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The Kinetics of Photoelectrical Processes Near Interface of C60 and Liquid Crystals
O.P. Boiko, Ya.I. Vertsimakha
Institute of Physics, Kyiv, Ukraine
Structure, Synthesis and Magnetic Susceptability of Ammonium Hexaiodorhenate(IV)
A. Kochel
Faculty of Chemistry, University of Wrocław, Poland
Effective Nuclear Charge of Ion
A. Stokłosa, J. Zajęcki, S.S. Kurek
Cracow University of Technology, Institute of Chemical Engineering and Physical Chemistry, Poland
Analysis of Ionisation Energy of Ions, Ionic Radii in The Crystal Lattice and The Energy of Electrons in Ionic Cores of Metal Atoms
A. Stokłosa, J. Zajęcki, S.S. Kurek
Cracow University of Technology, Institute of Chemical Engineering and Physical Chemistry, Poland
Luminescence Properties of Nanophosphors: Metal Ion-doped Sol-gel Silica Glasses
M. Morita1, D. Rau1, T. Sakurai1, M. Baba2, M. Iwamura1
1 Department of Applied Chemistry, Seikei University, Japan
2 ISSP, The University of Tokyo, Japan
Abstract
Photoluminescence of xerogel and sol-gel SiO2 glasses doped with metal ions, metal complexes and semiconductor nanocrystals are investigated at 300 K and 10 K to clarify the optical properties and the electronic structures of nanophosphors. Sol-gel glasses doped with 3d, 4d and 5d transition metal ions exhibit a bright luminescence with various colours due to the3LMCT transition associated with closed -shell molecular complex centres. Luminescence from rare earth(III) complexes doped in the same matrix serve as a sensitive probe to determine axial and chiral complex structures. Luminescence properties are investigated of doped semiconductors ZnS: Cu, Al dispersed as nanocrystalline green phosphors in xero-gel with various lifetime components. The sol-gel silica-based phosphors are characterized by unusual valence states of the transition metal ions, stable centres in organic-inorganic hybrid hosts and the 500 ps lifetimes of D-A pairs due to spd hybridization effects in semiconductor nanocrystals.
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Download article (PDF)Pamoate Intercalated Zn-Al Layered Double Hydroxide for the Formation of Layered Organic-Inorganic Intercalate
M.Z. Hussein, Z.B. Jubri, Z. Zainal, A.H. Yahya
Multifunctional Nanomaterials for Industrial Application (MULIA) Research Group, Department of Chemistry, Universiti Putra Malaysia, Selangor, Malaysia
