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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-557 |
| Subject |
Synthesis of perylene-based wavelength shifting dyes and their application to a light converting agricultural film |
| Authors |
Jin Woong Namgoong, Tae Gyu Hwang, Jae Pil Kim*
Department of materials science and engineering, Seoul National University, Korea
|
| Abstract |
A method that adjusts the light condition of photosynthesis has been studied. This approach involves manipulation of sunlight radiation by wavelength shifting for improved photosynthesis efficiency. Most plants mainly use blue light (400–500 nm) and red light (600–700 nm) for photosynthesis. Therefore, spectral conversion of green light in solar radiation into red light can enhance the photosynthesis efficiency of plants. For this, some studies using light converting films with inorganic fluorescent materials or fluorescent pigments have been conducted. The inorganic substances and pigments, however, easily migrate within the film due to their low compatibility with polymers, and this leads to a decline of optical properties of the light conversion films. To solve this issue, we synthesized soluble perylene-based wavelength shifting dyes presenting high stability and spectral converting efficiency within a polymer film. The synthesized dyes were blended with an acrylic polymer binder, and the mixture then coated on poly ethylene films, followed by heat treatment. As a result, the prepared fluorescent film showed high spectral converting efficiency without the migration of dye molecules and degradation of optical properties. Furthermore, the result of cultivation of lettuce and kale displayed an improvement in growth. In conclusion, this study demonstrates that the bulky aryl substituted perylene dye is efficient as a wavelength shifting material and provides suitable miscibility to poly ethylene based agricultural films, and confirms that the light converting film was effective in increasing productivity of the chosen plants. |
| E-mail |
devilhunter@snu.ac.kr |
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121st General Meeting of the KCS