The 81st JSAP Autumn Meeting, 2020

Presentation information

Oral presentation

17 Nanocarbon Technology » 17.3 Layered materials

[11p-Z29-1~16] 17.3 Layered materials

Fri. Sep 11, 2020 1:30 PM - 5:45 PM Z29

Takamasa Kawanago(Tokyo Tech), Daisuke Kiriya(Osaka Pref. Univ.)

3:15 PM - 3:30 PM

[11p-Z29-7] Microfluidic Tank Engineering and Functionalization of Two Dimensional MoS2 by Nicotine

〇(DC)MuhammadShamimAl Mamun1, Yudai Tanaka1, Hiroki Waizumi1, Tsuyoshi Takaoka2, Zhipeng Wang1, Md Iftekharul Alam1, Atsushi Ando3, Tadahiro Komeda2 (1.Tohoku University, 2.IMRAM, Tohoku Univ., 3.AIST, Tsukuba, Japan)

Keywords:Nicotine, Microfluidic tank, n-doping

For the Incorporation of MoS2 into logical applications, it is obligatory to functionalize it with the chemical moieties. To avoid the effect of solvent and dopant on the electrode we set up a microfluidic tank over the MoS2 channel. Here we report the tailoring of electrical properties of mechanically exfoliated MoS2 by nicotine. Raman spectroscopy and electrical charge transport measurement revealed that nicotine imposes n-doping in MoS2. The threshold voltage forwarded left side, indicating n-type doping effect. Nicotine functionalization tailored the field effect mobility by a factor of ~ 3.6 without deteriorating the electrical properties of MoS2 devices. XPS analysis reveals the up shift of Fermi level of MoS2 towards conduction bands after nicotine functionalization.