Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Chae Hyun Kwak"'
Publikováno v:
Journal of Luminescence. 132:375-380
BaO–SiO 2 :Eu 2+ phosphors with different Ba/Si mole ratio were prepared using a solid-state reaction method, and their crystal structure dependent-photoluminescence properties were investigated. The prepared phosphor powders were characterized usi
Autor:
Sangwook Lee, Dong Hoe Kim, Jung-Kun Lee, In Sun Cho, Dong Kyun Yim, Kug Sun Hong, Chae Hyun Kwak
Publikováno v:
Journal of Nanoscience and Nanotechnology. 11:8748-8753
Nanophosphors based on green emitting terbium doped yttrium silicates with the general formula Y SiO :Tb with a size of 30∼60 nm were synthesized by the hydrothermal method. The prepared nanophosphors were characterized by X-ray diffraction, field-
Autor:
Dong-Wook Kim, Jung-Kun Lee, Tae Hoon Noh, Sangbaek Park, Sangwook Lee, Kug Sun Hong, Duk Kyu Lee, Hyun Suk Jung, In Sun Cho, Chae Hyun Kwak
Publikováno v:
Journal of Photochemistry and Photobiology A: Chemistry. 213:129-135
Nitrogen-doped TiO 2 (N-TiO 2 ) nanoparticles with a homogeneous anatase structure were synthesized using three different chemical methods. X-ray photoelectron spectra (XPS) analysis shows that nitrogen was successfully doped into TiO 2 nanoparticles
Publikováno v:
Journal of Nanoscience and Nanotechnology. 10:1185-1190
Cu2PO4OH with various hierarchical morphologies were synthesized using a hydrothermal method by simple adjusting the pH value and temperature. The prepared powders were characterized by X-ray diffraction (XRD), Raman spectroscopy, fourier-transform i
Autor:
Jin Yong Kim, Hyun Suk Jung, Sangwook Lee, Jae Sul An, In Sun Cho, Hyun Soo Han, Jun Hong Noh, Chae Hyun Kwak, Chin Moo Cho, Kug Sun Hong, Jung-Kun Lee
Publikováno v:
physica status solidi (a). 206:2133-2138
Epitaxial ZnO and Al-doped ZnO (AZO) thin films were grown on (0001)-sapphire substrates using pulsed laser deposition. The photoluminescence spectrum of the highly conductive (1.3 × 103 S cm−1), as-grown AZO shows a poor near band edge (NBE) emis
Publikováno v:
The Journal of Physical Chemistry C. 113:10647-10653
Novel SnWO4 visible-light active photocatalysts with two polymorphs (orthorhombic α and cubic β phases) were prepared by a conventional solid-state reaction method, and their optical properties, electronic band structure, and photocatalytic activit
Autor:
Kug Sun Hong, Dong Wan Kim, Chae Hyun Kwak, Sung Hun Yoon, Jun Hong Noh, Shin Tae Bae, Sangwook Lee, Hyun Suk Jung, In Sun Cho, Dong-Wook Kim
Publikováno v:
Advanced Functional Materials. 18:2154-2162
Using a wet-chemical method and without any surfactants or templates, various 3D hierarchical superstructures of Cu2PO4OH were synthesized by simply adjusting the pH. The resulting hierarchical superstructures were characterized using X-ray diffracti
Autor:
Dong Kyun, Yim, In-Sun, Cho, Sangwook, Lee, Chae Hyun, Kwak, Dong Hoe, Kim, Jung-Kun, Lee, Kug Sun, Hong
Publikováno v:
Journal of nanoscience and nanotechnology. 11(10)
Nanophosphors based on green emitting terbium doped yttrium silicates with the general formula Y2SiO5:Tb3+ with a size of 30-60 nm were synthesized by the hydrothermal method. The prepared nanophosphors were characterized by X-ray diffraction, field-
Publikováno v:
Journal of nanoscience and nanotechnology. 10(2)
Cu2PO4OH with various hierarchical morphologies were synthesized using a hydrothermal method by simple adjusting the pH value and temperature. The prepared powders were characterized by X-ray diffraction (XRD), Raman spectroscopy, fourier-transform i