| 학회 | 한국화학공학회 |
| 학술대회 | 2016년 봄 (04/27 ~ 04/29, 부산 BEXCO) |
| 권호 | 22권 1호, p.131 |
| 발표분야 | 공업화학 |
| 제목 | Luminescence characteristics of TiO2: Eu particles prepared by spray pyrolysis |
| 초록 | Phosphors have gained large attention as the basic materials in various research areas such as displays, optical lasers, fluorescent sensing, bio-medical imaging, security ink, etc. The optical properties of phosphors strongly depend on host or activator materials. Titania is known as a good host for luminescent materials because of its good thermal and chemical stability as well as its high transparency in the visible wavelength region. In this work, Eu3+-doped TiO2 powders were prepared by spray pyrolysis. The luminescence properties were investigated by varying the Eu concentration and the calcination temperature. Since trivalent Eu3+ ions should be inserted into Ti4+ sites, there exists charge imbalance. Thus, monovalent metals (M+ = Li+, Na+, K+) were codoped with Eu3+ in order to improve the emission properties. As a result, we found that Li+ is best for achieving the high luminescence. Keywords: 티타니아, 형광체, 분무열분해, |
| 저자 | 조희진, 민병호, 정경열 |
| 소속 | 공주대 |
| 키워드 | 화공소재 |
| 원문파일 | 초록 보기 |
