01490nas a2200205   4500008004100000022001400041245010100055210006900156260007300225300001200298490000800310520073000318100002101048700001801069700001501087700002301102700001701125700002101142856012101163       2009                        eng d  a0009-261400aOptical investigations of interaction between zinc tetra phenyl porphyrin and CdSe nanoparticles0 aOptical investigations of interaction between zinc tetra phenyl   aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcDEC  a227-2320 v4833 a<p>Interactions between nanoparticles of zinc tetra phenyl porphyrin (ZnTPP) with CdSe nanoparticles in dimethyl sulphoxide solvent have been investigated. A ZnTPP-CdSe complex was formed which showed substantial changes in the UV-Vis absorption spectra in the presence of CdSe. Fluorescence measurements showed an interesting behavior at low as well as high concentrations of CdSe. When low concentrations of CdSe nanoparticles were added to the ZnTPP nanoparticles solution, besides two fluorescence bands due to ZnTPP nanoparticles, an intense new band appeared. On the other hand at high concentrations of CdSe one of the fluorescence band of ZnTPP at similar to 604 nm increased. (C) 2009 Published by Elsevier B. V.</p>1 aLihitkar, N., B.1 aSingh, S., B.1 aSingh, Jai1 aSrivastava, O., N.1 aNaik, R., H.1 aKulkarni, S., K.  uhttps://library.ncl.res.in/content/optical-investigations-interaction-between-zinc-tetra-phenyl-porphyrin-and-cdse-001662nas a2200277   4500008004100000022001400041245008000055210006900135260006900204300001200273490000800285520070500293653001100998653005301009653001501062653003501077653002301112100002101135700001901156700002201175700001501197700002301212700001701235700002101252856011101273       2012                        eng d  a0254-058400aConfinement of zinc oxide nanoparticles in ordered mesoporous silica MCM-410 aConfinement of zinc oxide nanoparticles in ordered mesoporous si  aPO BOX 564, 1001 LAUSANNE, SWITZERLANDbELSEVIER SCIENCE SAcAPR  a850-8560 v1333 a<p>Mesoporous silica (MS) and zinc loaded MS composites have been synthesized and characterized using high resolution transmission electron microscopy, X-ray diffraction, UV-visible spectroscopy, photoluminescence spectroscopy, N-2 adsorption-desorption isotherms, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Thermal treatment of the zinc loaded MS composite lead to the formation of ZnO-MS composite. The well ordered uniform pore structure of MS (pore size similar to 3.4 nm) is found to remain stable even after 30% Zn loading albeit decrease in the pore size 1.2 nm indicates the formation of ZnO inside the pores. (C) 2012 Elsevier B.V. All rights reserved.</p>10aDefect10aEnergy spectroscopy for chemical analysis (ESCA)10aMesoporous10aPhotoluminescence spectroscopy10aSurface properties1 aLihitkar, P., B.1 aViolet, Samuel1 aShirolkar, Mandar1 aSingh, Jai1 aSrivastava, O., N.1 aNaik, R., H.1 aKulkarni, S., K.  uhttps://library.ncl.res.in/content/confinement-zinc-oxide-nanoparticles-ordered-mesoporous-silica-mcm-41-0