The semiconducting α′-borophenenanoribbon (α′-BNR) due to its incredible properties such as high stability and great mobility of carriers demonstrates high-efficiency in thermoelectric devices.
These properties enable us to produce the spin current by a temperature gradient with lower energy consumption technology.
In this research, the spin-dependent Seebeck effects are studied in a zigzag α′-borophene nanoribbon with two leads magnetized by ferromagnetic (FM) insulators. The thermoelectric calculations are performed for a α′-BNR FM/Normal/FM junction using the tight-binding (TB) formalism in combination with thenon-equilibrium Green's function method (NEGF). A pure spin-dependent current due to the breaking of the electron-hole symmetry is induced in the system by a temperature gradient so that it can act as a spin-Seebeck diode. Moreover, the negative differential spin-Seebeck effect can be observed in this device due to the compensation of thermal spin in the spin-dependent currents. Finally, we have studied the effect of temperature on the charge and spin power factor sin α′-BNR. A significant decline in power factor is primarily arises from a reduction in the magnitude of thermopower near the Fermi level. Our findings demonstrate that the α′-BNR has a higher power factor compared to its rivals e.g., graphene and silicene. This is attributed to the semiconducting nature and high asymmetry between electrons and holes in the α′-BNR. The exceptional features of α′-BNR makes it a very suitable choice for using in thermoelectric devices.
Researchers are exploring a new materialcalled α′-borophene nanoribbon (α′-BNR), which has remarkable properties making it highly efficient for use in thermoelectric devices—gadgets that convert heat into electricity.
Here's what they discovered:
