Zobrazeno 1 - 10
of 176
pro vyhledávání: '"Sam-Dong Kim"'
Autor:
Waqar Muhammad, Sam-Dong Kim
Publikováno v:
Chemosensors, Vol 11, Iss 10, p 529 (2023)
Bending strain sensors based on one-dimensional ZnO nanorod (NR) arrays cross-linked with interdigitated electrodes were fabricated on polyethylene terephthalate (PET) substrates. ZnO NRs were grown using the hydrothermal method through the dopings w
Externí odkaz:
https://doaj.org/article/c35984881a044c878f40b6bcf48965af
Autor:
Waqar Muhammad, Sam-Dong Kim
Publikováno v:
Polymers, Vol 15, Iss 7, p 1714 (2023)
We present highly stretchable polypyrrole (PPy)/polydimethylsiloxane strain sensors of highly improved sensitivity and durability fabricated by a chemical oxidative polymerization with oxygen plasma treatment (O2 PT). In this study, O2 PT was perform
Externí odkaz:
https://doaj.org/article/aa0945778222407da67f424dd8e69e27
Autor:
Kathalingam A., Hafiz Muhammad Salman Ajmal, Sivalingam Ramesh, Heung Soo Kim, Sam-Dong Kim, Soo Ho Choi, Woochul Yang, Ki Kang Kim, Hyun-Seok Kim
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 5, Pp 3752-3763 (2019)
Increasing interest and applications for graphene and carbon-based films emphasize the need for economical synthesizing techniques. We report a facile and novel synthesis method to prepare graphene, graphitic carbon, graphitic carbon nitride composit
Externí odkaz:
https://doaj.org/article/4d83e7cc6b094e3e942437feeff88ff5
Publikováno v:
International Journal of Molecular Sciences, Vol 23, Iss 17, p 9541 (2022)
We investigated the effects of the crystalline state for seed layers (SLs) on the growth morphology and material characteristics for hydrothermally grown ZnO nanorods (NRs). For this, preheating (PH) at different temperatures (100–300 °C) and O2 p
Externí odkaz:
https://doaj.org/article/7ee76dfab7704bb1a164f3cb2d57ef9c
Publikováno v:
Nanomaterials, Vol 11, Iss 8, p 2011 (2021)
The crystalline quality of ZnO NR (nanorod) as a sensing material for visible blind ultraviolet PDs (photodetectors) critically depends on the SL (seed layer) material of properties, which is a key to high-quality nanocrystallite growth, more so than
Externí odkaz:
https://doaj.org/article/50174f4a4697456b89bf160f295167de
Autor:
Fasihullah Khan, Waqar Khan, Ji Hyun Kim, Noor ul Huda, Hafiz Muhammad Salman Ajmal, Sam-Dong Kim
Publikováno v:
AIP Advances, Vol 8, Iss 7, Pp 075225-075225-14 (2018)
In this study, we investigated the effect of gate length and surface area of the ZnO ultraviolet (UV) absorbing structure on the transient characteristics of AlGaN/GaN HEMT based UV photodetectors. The gate-areas (2, 6 and 18 μm lengths with same wi
Externí odkaz:
https://doaj.org/article/803511056838481d9fb3640ca89cd582
Publikováno v:
Nanomaterials, Vol 9, Iss 3, p 440 (2019)
Owing to their intrinsic wide bandgap properties ZnO and GaN materials are widely used for fabricating passive-type visible-blind ultraviolet (UV) photodetectors (PDs). However, most of these PDs have a very low spectral responsivity R, which is not
Externí odkaz:
https://doaj.org/article/dc42344efffe4ef7841568648b930ebc
Publikováno v:
Nanomaterials, Vol 8, Iss 6, p 371 (2018)
We examined the influence of O2 plasma treatment for the ZnO seed layer (SL) crystallites on the material characteristics of ZnO nanorods (NRs) synthesized by the hydrothermal method. Diode photocurrent and photo-response transient characteristics of
Externí odkaz:
https://doaj.org/article/e1874dbc259a426eb3aacc4472ce1613
Autor:
Waqar Khan, Fasihullah Khan, Hafiz Muhammad Salman Ajmal, Noor Ul Huda, Ji Hyun Kim, Sam-Dong Kim
Publikováno v:
Nanomaterials, Vol 8, Iss 2, p 68 (2018)
In this study, the ambient condition for the as-coated seed layer (SL) annealing at 350 °C is varied from air or nitrogen to vacuum to examine the evolution of structural and optical properties of ZnO nanorods (NRs). The NR crystals of high surface
Externí odkaz:
https://doaj.org/article/71bddd87ae914929bb16e0e99aa0586f
Publikováno v:
Ceramics International. 48:25696-25704
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::395b2b0a7f6ea23b357c3ed923e9e910
https://doi.org/10.1016/j.ceramint.2022.05.177
https://doi.org/10.1016/j.ceramint.2022.05.177