| 초록 |
Porphyrin derivatives are widely used materials in the field of optoelectronic devices because they have excellent heat and electrical transfer properties and optical properties such as triplet annihilation. When the molecular structure of the porphyrin contains a heavy metal with a high atomic number, intersystem crossing (ISC) is actively performed, thereby activating phosphorescence emission by triplet state. In this study, the photoluminescence (PL) properties of each were compared and analyzed using one-dimensional (1D) crystal structures grown by two different methods. The ratio of fluorescence and phosphorescence in PL was different depending on the growth method, and it was possible to annihilate either one. In a crystal structure, the optical waveguide phenomenon in which generated PL is propagated in a specific direction occurs well. The crystals grown using a porphyrin derivative which has phosphorescent, it was observed that the full width at half maximum (FWHM) of PL changes with propagated distance. An advanced optoelectronic device can be realized by using a change in the ratio of fluorescence and phosphorescence and selective PL emission by an optical waveguide. |
