  Tuning two dimensional nanomaterial's structural and electronic properties
has facilitated the new research paradigm in electronic device applications. In
this work, the first principles density functional theory based methods are
used to investigate the structural, electronic, and transport properties of an
orthorhombic diboron dinitride based polymorph. Interestingly, it depicts a low
band gap semiconducting nature with a robust anisotropic behaviour compared to
the hexagonal boron nitride, which is an insulator and isotropic. We can also
tune the structural and electronic properties of the semiconducting B2N2 based
structure through an external inplane mechanical strain. Further, by employing
the Landauer Buttiker approach, the electronic transmission function, and
electric current calculations reveal that the diboron dinitride based polymorph
shows a robust direction dependent anisotropy of the quantum transport
properties. We have demonstrated the direction dependence of the electric
current in two perpendicular directions, where we have observed an electric
current ratio of around 61.75 at 0.8 V. All these findings, such as directional
dependence anisotropy in transmission function, current voltage
characteristics, and bandgap tunning, suggest that the applicability of such
B2N2 based monolayer can be promising for futuristic electronic device
applications.
