Zobrazeno 1 - 10
of 147
pro vyhledávání: '"SOK WON KIM"'
Autor:
Kossi A. A. Min-Dianey, Top Khac Le, Akeel Qadir, Noé Landry Privace M’Bouana, Muhammad Malik, Sok Won Kim, Jeong Ryeol Choi, Phuong V. Pham
Publikováno v:
Nanomaterials, Vol 11, Iss 11, p 2934 (2021)
Graphene-based optical sensing devices have been widely studied for their broad band absorption, high carrier mobility, and mechanical flexibility. Due to graphene’s weak light absorption, studies on graphene-based optical sensing thus far have foc
Externí odkaz:
https://doaj.org/article/63e3b26bdd014ef5b1305fad2d8a8117
Publikováno v:
AIP Advances, Vol 2, Iss 1, Pp 012168-012168-6 (2012)
The relationship between the first-order metal-insulator transition (MIT) and the structural phase transition (SPT) in VO2 film is analyzed by dielectric function, optical conductivity, plasma energy, and electrical conductivity. The MIT and SPT temp
Externí odkaz:
https://doaj.org/article/a519fd93a6524abc8562d370a64170e2
Publikováno v:
AIP Advances, Vol 3, Iss 5, Pp 052129-052129 (2013)
The temperature dependence of the interband transition in an α-V2O5 film was investigated using absorption and photoluminescence spectral measurements at a temperature range of 10–300 K. Transmission measurements in the experimental temperature ra
Externí odkaz:
https://doaj.org/article/e15e1881ae734e149e3e222d2d8d6e2b
Autor:
Top Khac Le, Phuong V. Pham, Chung-Li Dong, Naoufal Bahlawane, Dimitra Vernardou, Issam Mjejri, Aline Rougier, Sok Won Kim
Publikováno v:
Journal of Materials Chemistry C. 10:4019-4071
Smart multifunctional V2O5 is an appealing oxide for energy-saving and energy-storage applications.
Publikováno v:
Ceramics International. 47:8834-8839
Bulk-type pellet thermoelectric devices were fabricated by pressing tungsten (W)-doped V2O5 (WxV2-xO5) nanospheres that were synthesized by chemical reaction, and their performance was studied. The sizes of the synthesized WxV2-xO5 nanospheres (x = 0
Publikováno v:
High Temperatures-High Pressures. 50:277-285
The change in refractive index with respect to temperature (dn/dT) is defined as the thermo-optic coefficient. It varies according to the light wavelength and temperature, so it is a very important physical quantity that influences light propagation.
Publikováno v:
High Temperatures-High Pressures. 50:355-367
Nanofluids containing vanadium dioxide (VO2) are used in applications such as actuators, smart windows, and gastrointestinal tracts. Therefore, measuring the thermal conductivity of nanofluids with VO2 characteristics is important in various environm
Autor:
HYEON HWANGBO1, SOK WON KIM1 sokkim@ulsan.ac.kr
Publikováno v:
High Temperatures - High Pressures. 2019, Vol. 48 Issue 1/2, p83-91. 9p.
Publikováno v:
Ceramics International. 45:15781-15798
Bulk V2O5 is a diamagnetic semiconductor with a band gap (Eg) of about 2.3 eV, which is based on the ionic configuration with filled O2p and unoccupied V3d orbitals. However, the band edge absorption and photoluminescence (PL) peak positions of low-d
Publikováno v:
Materials Science in Semiconductor Processing. 100:159-166
Vanadium pentoxide (V2O5) nanospheres and nanohollows were fabricated by wet chemical reaction and hydrothermal methods. X-ray diffraction (XRD) and Raman spectroscopy reveal that the V2O5 nanostructures have an α-V2O5 phase with orthorhombic struct