Table 1 The assignment of the typical Raman spectra peaks for P3HT

From: Highly anisotropic P3HT films with enhanced thermoelectric performance via organic small molecule epitaxy

Raman bands(cm−1)

Assignment

~1445

Symmetric C═C stretch mode

~1381

C–C intraring stretch mode

~1208

Inter-ring C–C stretch mode

~1180

C-H bending mode with C–C inter-ring stretch mode

~1090

C–H bending

~1000

Stretching deformation between carbon and carbon of the hexyl substituent

~728

C–S–C deformation mode

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