- #1
HenzNett
- 5
- 0
hi guys, i came across this problem in my material science class.
can anyone help me with this problem?
thanks!
** (-> an electron)
Ec ___________________________ }-> 0.2eV, from Ec to electron Ec - Ev = 1eV
Ev ____________________________
* (-> a hole) }-> 0.1eV, from hole to Ev
--------> xOR, for a better post of the problem, please see attachment.1. what's the potential energy of the electron?
2. what's the kinetic energy of the electron?
3. what's the potential energy of the hole?
4. what's the kinetic energy of the hole?
5.the vertical axis is energy, meaning the electron energy. what direction represents increasing hole energy, up or down?
I'm guessing the potential energy for electron is 1eV, or the bandgap energy, and the kinetic energy of the electron is 0.2eV. And for 5, the increasing hole energy is probably in the upward direction. But I can't be sure about my answers, and I don't know what to do when the particle is below the Ev. Please help! Thanks again!
can anyone help me with this problem?
thanks!
** (-> an electron)
Ec ___________________________ }-> 0.2eV, from Ec to electron Ec - Ev = 1eV
Ev ____________________________
* (-> a hole) }-> 0.1eV, from hole to Ev
--------> xOR, for a better post of the problem, please see attachment.1. what's the potential energy of the electron?
2. what's the kinetic energy of the electron?
3. what's the potential energy of the hole?
4. what's the kinetic energy of the hole?
5.the vertical axis is energy, meaning the electron energy. what direction represents increasing hole energy, up or down?
I'm guessing the potential energy for electron is 1eV, or the bandgap energy, and the kinetic energy of the electron is 0.2eV. And for 5, the increasing hole energy is probably in the upward direction. But I can't be sure about my answers, and I don't know what to do when the particle is below the Ev. Please help! Thanks again!
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