What is the magic number in eV for electrons in glass, transparent....

In summary, physicists state that it is difficult to determine the absorption and emission spectrum of solids and liquids due to the complex electron structure, resulting in smeared out emissions. This is especially challenging for materials with multiple elements, as there are usually no distinct absorption bands. However, even for materials composed of a single element, the absorption and emission bands may overlap, making it difficult to identify specific wavelengths. Overall, it is possible to find an absorption and emission spectrum for solids and liquids, but it will not have the clear lines seen in gases.
  • #1
Nicholas Ham
17
0
- liquids, and plastics for light to transmission completely through the material.
Is this eV level known in glass, liquid, and transparent plastics, for electrons to transmission light.

Physicists say that "In most solid or liquid substances, the electron structure is so complex that emissions are not confined to one wavelength, but are smeared out.
Therefore, emission features of solids and liquids are barely discernible."
So basically its like its physicists are saying its to hard to try, because the material maybe has so many different elements, so you cannot find the absorption band of a certain color of light.
But what about a material composed of one atomic element, not mixed with any others.
Could it then be possible to find the absorption, and emission spectrum of the solid material.
I am grateful for your help, anything helps, even a few words. :D
 
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  • #2
There is no magic number.
Nicholas Ham said:
So basically its like its physicists are saying its to hard to try, because the material maybe has so many different elements, so you cannot find the absorption band of a certain color of light.
Usually there are no separate absorption bands, even if the material just has one single element. The absorption bands often overlap.

You can always find an absorption and emission spectrum, but it won't have the nice lines you can see in gases.
 

1. What is the magic number in eV for electrons in glass, transparent?

The "magic number" in eV, also known as the band gap energy, for electrons in glass is approximately 5.5 eV. This refers to the minimum amount of energy required to excite an electron in the glass material to a higher energy level, making it transparent to visible light.

2. How does the band gap energy affect the transparency of glass?

The band gap energy directly impacts the transparency of glass because it determines the wavelength of light that the electrons in the material can absorb. If the energy of the incoming light is lower than the band gap energy, the electrons will not be excited and the light will pass through the glass, making it transparent.

3. Why do some materials have a different band gap energy than others?

The band gap energy of a material depends on its chemical composition and atomic structure. Different materials have different arrangements of atoms and electrons, leading to varying band gap energies. For example, glass is primarily made of silicon dioxide, which has a band gap energy of 5.5 eV.

4. Can the band gap energy of a material be changed?

Yes, the band gap energy of a material can be altered by changing its composition or structure. For example, by doping certain impurities into the glass, the band gap energy can be decreased, making it more transparent to a wider range of wavelengths. This is how tinted or colored glass is produced.

5. Is there a relationship between the band gap energy and the electrical conductivity of a material?

Yes, there is an inverse relationship between the band gap energy and the electrical conductivity of a material. Materials with lower band gap energies have higher electrical conductivity because their electrons can be easily excited to a higher energy level, making them more mobile and able to conduct electricity.

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