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0 answers
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Organic Based Photocathode

What organic molecules have a relatively small work function, preferably in the visible spectrum? Polycyclic aromatic hydrocarbons are in the low UV spectrum, making it unsuitable for the photocathode ...
Evamentality's user avatar
21 votes
2 answers
644 views

Some materials emit more photoelectrons than others - why?

I've been experimenting with some materials by changing the wavelength of the incident light on the material and detecting photoelectrons, like in the diagram below: I might get a response that looks ...
Tomi's user avatar
  • 590
0 votes
2 answers
1k views

How are electrons in conjugated molecules excited? [duplicate]

I have recently started reading about colour in organic molecules and come across conjugation of pi bonds. My question is pretty short... In transition metal ions I understand colour is caused by ...
MY2K's user avatar
  • 359