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Plasma-Doped Si Nanosheets for Transistor and <i>p-n</i> Junction Application
Lee, Jaejun,Kwon, Juyoung,Seo, Dongjea,Na, Jukwan,Park, Sangwon,Lee, Hyo-Jung,Lee, Seung-Woo,Lee, Ki-Young,Park, Tae-Eon,Choi, Heon-Jin American Chemical Society 2019 ACS APPLIED MATERIALS & INTERFACES Vol.11 No.45
<P>Since the discovery of graphene, layered transition metal dichalcogenides (TMDs) have been considered promising materials for applications in various fields because of their fascinating structural features and physical properties. Doping in semiconducting TMDs is essential for their practical application. In this regard, two-dimensional (2D) Si materials have emerged as a key component of 2D electronic, optics, sensing, and spintronic devices because of their complementary metal-oxide-semiconductor (CMOS) compatibility, high-quality oxide formation, moderated bandgap, and well-established doping techniques. Here, we report the tuning of the electronic properties of Si nanosheets (NSs) using a plasma-doping technique. Using this doping process, we fabricated <I>p</I>-<I>n</I> homojunction diodes and transistors with Si NSs. The estimated high ON/OFF ratio of ∼10<SUP>6</SUP> and field-effect hole mobility of 329 cm<SUP>2</SUP> V<SUP>-1</SUP> s<SUP>-1</SUP> suggest a high crystal quality of the Si NSs. We also demonstrate vertically stacked heterostructured <I>p</I>-<I>n</I> junction diodes with MoS<SUB>2</SUB>, which exhibit rectifying properties and excellent light response.</P> [FIG OMISSION]</BR>
Lee, Kangwook,Ryu, Juyoung,Son, Chang-Gue,Cho, Jung-Hyo,Yoo, Hwa-Seung,Lee, Jonghoon,Kim, Yoon-sik,Lee, Namhun KOREAN PHARMACOPUNCTURE INSTITUTE 2016 Journal of pharmacopuncture Vol.19 No.3
Lung cancer has a high mortality rate and is often diagnosed at the metastatic stage. Gefitinib is a targeted molecular therapeutic drug used to treat patients with non-small-cell lung cancer (NSCLC). Korean herbal medicines may also have therapeutic efficacy against lung cancer, reduce the side effects associated with chemotherapy, and improve patient quality of life (QOL). This case report describes the effects of a Korean herbal medicine regimen combined with gefitinib in a patient with NSCLC and bone metastasis. The Korean herbal medicine regimen included woohwanggeosa-dan, hwanggibujeong-dan and geonchilgyebok-jeong. The computed tomography (CT) findings showed that following combination treatment, the size of the tumor was markedly decreased without serious adverse events. Moreover, the Eastern Cooperative Oncology Group (ECOG) performance status was improved and cancer-related pain was decreased. These results suggest that a combination of Korean herbal medicines and gefitinib may be an effective therapeutic option for patients with advanced NSCLC and bone metastasis. Further studies are needed to examine the mechanism and the clinical efficacy of Korean herbal medicines against NSCLC.