| 초록 |
Dithieno[3,2-b:2',3'-d]thiophene (DTT) has emerged as an important building block in the synthesis of a wide variety of optoelectronic materials. Thus DTT derivatives have been used in photo- and electroluminescent devices, two-photon absorption, non-linear optical chromophores, and photochromic materials. Here, we report the synthesis of two new DTT containing conjugated polymers such as poly(dithieno[3,2-b:2',3'-d]thiophenevinylene-alt-9,9-diethylhexyl-2,7-fluorenediylvinylene) (FLU-DTT) and poly(dithieno[3,2-b:2',3'-d]thiophenevinylene-alt-2-methoxy-5-(2-ethylhexyloxy)-p-phenylenevinylene) (MEH-DTT). The photoluminescence (PL) spectra of FLU-DTT and MEH-DDT showed the emission maxima at 528 and 578 nm, respectively as solution states. Interestingly, MEH-DDT showed far more red-shifted electroluminescene (EL) emission at about 650 nm. Detailed synthetic routes and light emitting properties of DTT containing conjugated polymers will be discussed. |
