Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Maengjun Kim"'
Autor:
MaengJun Kim, Yung Ho Kahng, Yong Jae Kim, T. Prem kumar, KwangMook Park, Kwanghee Lee, Jae-Hyung Jang
Publikováno v:
AIP Advances, Vol 3, Iss 3, Pp 032121-032121 (2013)
The plasma reduction process for the production of reduced graphene oxide (rGO) requires precise process control in order to avoid the degradation of electrical characteristics. We report that the reduction status of the graphene oxides could be dete
Externí odkaz:
https://doaj.org/article/8b4d063db1484ca6b4ea04d4082d913f
Publikováno v:
Journal of Nanomaterials. 2022:1-8
To improve its light conversion efficiency, NaYF4:(Yb3+, Er3+) upconversion (UC) phosphor, which generates one visible photon by absorbing two or more near-infrared photons, was coated with SiO2 nanoparticles. The surface modification of phosphor was
Autor:
Maengjun Kim, Myung-Hwan Jung, Jun Mok Ha, Jaekwon Suk, Hye-ran Jeon, Jae S. Lee, Dong-Seok Kim, Chan Young Lee, Chorong Kim, Yong-Seok Hwang, Jun Kue Park, Won-Je Cho, Sunmog Yeo
Publikováno v:
Journal of the Korean Physical Society. 77:395-398
We have developed a real-time dose monitoring system for a low-energy ion-beam facility. Before we developed the monitoring system, the system had given a substantial error of ±23% when we irradiated an ion beam with a dose as much as 3.0 × 1016 cm
Autor:
Hyunsil Cha, Maengjun Kim, Jeong Chan Park, Hyung Joon Cha, Jun Kue Park, Do Hyeon Kim, Yongmin Chang, Jeong Hyun Seo, Tae Yoon Park, Gyeong Tae Lee
Publikováno v:
Journal of Industrial and Engineering Chemistry. 77:408-415
To date, it is unknown whether the combination of Dy ions and superparamagnetic iron oxide (SPIO; Fe3O4) NPs can offer improved performance in UHF-MRI. In this work, we provide a paradigm of hierarchical surface-structured (His) DyxFe3-xO4 NPs as T2
Autor:
MaengJun Kim, Sang Ho Sohn
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:1399-1402
To improve the light conversion efficiency of the upconversion phosphor NaYF₄:Yb3+, Tm3+ for use in solar cells, its phosphor surface was treated by removing the NaF phase from the surface of the NaYF₄ host crystals. The surface of the phosphor w
Autor:
Bokyung Sung, Jeong Hyun Seo, Gyeong Tae Lee, Yongmin Chang, Young-Mi Lee, Hee-Kyung Kim, Jeong Chan Park, Maengjun Kim
Publikováno v:
ACS Applied Materials & Interfaces. 10:25080-25089
Relaxivity tuning of nanomaterials with the intrinsic T1–T2 dual-contrast ability has great potential for MRI applications. Until now, the relaxivity tuning of T1 and T2 dual-modal MRI nanoprobes h...
Publikováno v:
Materials Letters. 181:272-277
Lanthanide (LN)-doped magnetite (Fe3O4) nanoparticles (NPs) were prepared initially as seeding materials, which was followed by the reduction of Au acetate on the surface of the core to produce LN: Fe3O4@Au core@shell NPs. The magnetite NPs were dope
Autor:
MaengJun, Kim, SangHo, Sohn
Publikováno v:
Journal of nanoscience and nanotechnology. 19(3)
To improve the light conversion efficiency of the upconversion phosphor NaYF₄:Yb
Publikováno v:
Thin Solid Films. 531:125-130
The influence of precursor stack structure on the formation of CuInSe 2 (CIS) thin films was investigated by structure characterization of samples with single and multiple InSe/CuSe bilayer stacks deposited by co-evaporation on Mo/glass substrates. W
Publikováno v:
Molecular Crystals and Liquid Crystals. 585:67-72
Solar cell modules mainly consist of EVA film and a metal grid. The EVA film is used as waterproof and UV-resistant, which makes it an ideal adhesive film for solar modules installed outdoors. As well, standard crystalline solar cells are generally f