| 초록 |
We synthesized a series of copolymers (CP0-CP5) containing different compositions of N-vinylcarbazole and newly designed vinyl monomer with covalently linked green-phosphorescent Ir(III) complex. Mw and PDI of the copolymers were in a range of 6,000~17,000g/mol and 1.4 ~ 2.8, respectively. The copolymers showed highly efficient green phosphorescence attributed to the excited state energy transfer from carbazole to Ir(III) complex which is, in turn, combined with interligand energy transfer (ILET). Energy transfer characteristics involved in this system were investigated in terms of the comonomer ratio-dependent absorption and photoluminescence spectral changes. |
