| 학회 | 한국화학공학회 |
| 학술대회 | 2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 | 19권 1호, p.86 |
| 발표분야 | 공업화학 |
| 제목 | Prepration of CuInS2/ZnS/Silica Nanocrystals for Application on white LED |
| 초록 | In this study, we synthesized the non-toxic and high efficient silica coated CuInS2/ZnS semiconductor nanocrystals(NCs), and applied the white LED phosphor. The quantum yield of CuInS2/ZnS NCs was over 60%, and the emission wavelength was tuned from 546 to 660nm by adjusting Zn ratio. The silica shell was formed by using surfactant templated silica coating method. The as-prepared hydrophobic CuInS2/ZnS NCs were transferred to the aqueous phase using cetyltrimethylammonium bromide (CTAB), and then TEOS was added to lead the hydrolysis reaction for shell growth. The detailed structural and optical properties of silica coated CuInS2/ZnS NCs were investigated by XRD, TEM, UV/vis, and PL. The obtained CuInS2/ZnS/silica NCs were arrayed on GaN LED surface by Layer-by-Layer (LbL) self-assembly method based on electrostatic attraction. The fabricated CuInS2/ZnS/silica NCs phosphor layer was investigated by UV/vis, zeta-potential, and EL with increasing the layer number. |
| 저자 | 정원근, 정현철, 이창훈, 박청기, 김성현 |
| 소속 | 고려대 |
| 키워드 | 실리카; CuInS2; 발광다이오드 |
| 원문파일 | 초록 보기 |
