Table 3. Photophysical Properties of the Copolymers Measured as Thin Films Prepared from Toluene or DCB (λabsmax, Absorption Maximum; λPLmax, Emission Maximum; λPLexcmax, Maximum of the Excitation Spectrum; d, Film Thickness; Primary Maxima in Bold).
thin film | prepared from | d (nm) | λabsmax (nm) | λPLmaxa (nm) | λPLexcmaxb (nm) |
---|---|---|---|---|---|
P1 | DCB | 10 | 213, 304, 427, 604 | – | – |
P2 | DCB | 46 | 212, 286, 557, 591 | 625 | 488, 531, 571 |
P2 | DCB | 87 | 212, 286, 547, 581 | 625 | 487, 529, 570 |
P2 | toluene | 52 | 213, 336, 488, 590 | 621 | 333, 457, 486, 523, 577 |
P2 | toluene | 157 | 212, 336, 484, 584 | 623 | 336, 458, 484, 525, 589 |
P3 | DCB | 47 | 213, 337, 483 | 609 | 335, 454, 485 |
P3 | DCB | 70 | 213, 335, 479 | 604 | 331, 451, 482 |
P3 | toluene | 30 | 214, 337, 484 | 605 | 335, 454, 485 |
P3 | toluene | 111 | 213, 334, 462 | 611 | 334, 456, 485 |
SM | DCB | 43 | 206, 231, 258, 342, 423, 455 sh, 525 sh | 567 | 339, 421 |
Excitation wavelength at λabsmax;
Emission wavelength at λPLmax