https://scholars.lib.ntu.edu.tw/handle/123456789/580684
標題: | Surface plasmon coupling effects on the f?rster resonance energy transfer from quantum dot into rhodamine 6G | 作者: | Chen C.-Y Ni C.-C Wu R.-N Kuo S.-Y Li C.-H Kiang Y.-W CHIH-CHUNG YANG YEAN-WOEI KIANG |
關鍵字: | Energy transfer; Forster resonance energy transfer; Molecules; Nanocrystals; Semiconductor quantum dots; Silver nanoparticles; Surface plasmon resonance; Ag nanoparticle; Coupling condition; Coupling effect; Emission efficiencies; Photoluminescence decay; Rate-equation models; Resonance energy transfer; Surface plasmon coupling; Surface plasmons | 公開日期: | 2021 | 卷: | 32 | 期: | 29 | 來源出版物: | Nanotechnology | 摘要: | Rhodamine 6G (R6G) molecules linked CdZnSeS/ZnS green-emitting quantum dots (QDs) are self-assembled onto Ag nanoparticles (NPs) for studying the surface plasmon (SP) coupling effect on the F?rster resonance energy transfer (FRET) process from QD into R6G. SP coupling can enhance the emission efficiency of QD such that FRET has to compete with QD emission for transferring energy into R6G. It is found that FRET efficiency is reduced under the SP coupling condition. Although R6G emission efficiency can also be enhanced through SP coupling when it is directly linked onto Ag NP, the enhancement decreases when R6G is linked onto QD and then the QD-R6G complex is self-assembled onto Ag NP. In particular, R6G emission efficiency can be reduced through SP coupling when the number of R6G molecules linked onto a QD is high. A rate-equation model is built for resembling the measured photoluminescence decay profiles and providing us with more detailed explanations for the observed FRET and SP coupling behaviors. ? 2021 IOP Publishing Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105537396&doi=10.1088%2f1361-6528%2fabf775&partnerID=40&md5=d3f6da74d64cc917b823e375faf2639d https://scholars.lib.ntu.edu.tw/handle/123456789/580684 |
ISSN: | 09574484 | DOI: | 10.1088/1361-6528/abf775 |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。