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New hetero-dilanthanide complexes containing Ln1(fod)3 and Ln2(fod)3 fragments (Ln=Pr–Nd; Nd–Sm; Eu–Tb and Ho–Er) linked by bis-diimine bridging ligand

New hetero-dilanthanide ?-diketonate complexes of the type [Ln1Ln2(fod)6(?-bpm)] {fod is the anion of 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedione; bpm=2,2?

ISSN：1387-7003

Judd–Ofelt analysis and near infrared emission properties of the Er3+ ions in tellurite glasses containing WO3 and CdO

The influence of erbium (Er3+) ion concentration on the infrared emission at 1.5?m in TeO2?WO3 and TeO2?CdO?WO3 glasses was studied. The samples were prepared by conventional melt quenching method.

ISSN：0030-4018

Synthesis, visible light absorption and luminescence of bipyrimidine bridged dinuclear lanthanide complexes of 2,4-pantanedione

Each lanthanide ion is eight-coordinate, in these dinuclear complexes, and is bound to six-O atoms of acac and two N-atoms of bridging bipyrimidine. The purity and homodinuclear nature of the complexes have been established by elemental analysis, NMR, and 4f?4f absorption spectroscopy.

ISSN：1387-7003

Correlation between optical, structural, and sensor properties of nanostructures of nickel oxide on aluminum oxide substrates

We have established a correlation between diffuse reflection of nickel oxide-based composites in the red region of the spectrum and the nanostructural properties of the roughness profile of the composite.

ISSN：0021-9037

Exciton relaxation in PbS quantum dots

Exciton relaxation in PbS quantum dots (QDs) in glass and tetrachloroethylene have been investigated and the radiative and non?radiative relaxation rates of the lowest 1S?1S state have been measured. An estimate of the carrier intra?

ISSN：1862-6254

Framework influence of erbium doped oxyfluoride glasses on their optical properties

Glasses of different matrix (phosphate, borate, silicate and lead-silicate) were studied for their optical properties. The effect of Er dopant on transmittance and luminescence properties was presented. The significant ?red shift? and ?blue shift?

ISSN：0925-3467

Preparation and luminescent characteristic of Li3NbO4 nanophosphor

Synthesis and luminescence properties of Li3NbO4 oxides by the sol?gel process were investigated. The products were characterized by the X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL) spectroscopy and absorption spectra.

ISSN：0022-2313

Performance of scintillation materials at cryogenic temperatures

n increasing number of applications of scintillators at low temperatures, particularly in cryogenic experiments searching for rare events, has motivated the investigation of scintillation properties of materials over a wide temperature range.

ISSN：0370-1972

Material Properties and Structural Characterization of M3Si6O12N2:Eu2+ (M=Ba, Sr)-A Comprehensive Study on a Promising Green Phosphor for pc-LEDs

The efficient green phosphor Ba3Si6O12N2:Eu2+ and its solid-solution series Ba3-xSrxSi6O12N2 (with x?0.4 and 1) were synthesized in a radio-frequency furnace under nitrogen atmosphere at temperatures up to 1425 ?C. The crystal structure (Ba3Si6O12N2, space group P$\bar 3$ (no. 147), a=7.

ISSN：0947-6539

Effects of neutron irradiation and subsequent annealing on the optical characteristics of sapphire

In this paper, the effect of neutron irradiation on sapphire single crystal with fast neutron of 1.0?1018 and 1.0?1019 neutrons/cm2 has been investigated along with the effect of annealing temperature.

ISSN：0921-4526