Zobrazeno 1 - 10 of 24 pro vyhledávání: '"June Won Hyun"'
1
Effect of Sintering Temperature on the Characteristics of Zn0.99Li0.01O Thin Film on Si Substrate
Autor: June Won Hyun, Gang Bae Kim
Publikováno v: Korean Journal of Metals and Materials. 58:257-262
Lithium-doped zinc oxide (Zn0.99Li0.01O) film was manufactured by the sol-gel method using uniform and stable solution of zinc acetate dehydrate and lithium acetate dehydrate in methanol. Films were deposited by spin-coating using spinner between 450
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4195dcd267cf856e329b574f29ebd67
https://doi.org/10.3365/kjmm.2020.58.4.257
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2
Ferroelectrically Switching Helical Columnar Assembly Comprising Cisoid Conformers of a 1,2,3‐Triazole‐based Liquid Crystal
Autor: Suwoong Kim, Byoung-Ki Cho, Tae Joo Shin, June Won Hyun, Jaeduk Byun, Kahyun Hur, Manh Linh Nguyen
Publikováno v: Angewandte Chemie International Edition. 58:2749-2753
The 1,2,3-triazole molecule, which is a product of click chemistry, possesses a high dipole moment and can be a useful polar motif for ferroelectric columnar liquid crystal (LC) materials-though it has not been used to date. Herein, we report the hel
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::060ed74263c5b5e351c7c07ce06e24c9
https://doi.org/10.1002/anie.201813195
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3
Fabrication of Lead-free (K0.5Na0.5)1−xAg x NbO3 Ferroelectric Ceramics and Their Dielectric Properties
Autor: Kristóf Bobor, Yeon Jung Kim, Jaeduk Byun, June Won Hyun
Publikováno v: Journal of the Korean Physical Society. 72:726-730
In this study, lead-free (K0.5Na0.5)1−xAg x NbO3 (x = 0.00, 0.10, 0.15, 0.20, 0.25, and 0.30) ferroelectric ceramics were fabricated using solid-state synthesis without A-site and B-site manufacturing step. The (K0.5Na0.5)1−xAg x NbO3 ceramics we
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c8cdc59e3e73ee511806db5adba99f7
https://doi.org/10.3938/jkps.72.726
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5
Optical and biological properties of plasma-treated Neurospora crassa spores as studied by absorption, circular dichroism, and Raman spectroscopy
Autor: Ju Ho Lee, Gang Bae Kim, June-Won Hyun, Yeon Jung Kim
Publikováno v: Journal of the Korean Physical Society. 71:670-678
Zn1−xLixO films were spin-coated on platinum substrates by using sol-gel method. The XRD pattern demonstrated that the Li doped ZnO films exhibits the hexagonal wurtzite structure. And, the 18.5 ◦ peak was found at dopant content from 0.15 to 0.2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62a0bfa8e1471e8f8d6e7ee8fdf360c1
https://doi.org/10.3938/jkps.71.670
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6
Raman and dielectric spectroscopy in the disordered Pb(Sc1/2Nb1/2)O3 relaxor fabricated by using a one-step mixed oxide method
Autor: June Won Hyun, Yeon Jung Kim, Jae Duk Byun
Publikováno v: Journal of the Korean Physical Society. 66:1057-1061
Complex perovskite Pb(Sc1/2Nb1/2)O3 ceramics were prepared under three different conditions by using the conventional mixed oxide method. Sintering under different conditions resulted in complete formation of the perovskite phase in all of the sample
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70d1d5726aa4ef99ac63197ad27e9bcd
https://doi.org/10.3938/jkps.66.1057
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7
Properties of the phase transition in a ZnO film on silicon substrate
Autor: Ju Ho Lee, Gang Bae Kim, June Won Hyun
Publikováno v: Journal of the Korean Physical Society. 64:886-890
ZnO films were spin-coated on silicon substrates by using the sol-gel method and were characterized as a function of the sintering temperature (600 ∼ 1000 °C). The phase transition from the ZnO phase to the Zn2SiO4 phase was investigated by using
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7438eb15f1ed764dd4c98ccf0801fed7
https://doi.org/10.3938/jkps.64.886
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8
Electrical response of mixed regions in the Pb(Mg1/3Ta2/3)O3 and the Pb(Mg1/3Nb2/3)O3 complex perovskites
Autor: June Won Hyun, Yeon Jung Kim, Seung Jeong Noh
Publikováno v: Journal of the Korean Physical Society. 63:1601-1608
The dielectric properties of the Pb(Mg1/3Ta2/3)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ternary systems were examined as a function of temperature. The split (002) or (200) X-ray diffraction patterns were in the 2θ range of 43.5 ∼ 45.5° for xPb(Mg1/3Ta2/3)O3-(
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::454068b5de6bf4ec762bdddecc31f6e9
https://doi.org/10.3938/jkps.63.1601
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9
Effect of La2O3 modified on pyroelectric properties of 0.69Pb(Mg1/3Nb2/3)O3-0.31PbTiO3 solid solutions
Autor: Yeon Jung Kim, June Won Hyun, Ju Ho Lee, Ky Am Lee
Publikováno v: Electronic Materials Letters. 8:581-585
The pyroelectric and polarization properties of La2O3 modified 0.69Pb(Mg1/3Nb2/3)O3-0.31PbTiO3 solid solution systems were examined by the static technique as a function of temperature. The peak temperature of the pyroelectric coefficient maxima was
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18ba2780e690d88428bb8b8e36009c04
https://doi.org/10.1007/s13391-012-2067-1
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10
Effect of annealing on ZnO thin films prepared by using the sol-gel method
Autor: Ju Ho Lee, Jae Soo Shin, Gang Bae Kim, Yeon Jung Kim, June Won Hyun
Publikováno v: Journal of the Korean Physical Society. 60:1118-1123
ZnO thin films were spin-coated on Pt substrats (Pt/Ti/SiO2/Si) by using a sol-gel process and were characterized as a function of sintering temperature. The films were annealed at 600, 650, 700, and 750 °C to find the optimum annealing temperature
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5bb4aad3f180d32a2cc2ee770ba2308
https://doi.org/10.3938/jkps.60.1118
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