For a quick : Start with the review "Electronic Processes in Organic Semiconductors" by Köhler & Bässler (Wiley, 2015) – also available in PDF form through institutional access.
I cannot directly send or attach files, but you can find high-quality on the Physics of Organic Semiconductors through these legitimate sources: physics of organic semiconductors pdf
In inorganic semiconductors like silicon, atoms bond covalently into a rigid lattice, forming delocalized energy bands. Electrons occupy valence and conduction bands separated by a bandgap. In organic semiconductors, the physics is quite different. They consist of conjugated molecules or polymers—long chains of carbon atoms with alternating single and double bonds. This π-conjugation allows electrons to delocalize along the molecule, creating molecular orbitals: the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO). The HOMO–LUMO gap is the organic analog of the bandgap. For a quick : Start with the review
Organic Semiconductors: Exploring Principles and Advancements (2024) : A very recent review available on ResearchGate In organic semiconductors, the physics is quite different
: In highly crystalline organic solids (like rubrene), charges can move in delocalized bands, similar to silicon, though this is rare and sensitive to temperature. : Charge carrier mobility in organics is generally low ( 10 to the negative 6 power 10 to the first power cm²/Vs) compared to silicon ( tilde 1000 ResearchGate 🕯️ Optical and Optoelectronic Properties