Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Jung, Hyuk"'
Autor:
Sang-Kwon Lee, Sung-Jin Kim, Dongsu Park, Jihye Kang, Donghun Lee, Masao Kamiko, Jung-Hyuk Koh
Publikováno v:
Journal of Nanoscience and Nanotechnology. 21:1971-1977
In this research, alternative deposition process of ZnO-based thin films have been studied for transparent conducting oxide (TCO) application. To improve the electrical and optical properties of transparent oxide thin films, alternatively stacked Al-
Publikováno v:
Journal of Nanoscience and Nanotechnology. 21:1978-1983
Figure of merit the product of piezoelectric charge constant and the piezoelectric voltage constant—d33 × g33 in piezoelectric energy harvesting systems are critical measures in energy harvester applications. It is difficult to achieve high figure
Autor:
Seung-Hyun Shin, Kwang-Hun Oh, Tae-Woong Um, Jae-Geun Ha, Tae-Hwan Kim, Masao Kamiko, Jung-Hyuk Koh, Woo-Seong Kim
Publikováno v:
Journal of Nanoscience and Nanotechnology. 20:3231-3238
We analyze and compare the differences in the dewetting phenomena and crystal structure between Ag(5.0 nm) and Au(5.0 nm) layers deposited on a Ti(1.0 nm) seed layer coated onto a MgO(001) substrate. The samples are deposited at room temperature and
Publikováno v:
Journal of Nanoscience and Nanotechnology. 20:520-523
In this study, Ga-doped ZnO thin films were prepared, and their potential for transparent conducting oxide applications was assessed. To increase the electrical mobility and reduce the resistance of Ga-doped ZnO thin films, CO₂ laser annealing was
Autor:
Jihye Kang, Jae-Hoon Ji, Minyoung Park, GaeHun Jo, Sang-Mo Koo, JunHee Hong, Jinhwan Kim, Masao Kamiko, Jung-Hyuk Koh, Jae-Geun Ha
Publikováno v:
Journal of Nanoscience and Nanotechnology. 20:608-610
Light Emitting Diodes (LED) are highly energy efficient and offer long-life times for display applications. Long life and minimal energy consumption are often the most attractive advantages for electronic devices. Because LEDs are based on compound s
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:1538-1542
In this research, energy harvesters with different types of spring-based shock absorbers were invested for the active shock absorber applications. Two different types of spring-based shock absorbers were prepared for the comparison, coil type spring-
Autor:
Wook-Hee Han, Jung-Hyuk Koh
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:1410-1414
Piezoelectric ceramics such as Pb(Zr,Ti)O₃ (PZT) are currently used by electronic devices because of their superb properties. Lead-based ceramics has caused a lot of environmental problems due to their toxicity. So, lead-free ceramics have been stu
Publikováno v:
Journal of Nanoscience and Nanotechnology. 18:6029-6032
In this research, the recycled electrical energy from wasted thermal energy in high power Light Emitting Diode (LED) system will be investigated. The luminous efficiency of lights has been improved in recent years by employing the high power LED syst
Publikováno v:
Journal of Nanoscience and Nanotechnology. 18:6312-6315
Laser direct patterning (LDP) technology has attracted great attention due to its process simplification and environmental friendliness. It is replacing the existing photo-lithography technology. Infrared (IR) laser equipment also has advantages such
Publikováno v:
Journal of Nanoscience and Nanotechnology. 18:5991-5995
In this research, the pyroelectric and piezoelectric properties of (1 - x)Na0.5K0.5NbO3-xBiScO3 ceramics were investigated and analyzed. (Na, K)NbO3 based (1 - x)Na0.5K0.5NbO3-xBiScO3 ceramics were prepared by a conventional mixed oxide method. As th