Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Bogyu Kim"'
Autor:
Bogyu Kim, Young-Uk Jeon, Chulwoo Lee, In Soo Kim, Byeong-Hyeon Lee, Young-Hwan Kim, Young Duck Kim, Il Ki Han, Kwanil Lee, Jongbum Kim, JoonHyun Kang
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-7 (2022)
Abstract In this study, we experimentally demonstrate fabrication of ultra-smooth and crystalline barium titanate (BTO) films on magnesium oxide (MgO) substrates by engineering lattice strain and crystal structure via thermal treatment. We observe th
Externí odkaz:
https://doaj.org/article/0f4803079e1e408099c9289f97d65340
Autor:
Van Long Le, Do Duc Cuong, Hoang Tung Nguyen, Xuan Au Nguyen, Bogyu Kim, Kyujin Kim, Wonjun Lee, Soon Cheol Hong, Tae Jung Kim, Young Dong Kim
Publikováno v:
AIP Advances, Vol 10, Iss 10, Pp 105003-105003-6 (2020)
We investigate analytically the anisotropic dielectric properties of single-crystal α-SnS near the fundamental absorption edge by considering atomic orbitals. Most striking is the excitonic feature in the armchair- (b-) axis direction, which is part
Externí odkaz:
https://doaj.org/article/4111fedb23be41b591702d84e852f0b6
Autor:
Xuan Au Nguyen, Thi Minh Hai Nguyen, Tae Jung Kim, Long Van Le, Tung Hoang Nguyen, Bogyu Kim, Kyujin Kim, Wonjun Lee, Sunglae Cho, Young Dong Kim
Publikováno v:
Crystals, Vol 11, Iss 5, p 548 (2021)
We report the dielectric tensors on the cleavage plane of biaxial SnSxSe1-x alloys in the spectral energy region from 0.74 to 6.42 eV obtained by spectroscopic ellipsometry. Single-crystal SnSxSe1-x alloys were grown by the temperature-gradient metho
Externí odkaz:
https://doaj.org/article/2f71af15cd13480c9067e56bacea9fc9
Autor:
Xuan Au Nguyen, Bogyu Kim, Van Long Le, Tae Jung Kim, Hoang Tung Nguyen, Wonjun Lee, Young Dong Kim, Kyu-Jin Kim
Publikováno v:
Journal of the Korean Physical Society. 78:269-274
We report the parameter values of the model dielectric function ( $$\varepsilon = \varepsilon_{1} + i\varepsilon_{2}$$ ) of SnS0.52Se0.48 in the spectral range from 0.74 to 6.42 eV and the temperature range from 27 to 350 K. An analytic representatio
Autor:
Wonjun Lee, Young Dong Kim, Bogyu Kim, Hoang Tung Nguyen, Kyu-Jin Kim, Van Long Le, Tae Jung Kim, Xuan Au Nguyen
Publikováno v:
Journal of the Korean Physical Society. 77:981-986
We report the dielectric function e = e1 + ie2 and the critical point (CP) energies of the orthorhombic SnS0.52Se0.48 alloy for the zigzag (a)and thearmchair(6) directions in the spectral energy range from 0.74 to 6.42 eV and the temperature range fr
Publikováno v:
Journal of the Korean Physical Society. 77:840-844
The GaAsxSb1−x; alloys are particularly promising materials for near-infrared light-emitting diode and detector devices. The optical properties, such as the dielectric function, complex refractive index, and absorption coefficient, are needed to pr
Autor:
Bogyu Kim, Young-Uk Jeon, Chulwoo Lee, In Soo Kim, Byeong-Hyeon Lee, Young-Hwan Kim, Young Duck Kim, Il Ki Han, Kwanil Lee, Jongbum Kim, JoonHyun Kang
Publikováno v:
Scientific reports. 12(1)
In this study, we experimentally demonstrate fabrication of ultra-smooth and crystalline barium titanate (BTO) films on magnesium oxide (MgO) substrates by engineering lattice strain and crystal structure via thermal treatment. We observe that oxygen
Autor:
Young Dong Kim, Tung Hoang Nguyen, Long Van Le, Thi Minh Hai Nguyen, Kyu-Jin Kim, Bogyu Kim, Tae Jung Kim, Wonjun Lee, Sunglae Cho, Xuan Au Nguyen
Publikováno v:
Crystals
Volume 11
Issue 5
Crystals, Vol 11, Iss 548, p 548 (2021)
Volume 11
Issue 5
Crystals, Vol 11, Iss 548, p 548 (2021)
We report the dielectric tensors on the cleavage plane of biaxial SnSxSe1-x alloys in the spectral energy region from 0.74 to 6.42 eV obtained by spectroscopic ellipsometry. Single-crystal SnSxSe1-x alloys were grown by the temperature-gradient metho
Autor:
Van Long Le, Thi Minh Hai Nguyen, Tae Jung Kim, Xuan Au Nguyen, Wonjun Lee, Young Dong Kim, Sunglae Cho, Hoang Tung Nguyen, Bogyu Kim, Kyu-Jin Kim
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
We report the temperature dependence of the dielectric function ε = ε1 + iε2 and critical point (CP) energies of biaxial α-SnS in the spectral energy region from 0.74 to 6.42 eV and temperatures from 27 to 350 K using spectroscopic ellipsometry.