P3HT
Poly(3-hexylthiophene)
Glass Transition (Tg)
~12 °C
Melting Point (Tm)
~230 °C
Density
1.10 g/cm³
CAS Number
104934-50-1
Recycling Code
None
Category
Functional & Smart
Repeat Unit
–[C₄H₂S(C₆H₁₃)]ₙ–
The repeating unit is the smallest structural fragment whose repetition builds the whole chain. Subscripts show the relative share of each unit in copolymers.
Key Properties
Hexyl side chains make it solution-processable; regioregularity controls π-stacking and hence hole mobility; the benchmark donor in organic photovoltaics.
Applications
Organic solar cells, OFET transistors, printed electronics.