| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.816 |
| 발표분야 |
재료(Materials) |
| 제목 |
Fabrication of emissive pearl pigment using Gd2O3:Tb nanoparticles for anti-counterfeiting application |
| 초록 |
Pearl pigments have been used in cosmetics, automotive metallic coating, and different appliances with sparkling properties. The unique sparkling and color properties of pearl pigments depend on the viewing angle positions. So, the pearl pigment itself can be used as a security material. The anti-counterfeiting technology requires multi-functional materials which are difficult to duplicate. Given this, it is necessary for pearl pigments to have functions other than their optical properties. To prepare more advanced security material, in this work, the pearl pigment was coated with green emissive nanoparticles (Gd2O3:Tb). Nano-sized Gd2O3:Tb particles were synthesized by spray pyrolysis, and its emission was improved by controlling the synthetic conditions including activator concentration, calcination environment, and flux content. The resulting Gd2O3:Tb particles showed high intensive green emission and average particles size of less than 200 nm. Finally, the pearl pigments coated with Gd2O3:Tb nanoparticles were confirmed to have good green emission under UV illumination. |
| 저자 |
윤성혜1, 민병호1, 정경열1, 김대성2, 조금성3, 강광중3, 최병기3
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| 소속 |
1공주대, 2한국세라믹기술(연), 3(주)CQV |
| 키워드 |
재료 |
| E-Mail |
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| 원문파일 |
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