Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Bum-Ho Choi"'
Publikováno v:
Applied Sciences, Vol 13, Iss 9, p 5315 (2023)
Dependence of the color tunability on the metal free Phthalocyanine (H2Pc) layer thickness in DC-voltage-driven organic light-emitting diodes (OLEDs) was investigated. A H2Pc layer was employed as a blue/red emission layer, which was prepared on an A
Externí odkaz:
https://doaj.org/article/7d350d46814f4d4ab5932c6a9d48268d
Publikováno v:
Micromachines, Vol 14, Iss 1, p 30 (2022)
A DC voltage-dependent color-tunable organic light-emitting diode (CTOLED) was proposed for lighting applications. The CTOLED consists of six consecutive organic layers: the hole injection layer, the hole transport layer (HTL), two emission layers (E
Externí odkaz:
https://doaj.org/article/879ccf5dfc234118a66d6dfc9e5a96b9
Publikováno v:
Micromachines, Vol 10, Iss 10, p 637 (2019)
In order to simulate a circuit by applying various logic circuits and full chip using the HSPICE model, which can consider electrical coupling proposed in the previous research, it is investigated whether additional electrical coupling other than ele
Externí odkaz:
https://doaj.org/article/5a3e87d5d75f4118b63d694a82cb4f81
Autor:
Yong Hyun Kim, Bo-In Park, Moon Hee Kang, Seunggun Yu, Changhun Yun, Soyeon Kim, Joo Won Han, Zeno Rizqi Ramadhan, Dong Chan Lim, Bum Ho Choi
Publikováno v:
Optical Materials. 89:559-562
We demonstrate high performance WO3 TiO2 nanoparticles synthesized by flame spray pyrolysis for the applications in electrochromic devices (ECDs). It is shown that the post-annealing process significantly improves the crystallinity of WO3 TiO2 nanopa
Autor:
Bum Ho Choi, Nam Sung Cho, Kwon Taek Lim, Seunggun Yu, Jonghee Lee, Joo Won Han, Moon Hee Kang, Chul Woong Joo, Changhun Yun, Yoon Kyung Seo, Yong Hyun Kim
Publikováno v:
Organic Electronics. 42:348-354
We demonstrate highly conductive poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate) (PEDOT:PSS) films introduced with a newly investigated solvent 2-ethoxyethanol. The films are optimized by simple solvent post treatment and show enhanced cond
Autor:
Ji Yoon Oh, Jin Hee Kim, Jonghee Lee, Yoon Kyung Seo, Yong Hyun Kim, Moon Hee Kang, Chul Woong Joo, Jeong-Ik Lee, Changhun Yun, Bum Ho Choi, Seunggun Yu
Publikováno v:
Dyes and Pigments. 136:92-96
We have developed down-conversion outcoupling films to enhance the light outcoupling efficiency in white organic light-emitting diodes (OLEDs). The down-conversion outcoupling films consist of outcoupling structures and color conversion materials, wh
Publikováno v:
Micromachines, Vol 10, Iss 10, p 637 (2019)
Micromachines
Volume 10
Issue 10
Micromachines
Volume 10
Issue 10
In order to simulate a circuit by applying various logic circuits and full chip using the HSPICE model, which can consider electrical coupling proposed in the previous research, it is investigated whether additional electrical coupling other than ele
Autor:
Yong Hyun Kim, Yoon Kyung Seo, Jeong-Ik Lee, Jonghee Lee, Joo Won Han, Jae-Hyun Lee, Bum Ho Choi, Chul Woong Joo, Changhun Yun, Jong Su Kim, Seunggun Yu, Ji Yoon Oh, Jin Hee Kim
Publikováno v:
Macromolecular Rapid Communications. 37:1427-1433
Highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) ( Pedot PSS) films as transparent electrodes for organic light-emitting diodes (OLEDs) are doped with a new solvent 1,3-dimethyl-2-imidazolidinone (DMI) and are optimized using
Publikováno v:
Journal of Human Resource Management Research. 22:165-186
Publikováno v:
Journal of the Korean Physical Society. 67:1179-1186
We developed a procedure for fabricating deep silica v-grooves of about 70 μm for fiber-optic applications by using a deep dry-etching with a dual-frequency high-density plasma source. This procedure has the advantages of sub-micron precision with w