Wan Sik Hwang
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Explore the profile of Wan Sik Hwang including associated specialties, affiliations and a list of published articles.
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Articles
26
Citations
142
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Recent Articles
1.
Park I, Seo D, Baek J, Cho B, Hwang W, Kim M
Nanotechnology
. 2024 Jul;
35(44).
PMID: 39082380
Gallium oxide (GaO) is attracting attention as a next-generation semiconductor material for power device because it has a wide energy band gap and high breakdown electric field. We deposited a...
2.
Seo D, Kang S, Ryou H, Shin M, Hwang W
ACS Omega
. 2023 Nov;
8(44):41495-41501.
PMID: 37970006
A liquid Ga-based synaptic device with two-terminal electrodes is demonstrated in NaOH solutions at 50 °C. The proposed electrochemical redox device using the liquid Ga electrode in the NaOH solution...
3.
Kim S, Kim M, Kim J, Hwang W
Nanomaterials (Basel)
. 2023 Apr;
13(7).
PMID: 37049293
The electrical and optoelectronic performance of semiconductor devices are mainly affected by the presence of defects or crystal imperfections in the semiconductor. Oxygen vacancies are one of the most common...
4.
Seo D, Ryou H, Hong S, Seo J, Shin M, Hwang W
ACS Omega
. 2022 Jun;
7(23):19872-19878.
PMID: 35721935
An ionic device using a liquid Ga electrode in a 1 M NaOH solution is proposed to generate artificial neural spike signals. The oxidation and reduction at the liquid Ga...
5.
Kim S, Ryou H, Lee I, Shin M, Cho B, Hwang W
RSC Adv
. 2022 Apr;
11(13):7338-7346.
PMID: 35423267
Aluminum (Al)-doped beta-phase gallium oxide (β-GaO) nanostructures with different Al concentrations (0 to 3.2 at%) are synthesized using a hydrothermal method. The single phase of the β-GaO is maintained without...
6.
Yi G, Jeon S, Kwon Y, Park J, Nguyen D, Suchand Sandeep C, et al.
Nanoscale
. 2021 Dec;
14(1):175-186.
PMID: 34904989
Third harmonic generation (THG) has proven its value in surface and interface characterization, high-contrast bio-imaging, and sub-wavelength light manipulation. Although THG is observed widely in general solid and liquid substances,...
7.
Ryou H, Kim S, Shin M, Cho J, Hwang W
Sensors (Basel)
. 2021 Jan;
21(2).
PMID: 33429874
A fast-response colorimetric ultraviolet-C (UVC) sensor was demonstrated using a gallium oxide (GaO) photocatalyst with small amounts of triethanolamine (TEOA) in methylene blue (MB) solutions and a conventional RGB photodetector....
8.
Jeon S, Han P, Jeong J, Hwang W, Hong S
Nanomaterials (Basel)
. 2020 Dec;
11(1).
PMID: 33375535
Graphene nanoribbons are a greatly intriguing form of nanomaterials owing to their unique properties that overcome the limitations associated with a zero bandgap of two-dimensional graphene at room temperature. Thus,...
9.
Kim M, Pak K, Choi J, Lee T, Hwang W, Im S, et al.
ACS Appl Mater Interfaces
. 2019 Nov;
11(47):44513-44520.
PMID: 31725253
A one-step synthesis method is introduced and used to form an ultrathin, homogeneous organic-inorganic hybrid dielectric film with a high dielectric constant (high-), based on initiated chemical vapor deposition. The...
10.
Bong J, Kim S, Jeong C, Chang K, Hwang W, Cho B
J Nanosci Nanotechnol
. 2019 Apr;
19(10):6481-6486.
PMID: 31026981
We analyze the interface trap states generated by the self-heating effect in flexible single-crystalline Si nanomembrane (sc-Si NM) transistors. Despite the excellent device performance (: ~61 mV/dec, : ~10, Nit:...