Nanoscale electronics and impulse force

In summary, in nanoscale electronics, electrons can be treated like billiard balls and a simple device, the ballistic electron transistor, is currently being studied. The device involves an electron colliding with a rigid wall and green bars representing electrodes that can apply a vertical force of 8.90·10-13 N to the electrons. To obtain a deflection angle of 136.°, an initial electron velocity of vx = 1.30·105 m/s and vy = 0, and a wall angle of 45.0°, the force from the electrodes needs to be applied for a certain amount of time. This can be calculated using the impulse formula, as seen in a similar problem involving a baseball being pitched and
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In nanoscale electronics, electrons can be treated like billiard balls. The figure shows a simple device currently under study in which an electron elastically collides with a rigid wall (a ballistic electron transistor). The green bars represent electrodes that can apply a vertical force of 8.90·10-13 N to the electrons. If an electron initially has velocity components vx = 1.30·105 m/s and vy = 0 and the wall is at 45.0°, the deflection angle θD is 90.0°. How long does the vertical force from the electrodes need to be applied to obtain a deflection angle of 136.°?


Δp=J(impulse force)=F(average)*Δt

We had a similar problem in class where a baseball was pitched over home plate at 5 below the horizontal with a velocity of 40.23m/s and than hit back at 35° above the horizontal with a velocity of 49.17 m/s. the baseball weighed 0.145 kg and the bat made contact for1.2 ms. We solved this one by
Δvx=(49.17 m/s)(cos35°)-(40.23 m/s)(cos185°)=80.35 m/s
Δvy=(49.17 m/s)(sin 35°)-(40.23 m/s)(sin185°)=31.71 m/s
√((80.35 m/s)^2+(31.71 m/s)^2)=86.38 m/s
Δp=mΔv=(0.145 kg)(86.38 m/s)=12.5 kg m/s
and the we used impulse formula to solve for average force:
F(average)=Δp/Δt=(12.5 kg m/s)/0.0012s=10.4 kN

I understand that we had to break up the velocity vectors in order to solve for the change in velocity vectors, because that change will give us change in momentum. However I am really hung up on this problem when it hits a 45° wall. Would the the force applied by the electrodes be the impulse force or average force? If anyone could help me through this that would be great! Thanks!
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Here is a picture as well.


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  • #3
Does anyone have any idea?

1. What is nanoscale electronics?

Nanoscale electronics is a branch of science and technology that deals with the design, fabrication, and application of electronic devices and systems at a scale of nanometers (one billionth of a meter) or smaller. This field explores the use of materials and components at the nanoscale to create faster, smaller, and more efficient electronic devices.

2. How does nanoscale electronics differ from traditional electronics?

Nanoscale electronics differs from traditional electronics in terms of size and materials used. Traditional electronics use materials such as silicon and metal in their components, while nanoscale electronics utilize nanomaterials such as carbon nanotubes, graphene, and quantum dots. Additionally, nanoscale electronics are much smaller in size and can exhibit unique properties due to their nanoscale dimensions.

3. What is impulse force in relation to nanoscale electronics?

Impulse force is the change in momentum of an object over a specific period of time. In nanoscale electronics, impulse force is used to control the movement of tiny particles or molecules to create electronic devices. This force is often applied using techniques such as laser pulses, electric fields, or magnetic fields to manipulate the behavior of nanoscale materials.

4. What are some potential applications of nanoscale electronics and impulse force?

Nanoscale electronics and impulse force have a wide range of potential applications in various fields such as medicine, energy, and electronics. Some examples include nanosensors for detecting diseases, nanomotors for drug delivery, and nanogenerators for harvesting energy. In electronics, nanoscale devices could lead to faster and more efficient computers, flexible and transparent displays, and high-capacity data storage.

5. What are the current challenges in the field of nanoscale electronics and impulse force?

One of the main challenges in this field is the high cost of fabrication and the difficulty in scaling up production of nanoscale electronic devices. Another challenge is the potential health and environmental risks posed by nanomaterials. Additionally, controlling and manipulating nanoscale materials with precision and reproducibility is still a major challenge in this field.

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