Oligothiophenes, electroluminescent

M. Zavelani-Rossi, G. Lanzani, S. de Silvestri, M. Anni, G. GigU, R. Cingolani, G. Barbarella and L. Favaretto, Single-mode tunable organic laser based on an electroluminescent oligothiophene, App/. Phys. Lett., 79,4082-4084 (2001). 

F. Geiger, M. Stoldt, H. Schweizer, P. Bauerle, and E. Umbach, Electroluminescence from oligothiophene-based light-emitting devices, Adv. Mater., 5 922-925, 1993. 

K. Uchiyama, H. Akimichi, S. Hotta, H. Noge, and H. Sakaki, Electroluminescence from thin film of a semiconducting oligothiophene deposited in ultrahigh vacuum, Synth. Met., 63 57-59,1994. 

T. Noda, H. Ogawa, N. Noma, and Y. Shirota, A novel family of amorphous molecular materials containing an oligothiophene moiety as color-tunable emitting materials for organic electroluminescent devices, Adv. Mater., 9 720-722, 1997. 

V-shaped oligothiophene-S,S-dioxides with high photo and electroluminescence performance... 

The molecular structure of selected V-shaped oligothiophenes is shown in Scheme 5, while the corresponding electro-optical characteristics are reported in Table 2. The luminance vs. voltage plots and the electroluminescence spectra of the devices fabricated with 9,10 and 11 as the active materials, are shown in Figure 4. 

Hong, Y., L.L. Miller, D.D. Graf, K.R. Mann, and B. Zinger. 1996. Electroluminescence from a polyester containing oligothiophenes in the main chain, enhanced by a diimide electron transport agent. Synth Met 82 189-191. 

Barbarella, G., L. Favaretto, G. Sotgiu, M. Zambianchi, V. Fattori, M. Cocchi, F. Cacialli, G. Gigli, and R. Cingolani. 1999. Modified oligothiophenes with high photo- and electroluminescence efficiencies. Adv Mater 11 1375-1379. 

Electroluminescence from green to near-IR has been demonstrated for oligothiophene-5,5-dioxides [63]. Figure 4.8 shows the electroluminescence spectra of compounds 3-5 (whose molecular shuctures are depicted in Scheme 4.2), 8 and 9 (whose molecular structures are depicted in Figure 4.6) and 11, whose molecular structure is shown in Figure 4.8, The electro-optical characteristics of all compounds are reported in Table 4.12. 

---