Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Rihong Cong"'
Autor:
Pengfei Jiang, Joerg C. Neuefeind, Maxim Avdeev, Qingzhen Huang, Mufei Yue, Xiaoyan Yang, Rihong Cong, Tao Yang
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Lone pair cations can impart interesting features in some structures, such as noncentrosymmetry. Here the authors show unexpected cell volume expansion in a polar “114”-type oxide upon replacing Ba2+ with a smaller Pb2+, and attribute it to high
Externí odkaz:
https://doaj.org/article/d53d9fef03ae465b90ab0236c0db39ec
Publikováno v:
Dalton Transactions. 52:3458-3471
A small A-cation in the ALaLiTeO6:Mn4+ phosphors leads to a compact structure and MnO6-octahedron, further resulting in a redshift in luminescence spectra and a remarkable enhancement in quantum efficiency and thermal stability.
Publikováno v:
Inorganic Chemistry Frontiers. 10:2776-2787
Extraordinarily high quantum efficiency and abnormal negative thermal quenching were simultaneously achieved in oxide phosphors Ca7Mg2Ga6−yAlyO18:Mn4+ by structurally confining Mn4+-emitters at isolated octahedral sites.
Publikováno v:
Journal of Rare Earths. 40:1181-1186
Rare earth (RE) pentaborates, both α- and β-polymorphs, are good candidates for photoluminescent hosts suitable for various RE activators. Ce3+ acts not only as an activator itself, but also as a sensitizer to other rare earth activators, like in t
Publikováno v:
Journal of Materials Chemistry C. 10:17714-17722
LiCa(Y0.99Ce0.01)5(BO3)6 has a high IQY of 51%, which can be enhanced to 89% by co-doping 20% Tb3+. The maximal wavelength of Ce3+ PL emission is highly sensitive to the applied pressure, which exhibits a linear red-shift (∼43 nm) up to 20.1 GPa.
Autor:
Wenliang Gao, Yuhang Chen, Fuwei Jiang, Jia Yang, Pengfei Jiang, Rihong Cong, Tao Yang, Hengwei Wei
Publikováno v:
Inorganic Chemistry. 60:12580-12590
Stuffed tridymites AM2O4 composed of a condensed MO4-tetrahedra-based framework have been widely investigated due to their structural diversity and rich physical properties. Herein, the strategy of stuffing mixed Ca2+ and Sr2+ cations into the [Ga2O4
Publikováno v:
The Journal of Physical Chemistry C. 125:13291-13303
Publikováno v:
Journal of Solid State Chemistry. 322:123993
Publikováno v:
The Journal of Physical Chemistry Letters. 12:1772-1776
Mechanistic understanding on the electronic structure of α'-Ga2S3 unravel that the electrons in nonbonding 3pz orbitals of two-coordinated S2- anions are photoexcited to the adjacent σ-type antibonding orbitals (Ga-4s and S-3p) and migrate thereaft
Publikováno v:
Chemical Communications. 57:536-539
Rutile GeO2 with d10 metal in octahedral coordination possesses both a high charge separation rate and carrier mobility because the partial charge density is dominated by Ge-O anti-bonding for CBM. GeO2 is capable of photocatalytic water splitting, e