https://scholars.lib.ntu.edu.tw/handle/123456789/580679
標題: | Forster resonance energy transfer in surface plasmon coupled color conversion processes of colloidal quantum dots | 作者: | CHIH-CHUNG YANG NI C.-C KUO S.-Y LI Z.-H WU S.-H WU R.-N CHEN C.-Y CHIH-CHUNG YANG |
關鍵字: | Color; Energy transfer; Forster resonance energy transfer; Nanocrystals; Semiconductor quantum dots; Silver nanoparticles; Surface plasmon resonance; Surface plasmons; Colloidal quantum dots; Color conversions; Coupling condition; Coupling process; Emission behavior; Relative concentration; Resonance energy transfer; Surface molecules; Conversion efficiency | 公開日期: | 2021 | 卷: | 29 | 期: | 3 | 起(迄)頁: | 4067-4081 | 來源出版物: | Optics Express | 摘要: | F?rster resonance energy transfer (FRET) from a green-emitting quantum dot (GQD) into a red-emitting quantum dot (RQD) is an important mechanism in a multiple-color conversion process, particularly under the surface plasmon (SP) coupling condition for enhancing color conversion efficiency. Here, the dependencies of FRET efficiency on the relative concentrations of GQD and RQD in their mixtures and their surface molecule coatings for controlling surface charges are studied. Also, the SP coupling effects induced by two kinds of Ag nanoparticles on the emission behaviors of GQD and RQD are demonstrated, particularly when FRET is involved in the coupling process. FRET efficiency is reduced under the SP coupling condition. SP coupling can enhance the color conversion efficiency of either GQD or RQD. The combination of SP coupling and FRET can be used for controlling the relative converted light intensities in a multiple-color conversion process. ? 2021 Optical Society of America. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099790365&doi=10.1364%2fOE.415679&partnerID=40&md5=3d41386e9e63ac706946f592bb9c3d8d https://scholars.lib.ntu.edu.tw/handle/123456789/580679 |
ISSN: | 10944087 | DOI: | 10.1364/OE.415679 |
顯示於: | 電機工程學系 |
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