Results 1 to 10 of about 133 (120)

Mechanochemical Formation Mechanism of Alloyed AgBi-Elpasolites. [PDF]

J Am Chem Soc
Mechanochemical ball mill synthesis is an emerging method for producing complex materials, including alloyed halide elpasolite semiconductors. This solvent-free method offers precise control over chemical composition, enabling fine-tuning of optical and mechanical properties. However, the formation mechanism of alloyed elpasolites remains unclear.
Jöbsis HJ, Muscarella LA, Andrzejewski M, Casati NPM, Hutter EM.   +4 more
europepmc   +5 more sources

Temperature phase transitions in Rb2KRe3+F6 elpasolites - Raman spectroscopy study

Materials and Devices, 2021
Phase transitions in crystals of fluorine-containing elpasolites are investigated by Raman scattering spectroscopy. It was found that lattice instabilities in these crystals are induced by soft mode condensations, while restorations of these modes in ...
Alexander N VTYURIN, Alexander S. Krylov, Svetlana N. Krylova, Yulia V. Gerasimova, Alexander A. Ivanenko, Vladimir N. Voronov   +5 more
doaj   +6 more sources

(INVITED) Revisiting Duffy's model for Sb3+ and Bi3+ in double halide perovskites: Emergence of a descriptor for machine learning

Optical Materials: X, 2021
The Duffy's model is reformulated for Sb3+ and Bi3+ in cubic chloro- and bromo-elpasolites with « 0D » perovskite structure. The new equation allows calculating the energy of the first s2 → s1p1 electron transition from crystal structure data. The Stokes
Philippe Boutinaud
doaj   +1 more source

Elpasolite scintillators. [PDF]

, 2012
This work was funded by the U.S. Department of Energy Office of Nonproliferation Research to develop elpasolite materials, with an emphasis on high-atomic-number rare-earth elpasolites for gamma-ray spectrometer applications. Low-cost, high-performance gamma-ray spectrometers are needed for detection of nuclear proliferation.
Doty, F. Patrick, Zhou, Xiao Wang, Yang, Pin, Rodriguez, Mark Andrew   +3 more
openaire   +1 more source

Phases of Anionic Ordering in Elpasolite Structures (Ordered Perovskites

Journal of Siberian Federal University. Mathematics & Physics, 2016
The 108 dissymmetric phases were obtained as a result of X anions ordering in elpasolite structure A2BB ′ X6 (ordered perovskite) using group theoretical methods. The critical order parameters which transform according to the irreducible representations of 􀀀 and X points of Brillouin zone of O5 h—Fm 3m space group were considered only.
Sevryukov, Roman G., Safonov, Ivan N., Molokeev, Maksim S., Misyul, Sergey V.   +3 more
openaire   +6 more sources

Influence of 10 nm Hole and Electron Transport Layers on Enhancing the Efficiency of Elpasolite Solar Cell (ESC) With Dual Light Active Layers for Nanostructured Photovoltaic Applications

IEEE Access
Elpasolites are expected to be promising photovoltaic semiconductor alternatives to lead-based perovskite semiconductors. Concern over the stability and toxicity of lead halide perovskites has led to an increase in interest in the environmental friendly ...
G. P. S. Prashanthi, Umakanta Nanda
doaj   +1 more source

The Rebirth of Elpasolites as Halide DoublePerovskites: From Theory to Potential Applications

Advanced Photonics Research
This perspective highlights the change in scientific focus after the past millennium from basic science to application. It follows the history of elpasolites, which were redesignated as halide double perovskites from the research focus about 8 years ago.
Peter A. Tanner, Ka-Leung Wong
doaj   +1 more source

Absorption and Emission Spectra of Ce³⁺ in Elpasolite Lattices [PDF]

Journal of the American Chemical Society, 2003
The experimental determination of the electronic energy levels for Ce(3+) in some chloroelpasolite hosts for both the ground 4f(1) and the excited 5d(1) configurations is described. High-resolution f-f absorption and f-(2)T(2g) d absorption and emission spectra have been recorded at low temperatures for Ce(3+) diluted into various hexachloroelpasolite ...
Tanner, Peter A., Mak, Chris S.K., Edelstein, Norman M., Murdoch, Keith M., Liu, Guokiu, Huang, Jin, Seijo, Luis, Barandiaran, Zoila   +7 more
openaire   +3 more sources

The luminescence of arsenic(III) in the cubic elpasolite Cs2NaScCl6

Chemical Physics Letters, 1987
Luminescence spectra and decay time measurements of the 4s2 ion As3+ in CS2NaScCl6 are presented. A dynamical Jahn-Teller effect is observed in the excitation spectrum of the As3+ ion. The luminescence properties of Cs2NaScCl6-As3+ are comparable to those of Cs2NaScCl6-Sb3+ taking into account the differences in ionic radius and spin-orbit coupling ...
Oomen, E.W.J.L., Smit, W.M.A., Blasse, G.   +2 more
openaire   +2 more sources

Which Ion Dominates the Temperature and Pressure Response of Halide Perovskites and Elpasolites? [PDF]

J Phys Chem Lett, 2023
Muscarella LA, Jöbsis HJ, Baumgartner B, Prins PT, Maaskant DN, Petukhov AV, Chernyshov D, McMonagle CJ, Hutter EM.   +8 more
europepmc   +1 more source