Question

Which of the following property makes carbon nanotubes an excellent material for nanoelectronics?

• A. High aspect ratio
• B. High melting point
• C. High specific heat capacity
• D. Ballistic electron transport

Hint:

Ballistic electron transport allows for high-speed, low-resistance current flow in carbon nanotubes, which is ideal for nanoelectronic applications.

Answer 1

The Correct Option is D

Carbon nanotubes (CNTs) are known for their unique electrical, mechanical, and thermal properties, making them ideal for applications in nanoelectronics. One of the key properties of CNTs that is particularly advantageous in nanoelectronics is ballistic electron transport. In this phenomenon, electrons move through the nanotube without scattering, allowing for extremely fast electron mobility, which is critical in nanoelectronic devices.
- High aspect ratio: While the aspect ratio of CNTs (length to diameter) is large, it is not the defining characteristic for their use in nanoelectronics.
- High melting point: Although CNTs have a high melting point, it is not the primary reason they are favored in nanoelectronics.
- High specific heat capacity: This property refers to the amount of heat a material can store, which is not the most significant factor in the context of their use in nanoelectronics.
Thus, the correct answer is ballistic electron transport, as it enables high-speed electrical conductivity in nanoscale devices.