| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
고분자가공/복합재료-자가치유 고분자와 복합소재 |
| 제목 |
Direct patterning of quantum dot nano-structure and enhancement of its quantum yield with plasmonic Au nanowall |
| 초록 |
Production of user-defined 2D patterned arrays of quantum dots (QDs) is still quite challenging issue because of intensity reduction, resolution limitation, and the alignment issue which result in restricted uses of QDs for practical applications in various fields. In this paper, a new approach for direct patterning of QD nanostructures is developed using soft lithography technique with PDMS stamp and QD/polystyrene solution. More important is that with resulting robust QD nanostructure, we successfully attached 10nm scale gold nanowall onto QD pre-pattern using secondary sputtering lithography during ion-bombardment process. This plasmonic gold nanowall induced metal enhanced fluorescence (MEF) phenomenon resulting enhancement of fluorescence signal intensity. Accordingly, in the near future, this facile approach for QD direct patterning with plasmonic nanostructures could be used as optical substrate for imaging applications and fabrication of QD-LED devices. |
| 저자 |
조수연, 전환진, 유해욱, 조경민, 김종선, 정희태
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| 소속 |
한국과학기술원 |
| 키워드 |
Quantum dot; nano pattern; lithography; metal enhanced fluorescence; secondary sputtering
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| E-Mail |
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