Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Kang Bok Ko"'
Autor:
Beo Deul Ryu, Hyeon-Sik Jang, Kang Bok Ko, Min Han, Tran Viet Cuong, Chel-Jong Choi, Chang-Hee Hong
Publikováno v:
Applied Nano, Vol 5, Iss 1, Pp 1-13 (2023)
We synthesized a boron-doped reduced graphene oxide (BrGO) material characterized by various electrical properties, through simultaneous thermal reduction and doping procedures, using a metal–organic chemical vapor deposition technique. X-ray photo
Externí odkaz:
https://doaj.org/article/eb214cff3e294b49842d5d8867381744
Publikováno v:
physica status solidi (b).
Autor:
Dong Ick SON, Young Jae Park, Jaeho Shim, Joo Song Lee, Kyu Seung Lee, Dong Su Shin, Kang Bok Ko, Sang-Youp Yim, Seongjun Kim, Hoon-Kyu Shin, Donghee Park, Yong Ju Yun
Mixed-dimensional composite structures using 0D quantum dots (QDs) and 2D transition metal dichalcogenides (TMDs) materials are expected to attract great interest in optoelectronics due to potential to generate new optical properties. Here, we report
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::930cbb55093d5da23a34cc10c80fde79
https://doi.org/10.21203/rs.3.rs-2751403/v1
https://doi.org/10.21203/rs.3.rs-2751403/v1
Publikováno v:
Applied Surface Science. 481:524-530
A multidimensional graphene and ZnO-based heterostructure for flexible transparent ultraviolet photodetector (UV-PD) applications is successfully fabricated on an indium tin oxide-coated polyethylene terephthalate substrate (ITO-coated PET). In this
Autor:
Kyu-Han Lee, Do Trong Thanh, Noh-Joon Park, Min Han, Kwanseon Ju, Jae Hyung Ryu, Kang Bok Ko, Nam Han, Chang-Hee Hong, Kyurin Kim, Yongsu Lim, Chang Hee Jo, Tran Viet Cuong, Beo Deul Ryu
Publikováno v:
Materials Research Bulletin. 110:76-81
Three–dimensional thermal interface materials made of graphene oxide (GO) and copper nanoparticles (Cu NPs) were applied for enhancing light–emitting diode heat dissipation. The effect of the stacking order of GO and Cu NPs on thermal resistance
Autor:
Kang Bok Ko, Tran Viet Cuong, Beo Deul Ryu, Chang Hee Jo, Nam Han, Chang-hyun Lim, Chang-Hee Hong, Min Han
Publikováno v:
Journal of Crystal Growth. 507:316-320
Hexagonal boron nitride (hBN) combined with III-nitride materials is attracting increasing attention for widening the applications of III-nitride materials. Three methods were used to grow the hBN buffer layer: (i) 2-step (low and high temperature),
Autor:
Kang Bok Ko, Chang-Hee Hong, Do Trong Thanh, Tran Viet Cuong, Zagarzusem Khurelbaatar, Chel-Jong Choi
Publikováno v:
Materials Research Bulletin. 91:49-53
A combination of graphene quantum dots and chemically reduced graphene oxide films was obtained by spray-coating their dispersions onto an indium tin oxide coated polyethylene terephthalate substrate. Herein, the graphene quantum dots played a major
Autor:
Jung-Hwan Hyung, Chang-Hee Hong, Young Jae Park, Min Han, Kang Bok Ko, Ko Ku Kang, Nam Han, Tran Viet Cuong, Beo Deul Ryu
Publikováno v:
Materials Science in Semiconductor Processing. 59:45-49
We investigated the thermal stability and electrical properties of nitrogen-doped reduced graphene oxide (NrGO)/n–type Si solar cells. A NrGO layer was used as a transparent electrode as well as an electron-hole separation layer simultaneously. The
Autor:
Min Han, Kang Bok Ko, Tran Viet Cuong, Beo Deul Ryu, Young Jae Park, Jung-Hwan Hyung, Chang-Hee Hong, Jaehee Cho
Publikováno v:
Materials Science in Semiconductor Processing. 44:1-7
We investigated the effect of the size of graphene oxide (GO) sheets made with two different types of GO solution on the performance of Si-based solar cells. Large-sized reduced GO (rGO) with an in-plane crystalline diameter of 3.42 nm has smaller de
Publikováno v:
Journal of Nanomaterials, Vol 2016 (2016)
The effect of ZnO nanostructures on the light output power of 375 nm near-ultraviolet light-emitting diodes (NUV-LEDs) was investigated by comparing one-dimensional (1D) nanorods (NR-ZnO) with two-dimensional (2D) nanosheets (NS-ZnO). ZnO nanostructu