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Simply, that's because in most semiconductor materials when an electric field is applied the holes have lower mobility than that of the electrons which means the hole effective mass is larger than the electron effective mass. And you can clearly see the effect of that in semiconductor nanocrystals (or as they called sometimes "quantum dots"), the energy levels in the conduction band are further apart than what they are in the covalent band due the fact that the effective hole mass is larger ....
Good luck
Physics PhD student,
University of Toledoooo!
An electron hole does not have mass as it is a conceptual entity that represents the absence of an electron in a crystal lattice. It is essentially a way to describe the movement of electrons in a material where an electron has moved from its usual position, creating a positive charge that can behave like a particle, but it does not have actual physical mass.
Well, basically what my intuition say and how I conceptualize it is, electron hole is a mathematical model described to "ease up" the explanation of physical macroscopic or microscopic phenomenon related to solid state physics or current electricity.
Electron hole refers to the vacant space left behind in a conductor, when the valance electron leaves their original place for example consider this 3 step diagram
Consider * -> electron and ^ -> hole
1) ****^***
<-* electron moves.
2) ***^****
<-* electron moves.
3) **^*****
<-* electron moves.
As you can see, as the electron moves forward the hole moves in the opposite direction. In actual sense, the hole just moves opposite to the motion of valence electron.
(Note that valence electron doesn't mean free electron, as free electron is completely free to flow in the pool of electron inside a conductor, but valance electron is still bounded to atom)
So, the valance electron experience more force as opposed to the free electron , normally. Now obviously if there's a force on a certain object, it ought to have a mass. So according to relativistic principles to a extent, A hole has mass. Or more conceptually, you can just refer the holes indirectly to the valence electron which moves.
For mathematical formulation, visit source.
Source:
https://en.wikipedia.org/wiki/Effective_mass_%28solid-state_physics%29Add your answer:
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How the hole moves?
A hole can move due to external forces such as wind or water erosion, or from physical processes like landslides or sinkholes. The movement of a hole can also be influenced by the surrounding materials and can change over time due to weathering and environmental conditions.
What does the atomic mass of an electron represent?
The mass of an electron is atomic mass units is 5,485 799 090 70(16); the mass of the electron is not an atomic mass.
What is an electron's atomic mass number?
The electron has no atomic mass number. The mass of an electron is roughly 1/1800 of the mass of a proton or neutron.
How does the mass of a proton compared to the mass of the electron?
The proton mass is about 2,000 times greater than the electron mass.
What is the mass of 1 electron?
1/1836 of an electron is the mass of an electron. It is so small they aren't even calculated in the Atomic Mass of an element
Which has more mass electron or hole?
Holes have a slightly larger effective mass. I couldn't tell you what that is exactly, but the mass of an electron is:9.1094 * 10^-31 kg
Why you consider only electron mass but not whole mass?
For the very simple reason that a hole has nothing in it. And if there is nothing there, it has no mass - so there is nothing to consider.
Effective mass of holes?
The effective mass of a hole is a concept used in solid-state physics to describe the behavior of a hole in a crystal lattice. It represents the mass of an electron in the context of hole motion and is typically expressed as a positive value equal to the negative of the electron's mass. It is an important parameter for understanding the electrical and optical properties of semiconductors.
How the hole moves?
A hole can move due to external forces such as wind or water erosion, or from physical processes like landslides or sinkholes. The movement of a hole can also be influenced by the surrounding materials and can change over time due to weathering and environmental conditions.
What is need to study about hole curren when there is actually electron current which is involved?
actually it is the holes which lead to the movement of the electron,as electron moves to the hole's place creating a hole behind.
What does the atomic mass of an electron represent?
The mass of an electron is atomic mass units is 5,485 799 090 70(16); the mass of the electron is not an atomic mass.
What is an electron's atomic mass number?
The electron has no atomic mass number. The mass of an electron is roughly 1/1800 of the mass of a proton or neutron.
Which subatomic particle has the smallest mass alpha particle neutron electron proton?
among these Electron has the least mass....
When an electron is displaced in a semiconductor the hole thats left behind is what?
When an electron is displaced in a semiconductor, the hole that is left behind is called an electron hole. Energy can still be conducted because other electrons can and do jump to the space left by a displaced electron.
What is the mass of of an electron?
Electron has a mass of about 9.10938215 × 10−31 kg.
How does the mass of an electron compared to the mass of proton?
The proton mass is about 2,000 times greater than the electron mass.
How does the mass of electron compare to the mass of the proton?
The proton mass is about 2,000 times greater than the electron mass.
