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Melt Blown Fiber-Assisted Solvent-Free Device Fabrication at Low-Temperature.


ABSTRACT: In this paper, we propose a solvent-free device fabrication method using a melt-blown (MB) fiber to minimize potential chemical and thermal damages to transition-metal-dichalcogenides (TMDCs)-based semiconductor channel. The fabrication process is composed of three steps; (1) MB fibers alignment as a shadow mask, (2) metal deposition, and (3) lifting-up MB fibers. The resulting WSe2-based p-type metal-oxide-semiconductor (PMOS) device shows an ON/OFF current ratio of ~2 × 105 (ON current of ~-40 µA) and a remarkable linear hole mobility of ~205 cm2/V·s at a drain voltage of -0.1 V. These results can be a strong evidence supporting that this MB fiber-assisted device fabrication can effectively suppress materials damage by minimizing chemical and thermal exposures. Followed by an MoS2-based n-type MOS (NMOS) device demonstration, a complementary MOS (CMOS) inverter circuit application was successfully implemented, consisted of an MoS2 NMOS and a WSe2 PMOS as a load and a driver transistor, respectively. This MB fiber-based device fabrication can be a promising method for future electronics based on chemically reactive or thermally vulnerable materials.

SUBMITTER: Lee M 

PROVIDER: S-EPMC7763187 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Melt Blown Fiber-Assisted Solvent-Free Device Fabrication at Low-Temperature.

Lee Minjong M   Kang Joohoon J   Lee Young Tack YT  

Micromachines 20201210 12


In this paper, we propose a solvent-free device fabrication method using a melt-blown (MB) fiber to minimize potential chemical and thermal damages to transition-metal-dichalcogenides (TMDCs)-based semiconductor channel. The fabrication process is composed of three steps; (1) MB fibers alignment as a shadow mask, (2) metal deposition, and (3) lifting-up MB fibers. The resulting WSe<sub>2</sub>-based p-type metal-oxide-semiconductor (PMOS) device shows an ON/OFF current ratio of ~2 × 10<sup>5</su  ...[more]

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