Fluorescence Spectrometry
461
Table 2 Details of absorption and emission bands of different LCMs
Liquid crystal materials
Absorption (nm)
Emission (nm)
References
5 CB
279
≈330
[46]
8 CB
280–320
336
[35, 47]
8OCB
280–333
355
[47]
E7
281
≈330
[46]
7OBA
255 (π −π ∗ )
≈371
[48, 49]
HAT n (Triphenylene-based
discotics)
≈300 (π −π ∗ )
380
[50]
Triphenylenepentaalkynylbenzene
dyads
≈280, 337
≈446, 470
[51]
Perylene tetraesters
245, 265, 291, 419, 446
493, 522, 567
[52]
Phenazine Fused
Triphenylene
257, 290, 314, 352, 476
620–660
[53]
4 -(octyloxy)-[1,1 -
biphenyl]-4-yl
4-(heptan-2-yloxy)benzoate
318 (π −π ∗ ) and 369 (n−π ∗ ) 355, 405, 434
[36, 39]
Chiral Bisoxadiazole
Derivatives
360
400, 470
[54]
Tris(N-salicylideneaniline) s
(TSANs) (R = 10, 12)
≈324 (π −π ∗ ), 402 (n−π ∗ ) ≈455
[7, 31, 55]
9C n -ester-TCS and
9C n -amide-TCS
325 and 357
432 and 496
[56]
Nitro-substituted
pyrrolopyrrole derivative
300, 372, 396, 399 and 455
460–592
[57]
Fig. 11 Fluorescence spectra in different soft-nano composites. Adapted with permission from
Refs. [30, 32, 35, 36, 41, 45] copyright, 2014, 2009, 2020, 2018, 2016, 2020, RSC, AIP, Elsevier,
ACS