| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔) |
| 권호 | 13권 1호, p.1008 |
| 발표분야 | 재료 |
| 제목 | Fabrication of Inverse Opals with Rutile Phase of Titania |
| 초록 | Inverse opal structure of rutile phase titania has been largely highlighted as ideal and perfect structure in photonic crystal research field since rutile has good physical properties such as thermal stability, high refractive index and low absorption in the visible region. Especially its high refractive index (＞2.8) can bring a full band gap in the visible light range. Titania inverse opals fabricated by solution infiltration need further heat treatment at high temperature to induce phase transformation from amorphous to rutile, their macroporous structures could not be maintained. In here we fabricate nano-sized titania as rutile phase using titanium tetrachloride as precursors under acidic condition. Nanoparticles are infiltrated into colloidal crystals formed with monodispersed polystyrene spheres using capillary force. After removing PS, refractive indexes of inverse opal are measured by ellipsomerty. These inverse opals are definitely a promising photonic crystal for controlling the light compared to the other photonic crystals made with low refractive index materials. |
| 저자 | 김세훈, 은태희, 양승만 |
| 소속 | 한국과학기술원 생명화학공학과 / 광자유체집적소자 창의연구단 |
| 키워드 | rutile titania; inverse opal |
| 원문파일 | 초록 보기 |
