Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Sang Do Han"'
Publikováno v:
Processing and Application of Ceramics, Vol 3, Iss 1-2, Pp 19-28 (2009)
In this paper the peculiarities of phase composition and morphology of metal oxides synthesized by successive ionic layer deposition (SILD) method are discussed. The main attention is focused on SnO2–based metal oxides, which are promising material
Externí odkaz:
https://doaj.org/article/8a9941fdf3df49acb95c08c693544fa8
Publikováno v:
Sensors, Vol 6, Iss 5, Pp 526-535 (2006)
The precursors of SnO2 or In2O3/SnO2 nanocrystlline powders have been prepared bythe sol-precipitation method. The precursors were calcined at different temperatures to prepareSnO2 or In2O3/SnO2 nanocrystalline powders with different particle sizes.
Externí odkaz:
https://doaj.org/article/e360c7d202a44362b7ec91d8d5073d68
Autor:
Kim Sang Hyung, Dong-Won Kim, Bok Seong Park, Sang Do Han, Bo Ra Jeong, Seung-Bo Hong, Dong Kwan Han
Publikováno v:
Journal of Electrochemical Science and Technology. 10:294-301
The quasi-solid-state hybrid electrolytes were synthesized by chemical cross-linking reaction of methacrylate-functionalized SiO2 (MA-SiO2) and tetra (ethylene glycol) diacrylate in aqueous electrolyte. A quasi-solid-state electrolyte synthesized by
Autor:
Sang-do Han
Publikováno v:
Journal of Korean Modern and Contemporary History. 88:209-245
Autor:
Sang Do Han
Publikováno v:
The Historical Association for Soong-Sil. 36:163-196
Publikováno v:
Materials Science and Engineering: B. 178:1436-1442
Tb3+ doped SrLa2O4 and BaLa2O4 nanophosphors were successfully synthesized via tartaric acid assisted sol–gel method and their luminescent properties were investigated. The crystal structure and morphology of SrLa2O4:Tb3+ and BaLa2O4:Tb3+ was studi
Publikováno v:
Ceramics International. 39:4801-4811
Enhanced red luminescence in LnVO 4 : Bi 3+ , Eu 3+ @ SiO 2 phosphors has been improved mainly in three stages by investigating the effects of: (i) host composition (Gd, Y and Gd/Y), (ii) co-doping Bi 3+ as a sensitizer and finally (iii) SiO 2 shell
Autor:
Sang-Do Han, U. Rambabu
Publikováno v:
Ceramics International. 39:1603-1612
Vanadate based down conversion phosphors have been synthesized by a novel co-precipitation technique. The effect of pH on crystal structure, particle size, morphology and luminescence properties were investigated by XRD, SEM-EDAX, FT-IR and PL measur
Autor:
Sang-Do Han, U. Rambabu
Publikováno v:
Materials Research Bulletin. 48:512-520
An attempt was made to enhance the luminescence properties of LnVO4:Eu3+@ SiO2 (Ln = Gd, Y and Gd/Y) powder phosphors. Pure phase with tetragonal structure of the produced phosphors was confirmed by XRD profiles. Sub-micron sized phosphors have shown
Autor:
U. Rambabu, Sang-Do Han
Publikováno v:
Ceramics International. 39:701-708
Ln 0.97 VO 4 :Bi 0.03 3+ and (Ln1 0.5 , Ln2 0.5 ) 0.97 VO 4 :Bi 0.03 3+ (where Ln=La, Gd and Y) down conversion (DC) phosphors have been synthesized by a novel co-precipitation technique followed by heat-treatment. The influence of lanthanide host co