| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Multi-Color Emission of Hybrid Block Copolymer-Quantum Dot Microspheres by Controlled Quantum Dot Spatial Isolation |
| 초록 |
We developed multi-color emitting hybrid microspheres with block copolymers (BCPs) and QDs through control of the locations of different-colored QDs in BCP micelles. Hydrogen interaction assisted method was exploited to confine QDs within the BCP spheres without sacrificing any quantum yield efficiency. BCP microspheres with raspberry-like surface structures were prepared by an evaporation-induced self-assembly from an emulsion. When different-colored QDs were independently incorporated into isolated micelles, FRET was completely suppressed because the size of the protective micellar corona was greater than the Forster radius. In contrast, FRET was observed when QDs were concurrently incorporated into the same micelle cores. The spatially controlled, independent light emissions from our QD-encoded microspheres could be beneficial for use in applications such as security inks for anti-counterfeit, bio-imaging and conducting bioassays by targeting biomarkers. |
| 저자 |
구강희1, 김민수1, 백관열1, 신재만1, 정선행1, 장세규2, 채원식3, 이기라4, 김범준1
|
| 소속 |
1KAIST, 2KEPRI, 3KBSI, 4성균관대 |
| 키워드 |
block copolymer; quantum dot; site isolation; multi-color emission; microsphere
|
| E-Mail |
|
