| 학회 |
한국공업화학회 |
| 학술대회 |
2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU)) |
| 권호 |
20권 2호 |
| 발표분야 |
감성형 스마트 광제어 소재 및 소자 |
| 제목 |
Thermochromic VO2 Thin-Films Fabricated From Colloidal VOx Nanocrystals |
| 초록 |
We demonstrate thermally switchable VO2 thin-films fabricated using solution processable colloidal nanocrystals(NCs). Vanadium oxide (VOx) NCs are synthesized throught a non-hydrolytic reaction and deposited from stable colloidal dispersion to form NC thin-films. Rapid thermal annealing transforms the VOx NC thin-film into monoclinic VO2 thin-films showing reversible metal-insulator phase transformation. Introduction of tungsten dopants into the colloidal VOx NCs enables still sharp phase transtion of the VO2 thin-films to be tuned to lower temperatures as the doping level increases. We fabricate "smart", diffrentially-doped multilayered VO2 films to program the vertical structures with temperature and demonstrate that nanocrystal-based nanoimprinting can be employed to pattern multilayered subwavelength nanostructures that exhibit plasmonic dipolar responses tunable with a temperature change. |
| 저자 |
백태종 |
| 소속 |
중앙대 |
| 키워드 |
phase change material; vanadium dioxide; smart window
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| E-Mail |
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