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Results tagged with solid-state-physics
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user 183312
Solid-state physics studies how macroscopic properties of solids (mechanical, electrical, optical, etc.) result from their microscopic structure. It usually deals with the scale where quantum properties of the particles are substantial.
0
votes
Electron blocking layer and hole blocking layer
Yes, the description is right. In a photovoltaic cell, where the terms Hole Transport Layer (HTL) and Electron Transport Layer (ETL) are often found, material2 would be the absorbing layer, material1 …
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2
votes
Conventional explanation of basic Semiconductor & Diode behavior unconvincing
In questions 1 & 2, you seem to assume that the positive terminal connected to the n-type region of the diode in reverse bias is injecting holes into the device, while the negative one connected to th …
- 249
-1
votes
What determines the forward voltage drop for a diode?
By inverting the Shockley equation of the diode, you can easily obtain the forward voltage drop as a function of the current:
$$V_D(I) \approx \frac{kT}{e} \,ln \frac{I}{I_0}.$$
The "turn-on voltage …
- 249
3
votes
Accepted
Where does a LED use energy other than emitting light?
What your formula is actually meant to give is the emission wavelength as a function of the material bandgap:
$$\lambda \approx \frac{\rm1240\,eV\,nm}{E_{gap}}.$$
In your example, when carriers reco …
- 249