Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Keitaro Tezuka"'
Publikováno v:
Journal of Asian Ceramic Societies, Vol 2, Iss 4, Pp 366-370 (2014)
Bismuth chalcogenides (Bi2X3, X = S, Se, Te) were synthesized from the elements under hydrothermal condition. Single phases of Bi2S3 and Bi2Se3 were produced at 240 °C. Bi2Te3 was obtained as an almost single phase with a small amount of Bi2TeO5. Fr
Externí odkaz:
https://doaj.org/article/ab2eea7d2c52466a84e8fe591cc5a03a
Publikováno v:
Ionics.
Publikováno v:
Ionics. 27:3829-3835
Novel NASICON-type LiXIn0.5Z0.5(PO4)3 (X = Ti, Zr; Z = Nb, Ta) oxides were successfully synthesized by solid-state reaction, and resultant crystal structures (space group R-3c) and ionic conductivities were investigated based on a scheme of changed u
Publikováno v:
ChemistrySelect. 5:2588-2592
Autor:
Yoshiyuki Inaguma, Yume Yoshida, Keitaro Tezuka, Yue Jin Shan, Masatomo Yashima, Kotaro Fujii
Publikováno v:
Chemical Communications. 56:10042-10045
The first example of both cation- and anion-ordered rutile-type derivative LiTeO3(OH) (= HLiTeO4) has been discovered. LiTeO3(OH) belongs to a non-centrosymmetric space group P21. Both cations (Li+/Te6+) and anions (O2-/OH-) exhibit occupational orde
Publikováno v:
Journal of the Ceramic Society of Japan. 127:409-413
Autor:
Kotaro, Fujii, Yume, Yoshida, Yue Jin, Shan, Keitaro, Tezuka, Yoshiyuki, Inaguma, Masatomo, Yashima
Publikováno v:
Chemical communications (Cambridge, England). 56(69)
The first example of both cation- and anion-ordered rutile-type derivative LiTeO
Publikováno v:
Optik. 158:1170-1178
A novel Mn-doped red phosphor Ba5Ta4O15:Mn2+ was prepared by solid-state reactions. Electron spin resonance measurements revealed that the Mn emission centers in the phosphors are divalent. In addition, the excitation spectrum was broad with a peak a
Publikováno v:
Materials Research Bulletin. 90:51-58
The luminescence color (green/red) of Mg B2O4:Mn (B = Al, Ga) phosphors was controlled by crystal-site engineering approach through adjusting the quantity of MgO in raw materials. Though the stoichiometric samples (Mg/B = 1:2) indicated both green an
Autor:
Keita Suzuki, Takashi Endo, Yasutaka Matsuo, Yukio Hinatsu, Keitaro Tezuka, Yue Jin Shan, Takuya Ohtsuki, Makoto Wakeshima, Yoshihiro Doi
Publikováno v:
Inorganic Chemistry. 56:2459-2466
The synthesis, crystal structures, photoluminescence, and magnetic properties of the melilite-type oxysulfide Sr2MnGe2S6O were investigated. This compound crystallizes in the melilite structure with space group P421m, in which two kinds of anions, S2