| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.789 |
| 발표분야 |
재료(Materials) |
| 제목 |
Down- and Up-conversion properties of Eu/Ho/Yb-doped CeO2 nanoparticles prepared by spray pyrolysis |
| 초록 |
Upconversion (UC) phosphor converting NIR to visible light has been great paid attention due to its many different application including bio imaging, solar cell, and security mark. In terms of improving the security, the anti-counterfeiting materials should be difficult to replicate as well as having multi-functionality. Thus, phosphors with DC and UC emission are attractive as security materials. In this work, Eu/Ho/Yb-doped CeO2 nanoparticles were synthesized by spray pyrolysis. To achieve the DC or UC emission that one can identify with the naked eye, the activator content was optimized and the crystallite size was controlled using some flux additives. Finally, the UC/DC nanoparticles were applied to prepare the emissive pearl pigments for high security materials. |
| 저자 |
이성호1, 민병호1, 정경열1, 김대성2, 최병기3
|
| 소속 |
1공주대, 2한국세라믹기술(연), 3(주)CQV |
| 키워드 |
재료 |
| E-Mail |
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| 원문파일 |
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