Journal ArticleDOI
Structural and luminescent properties of the Ln2Hf2O7-type rare earth hafnates
TLDR
In this paper, the lattice constants of rare earth hafnates were reported and the luminescence of such activators as Eu+3, Tb+3 and Ti+4 in La2Hf2O7 was described.About:
This article is published in Materials Research Bulletin.The article was published on 1984-02-01. It has received 57 citations till now. The article focuses on the topics: Lattice constant.read more
Citations
More filters
Journal ArticleDOI
The 5d level positions of the trivalent lanthanides in inorganic compounds
TL;DR: The literature on 4f n ↔4f n −1 5d transitions of the trivalent lanthanides in inorganic compounds has been collected as mentioned in this paper from critically analyzing fd-excitation, absorption, reflection and df-emission spectra, values for the spectroscopic red shift of 5d levels and the stokes shift were determined.
Journal ArticleDOI
The Eu3+ charge transfer energy and the relation with the band gap of compounds
TL;DR: In this paper, the location of the 13 divalent lanthanides in oxide or fluoride compounds relative to the top of the valence band or the bottom of the conduction band can be obtained by using only three host dependent parameters: (1) the energy of charge transfer from the top to Eu 3 +, (2) the redshift of the first 4 f → 5 d transition in divalent l lanthanide ions, and (3) the EE from the ED to the ED.
Journal ArticleDOI
Solid state chemistry and luminescence of X-ray phosphors
S.L. Issler,C.C. Torardi +1 more
TL;DR: The role of these phosphors is to reduce the exposure of the patient to X-rays while maintaining the structural features of the X-ray image as mentioned in this paper, which is done by amplifying every Xray photon absorbed by a phosphor screen into hundreds of visible- or UV-light photons which are then recorded by a detector, such as a piece of photographic film.
Journal ArticleDOI
Multiband orange-red luminescence of Eu3+ ions based on the pyrochlore-structured host crystal
Shinobu Fujihara,Kazuaki Tokumo +1 more
TL;DR: In this article, pyrochlore-type yttrium stannate (Y2Sn2O7) doped with trivalent europium ions (Eu3+) was synthesized as thin films by the sol−gel method.
Journal ArticleDOI
Structural and electrical properties of HfLaOx films for an amorphous high-k gate insulator
TL;DR: In this paper, the capacitance-voltage curve of metal oxide semiconductor capacitor using the HfLaOx dielectric film has shown a negligible hysteresis and no frequency dispersion, indicating very small degradations of interface and bulk properties.
References
More filters
Journal ArticleDOI
Pyrochlores. V. Thermoanalytic, X-ray, neutron, infrared, and dielectric studies of A2Ti2O7 titanates
TL;DR: In this article, a number of compositions A23+Ti24+O7 and related mixed phases were investigated for the trivalent lanthanons from Sm to Lu, and for Y, the homogeneous A2Ti2O7 phases were of the cu...
Journal ArticleDOI
Preparation and X-Ray Diffraction Data1 for Some Rare Earth Stannates
TL;DR: A series of eight rare earth stannates and yttrium stannate isostructural with pyrochlore was prepared by solid state reaction at elevated temperatures.