SL 23

Bistable Optical Recording and Fluorescence Patterning in A highly luminescent polymer film

S.Y. Park

Molecular Photonics Laboratory, Department of Materials Science and Engineering, Seoul National University, San 56-1, Shillim-dong, Kwanak-gu, Seoul, 151-744, Korea (,

We have developed several different methods for the highly efficient fluorescence patterning and reversible optical recording in a functional polymer film. One approach utilizes the two-color fluorescence changes accompanying the photochemical control of the excited-state intramolecular proton transfer in the novel functional polymer film [1, 2]. In the other approach, we have investigated the strongly fluorescent polymer with built-in photochromic switches [3-5]. Novel nanofabrication processes combining both the bottom-up and top-down principles for the fluorescent and nano-patterned polymer film has also been demonstrated very recently[6]. In this special lecture, our most important contributions to the fluorescence patterning and optical recording will be discussed in addition to the broad overview of our approaches published so far [1-6].

1. S. Kim and S. Y. Park, Adv. Mat., 15, 1341 (2003).

2. S. Park, S. Kim, J. Seo, and S. Y. Park, Macromolecules, 38, 4557 (2005).

3. S. J. Lim, B. K. An, S. D. Jung, M. A. Chung, and S. Y. Park, Angew. Chem. Int. Ed., 43, 6346 (2004).

4. S. J. Lim, B. K. An, and S. Y. Park, Macromolecules, 38, 6236 (2005).

5. S. J. Lim, J. Seo, and S. Y. Park, J. Am. Chem. Soc., 128, 14542 (2006).

6. B.-K. An, S.-K. Kwon and S. Y. Park, Angew. Chem. Int. Ed., 46, 1978 (2007).