed in tropical Himalayas from Kumaon to Burma, Bhutan, and northeastern states of India [1]. Its leaves fried with vegetable ghee are eaten for treating various pains in the body [2]. Phytochemical work on this plant has not been reported.(More)
  • 1