| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Broadband Antireflection Coating at near Infra-red Wavelengths by Breath Figure |
| 초록 | We prepared porous thin film by spin-coating of cellulose acetate butyrate (CAB) solution in tetrahydrofuran under humid environment. Due to evaporative cooling during spin coating, condensed water droplets were formed by a breath figure on CAB solution and these developed a porous structure after complete drying. By varying solution concentration and rotating speeds, two distinct morphologies were generated: the top and the bottom layers with higher and lower porosities, respectively. We found that the two-layer porous film coated on glass exhibited low reflectance of less than 1% at near Infra-red regime (NIR) corresponding to wavelengths between 900 and 2200 nm. Since porous structure was very uniform on a large area, the film could be easily employed for broadband antireflection coating at NIR. |
| 저자 | 박민수, 김진곤 |
| 소속 | 포항공과대 |
| 키워드 | |
