Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Chong Geng Ma"'
Publikováno v:
Light: Science & Applications, Vol 13, Iss 1, Pp 1-12 (2024)
Abstract Materials capable of dynamic persistent luminescence (PersL) within the visible spectrum are highly sought after for applications in display, biosensing, and information security. However, PersL materials with eye-detectable and excitation-w
Externí odkaz:
https://doaj.org/article/2e69085888954c48973095f65f406cd0
Autor:
Miroslav D. Dramićanin, Łukasz Marciniak, Sanja Kuzman, Wojciech Piotrowski, Zoran Ristić, Jovana Periša, Ivana Evans, Jelena Mitrić, Vesna Đorđević, Nebojša Romčević, Mikhail G. Brik, Chong-Geng Ma
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-13 (2022)
The Ca6Ba(PO4)4O:Mn5+ provides ultranarrow near-infrared emission at 1140 nm that can be excited over 500–1000 nm spectral range, which makes this material an excellent near-infrared phosphor and blue/turquoise pigment.
Externí odkaz:
https://doaj.org/article/41b8fac468194daeb187a5d6267e36d3
Autor:
Mikhail G. Brik, Chong-Geng Ma
Publikováno v:
Optical Materials: X, Vol 19, Iss , Pp 100251- (2023)
Externí odkaz:
https://doaj.org/article/6158d2120edc4552a9c4d69b0bb8e682
Autor:
Umar Zafari, Musashi Sagayama, Mekhrdod Subhoni, Alok M. Srivastava, William W. Beers, William E. Cohen, Chong-Geng Ma, Michal Piasecki, Mikhail G. Brik, Tomoyuki Yamamoto
Publikováno v:
Optical Materials: X, Vol 16, Iss , Pp 100197- (2022)
Influence of co-dopings of divalent ions such as Mg2+, Zn2+, Cd2+ and Sr2+ ions in Mn4+-doped CaAl12O19 red phosphor on its photoluminescence characteristics has been investigated. Samples of Mn4+-doped CaAl12O19 and co-doped with Mg2+, Zn2+, Cd2+ an
Externí odkaz:
https://doaj.org/article/2a2b687d86224f31834aaf0470030493
Publikováno v:
Materials, Vol 15, Iss 22, p 7999 (2022)
The optical and magneto-optical characteristics of KTb3F10 crystals in the transition region of 5D4 → 7F6 4f8 configurations of the Tb3+ ion at temperatures of 90 and 300 K were studied. The schemes of the optical transitions in the KTb3F10 crystal
Externí odkaz:
https://doaj.org/article/41ae6a90836442569df8458ac24e123d
Publikováno v:
Inorganic Chemistry Frontiers; 5/7/2024, Vol. 11 Issue 9, p2626-2633, 8p
Autor:
Mekhrdod Subhoni, Umar Zafari, Chong-Geng Ma, Alok M. Srivastava, William W. Beers, William E. Cohen, Mikhail G. Brik, Michal Piasecki, Tomoyuki Yamamoto
Publikováno v:
Materials, Vol 15, Iss 2, p 613 (2022)
Isostatic pressure effects on the elastic and electronic properties of non-doped and Mn4+-doped K2SiF6 (KSF) have been investigated by first-principles calculations within density functional theory (DFT). Bulk modulus was obtained by the Murnaghan’
Externí odkaz:
https://doaj.org/article/e3f01c44dad84669ba5b50ac0cf05b0f
Autor:
Sergei Piskunov, Aleksejs Gopejenko, Vladimir Pankratov, Inta Isakoviča, Chong-Geng Ma, Mikhail G. Brik, Michal Piasecki, Anatoli I. Popov
Publikováno v:
Materials, Vol 14, Iss 19, p 5589 (2021)
In this paper, the density functional theory accompanied with linear combination of atomic orbitals (LCAO) method is applied to study the atomic and electronic structure of the Ti3+ and Ti2+ ions substituted for the host Al atom in orthorhombic Pbnm
Externí odkaz:
https://doaj.org/article/77a926160e70420187b644cfe021f779
Publikováno v:
Nano Research. 16:1586-1594
Publikováno v:
Inorganic Chemistry. 61:13471-13480