Optical properties of organic/inorganic nanocomposite sol-gel films containing LaPO4:Er,Yb nanocrystals
| Autor: | Sang Il Seok, Suk-In Hong, Jae-Seok Oh, Woon Jin Chung, Ha-Kyun Jung, Bok Yeop Ahn |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Materials science
Nanocomposite Organic Chemistry Composite number Mineralogy Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Inorganic Chemistry Nanocrystal Chemical engineering Organic inorganic Particle size Electrical and Electronic Engineering Physical and Theoretical Chemistry Luminescence Refractive index Spectroscopy Sol-gel |
| Zdroj: | Optical Materials. 28:374-379 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2005.02.003 |
| Popis: | The LaPO 4 :Er,Yb nanocrystals of average particle size about 5–7 nm were prepared from solution-based reaction. The nanocrystals were successfully incorporated into the sol-gel organic/inorganic hybrid matrix up to 30 wt.% without phase separation. The nanocomposite films showed strong luminescence intensity in the near infrared region around 1550 nm after heat treatment below 150 °C. The refractive indices of the composite films were adjustable by controlling both the Zr/Si ratio in the sol-gel hybrid matrices and the contents of the LaPO 4 :Er,Yb nanocrystals incorporated in the matrices. The propagation loss of the composite films was about 0.5 dB/cm, and that was prone to be increased with increasing the contents of the LaPO 4 :Er,Yb nanocrystals. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect