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

▲ [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.