photon
-6 eV
-3.5 eV
valence band
conduction band
2.5 eV*1.6x10-19 J/eV
6.63x10-34 J/Hz
__________________________ = 6 x 1014 Hz ~ 492 nm
AgBr
Dye Molecule
Photon
(red)
-5.25 eV
e-
e-
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