| 학회 | 한국재료학회 |
| 학술대회 | 2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 | 27권 2호 |
| 발표분야 | F. 광기능/디스플레이 재료 분과 |
| 제목 | Stability enhancement of organic-coated SrAl2O4 persistent phosphor depending on the coating agent and method |
| 초록 | Since the invention of persistent phosphor, it has been applied in various fields and still researched to expand the application field. To date, organizations in many countries have tried persistent phosphors to apply in the field of safety facilities such as road striping and signs to improve visibility. However, the road facilities were usually exposed to harsh conditions such as pouring and wearing. Therefore, the surface coating and modifications of the phosphor are researched to improve the stability and adhesivity for binder material. Herein, we report the comparison of wet and plasma coating method for surface modification. Three kinds of silane functional materials for coating agent with different characteristic was chosen. From the results, we could confirm that the uniformity of the coating is better in the case of the plasma process. And the plasma-coated phosphor with the coating agent which has a long carbon chain maintains the luminescence intensity over 50% after soaking in water for 48h, despite the pristine phosphor almost loses the luminescence characteristics occurring the phase transition. We believe these results can contribute to overcome limitations of phosphors in the practical application. Acknowledgement This research was supported by a grant(19CTAP-C152269-01) from Technology Advancement Research Program (TARP) funded by Ministry of Land, Infrastructure and Transport of Korean government |
| 저자 | 유정현, 권석빈, 유호찬, 윤대호 |
| 소속 | 성균관대 |
| 키워드 | Organic coating; plasma coating; persistent phosphor; stability enhancement |
