Highly Efficient Red-Emitting Hybrid Polymer Light-Emitting Diodes via Förster Resonance Energy Transfer Based on Homogeneous Polymer Blends with the Same Polyfluorene Backbone

2013 ◽  
Vol 5 (12) ◽  
pp. 5690-5695 ◽  
Author(s):  
Bo Ram Lee ◽  
Wonho Lee ◽  
Thanh Luan Nguyen ◽  
Ji Sun Park ◽  
Ji-Seon Kim ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Polymer Blends ◽  
Light Emitting Diodes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Förster Resonance Energy Transfer ◽  
Hybrid Polymer ◽  
Light Emitting ◽  
Highly Efficient ◽  
Polymer Light Emitting Diodes

scholarly journals Preparation of CdTe superparticles for white light-emitting diodes without Förster resonance energy transfer

RSC Advances ◽  
2019 ◽  
Vol 9 (53) ◽  
pp. 30797-30802
Author(s):  
Haoyang Zou ◽  
Deli Wang ◽  
Baijuan Gong ◽  
Yi Liu
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emitting Diodes ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Förster Resonance Energy Transfer ◽  
Light Emitting ◽  
Conversion Materials ◽  
White Light Emitting Diodes ◽  
Color Conversion

CdTe superparticles are used as the color conversion materials for the fabrication of WLEDs without FRET.

scholarly journals Supramolecular FRET photocyclodimerization of anthracenecarboxylate with naphthalene-capped γ-cyclodextrin

2011 ◽  
Vol 7 ◽  
pp. 290-297 ◽  
Author(s):  
Qian Wang ◽  
Cheng Yang ◽  
Gaku Fukuhara ◽  
Tadashi Mori ◽  
Yu Liu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Association Constants ◽  
Förster Resonance Energy Transfer ◽  
Spectral Studies ◽  
Equivalent Amount ◽  
Highly Efficient ◽  
Circular Dichroïsm ◽  
Förster Resonance

γ-Cyclodextrin (CD) derivatives with a naphthalene moiety anchored to one or two of the glucose units of the CD were synthesized in order to investigate the effects of flexible and rigid capping upon complexation, as well as Förster resonance energy transfer (FRET) and photochirogenic behavior of anthracenecarboxylate (AC) moieties. UV–vis, circular dichroism and fluorescence spectral studies revealed that two AC molecules are simultaneously included in the modified γ-CD cavity to form a right-handed screw and also that the naphthalene cap efficiently transfers the singlet energy to AC included in the CD cavity via the FRET mechanism. Compared to native γ-CD, the modified γ-CDs showed much higher first association constants (K 1) but relatively lower second association constants (K 2) for AC, leading to two-fold larger overall affinities (K 1 K 2). Photocyclodimerization of AC with these modified γ-CDs produced more head-to-head (HH) dimers in much better enantiomeric excesses (ee) for anti-HH dimer compared to native γ-CD. Interestingly, FRET excitation further enhanced the chemical and optical yields of anti-HH dimer up to 36% and 35% ee, for which the highly efficient FRET sensitization within the CD cavity, minimizing the “contamination” from the achiral “outside” photoreaction, is responsible. FRET sensitization also enabled us to achieve the catalytic photocyclodimerization of AC with a sub-equivalent amount of chiral supramolecular host.

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