| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔) |
| 권호 | 13권 1호, p.922 |
| 발표분야 | 재료 |
| 제목 | Modified spontaneous emission from rare earth ion doped titania photonic crystals |
| 초록 | Rare earth ion doped semiconductor exhibits sharp photoluminescence (PL) originated from 4f shell transition at visible and IR region and these materials have advantages in light emitting diodes displays, lasers and optic amplifiers. Emission of light generated by rare earth ion doped semiconductor can be modified in photonic crystals since the refractive index varies depending on the length scale of the order of the wavelength. By using rare earth ion doped semiconductor as photonic band gap materials, controlling spontaneously emitted light could be achieved. In this presentation, we fabricate Er3+ or Eu3+ doped titania inverse opals by infiltrating opals with chemical solutions containing titanium precursors and rare earth ions. We also observe modified photoluminescence of rare earth doped titania inverse opals by changing length scales of the photonic crystals. Moreover, it will be described that rare earth ion doped titania photonic crystals have the potentials for optical devices. |
| 저자 | 은태희, 김세훈, 양승만 |
| 소속 | 한국과학기술원 / 광자유체집적소자창의연구단 |
| 키워드 | titania; emission; photonic crystal |
| 원문파일 | 초록 보기 |
