| 학회 |
한국고분자학회 |
| 학술대회 |
2003년 봄 (04/11 ~ 04/12, 연세대학교) |
| 권호 |
28권 1호, p.6 |
| 발표분야 |
특별 심포지엄 |
| 제목 |
Semiconductor Quantum Dots―Polymer Composites for White Light Emitting Devices |
| 초록 |
The synthesis of a (CdSe)ZnS quantum dot-polymethylmethacrylate polymer composite and the fabrication of QD-polymer composite films are described. CdSe and (CdSe)ZnS quantum dots were produced by direct colloidal chemical synthesis and the surface-passivation method that involved an overcoating of the dots with a wider- bandgap material. PMMA is transparent in the visible spectral range and was chosen as an embedding matrix for the QDs. A 28%(w/w) of PMMA in MMA was the most appropriate concentration for producing a film of good quality and to maximize the solubility of quantum dots without phase separation of the QDs from the matrix. Green or red light emitting (CdSe)ZnS QDs-PMMA polymer composite films were prepared by combining the green or red light emitting (CdSe)ZnS dots with PMMA of high optical transparency in the visible region and spin-coating the composite solution. A white light emitting device can be fabricated by combining the green/red light emitting QD-polymer composites with the blue light emitting LED as an excitation source. The QD-polymer composites described here can be also used in flexible full color display applications. |
| 저자 |
이성훈 |
| 소속 |
서울대 |
| 키워드 |
발광고분자; 전도성고분자; 반도체 양자점; 디스플레이
|
| E-Mail |
|
