Current, photocurrent and thermocurrent of borophene-black phosphorus heterostructures

Current, photocurrent and thermocurrent of borophene-black phosphorus heterostructures


In this paper, we calculated current–voltage characteristic curves (IV curves),Conductivity, real space charge distribution, transmission spectrum, photocurrent, and thermal current of the borophene-black phosphorus heterostructure. Our results show that the zigzag device has excellent photocurrent characteristics. The direction of photocurrent can be adjusted by changing the wavelength of incident light and adding gate voltage. The armchair device has excellent IV curve characteristics and good linear characteristics at low voltage. The armchair device also has good thermoelectric current properties. The position distribution of covalent bonds formed between atoms in this heterostructure is revealed by the real space charge distribution. Our results are significant for applying borophene-black phosphorus hetero structure in electric transport devices.

Summary for Non-Scientists

The paper focuses on a combination of two materials, borophene and black phosphorus, which together form a heterostructure—a layered material with different properties than its individual parts. The researchers are interested in how this heterostructure behaves when it’s used in electronic devices. They measured several important electrical properties:

  • Current-voltage (IV) curves: These show how the current through the material changes as the voltage is increased.
  • Conductivity: This tells us how well the material can carry an electric current.
  • Real space charge distribution: This shows where charges are located within the material.
  • Transmission spectrum: This indicates how the material affects light passing through it.
  • Photocurrent: This is the current that’s generated when light hits the material.
  • Thermal current: This is the current that comes from heat.

Their experiments showed that the zigzag configuration of the material is particularly good at generating photocurrent, which can be controlled by changing the light’s wavelength or by applying voltage. This could be useful for devices that need to respond tolight. The armchair configuration had impressive IV curves, especially at low voltages, and also showed promise for generating current from heat (thermoelectric properties). They also looked at how atoms in the material bond together, which is important for understanding how the material will behave in real-world applications. Overall, the study suggests that the borophene-black phosphorus heterostructure has a lot of potential for use in devices that transport electricity, thanks to its adjustable electrical properties and good response to light and heat.

Source :
Results in Physics
View Source

Related Posts