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.