Energy transfer and triplet exciton confinement in polymeric electrophosphorescent devices

2003 ◽  
Vol 41 (21) ◽  
pp. 2681-2690 ◽  
Author(s):  
Fang-Chung Chen ◽  
Shun-Chi Chang ◽  
Gufeng He ◽  
Seungmoon Pyo ◽  
Yang Yang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Triplet Exciton ◽  
Triplet Exciton Confinement

Triplet exciton confinement and unconfinement by adjacent hole-transport layers

2004 ◽  
Vol 95 (12) ◽  
pp. 7798-7802 ◽  
Author(s):  
Kenichi Goushi ◽  
Raymond Kwong ◽  
Julie J. Brown ◽  
Hiroyuki Sasabe ◽  
Chihaya Adachi
Keyword(s):  
Hole Transport ◽  
Triplet Exciton ◽  
Hole Transport Layers ◽  
Triplet Exciton Confinement

Triplet exciton confinement for enhanced fluorescent organic light-emitting diodes using a co-host system

2016 ◽  
Vol 68 (10) ◽  
pp. 1228-1234 ◽  
Author(s):  
Han Kyu Yoo ◽  
Ho Won Lee ◽  
Song Eun Lee ◽  
Young Kwan Kim ◽  
Se Hyun Kim ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Triplet Exciton ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Host System ◽  
Organic Light ◽  
Triplet Exciton Confinement

Improvement in triplet exciton confinement of electrophosphorescent device using fluorinated polymer host

2009 ◽  
Author(s):  
Isao Takasu ◽  
Yukitami Mizuno ◽  
Shuichi Uchikoga ◽  
Shintaro Enomoto ◽  
Tomoaki Sawabe ◽  
...  
Keyword(s):  
Triplet Exciton ◽  
Fluorinated Polymer ◽  
Triplet Exciton Confinement ◽  
Polymer Host

Luminescence and triplet energy transfer in mixed crystals. II. Three component systems

1969 ◽  
Vol 22 (10) ◽  
pp. 2085 ◽  
Author(s):  
KR Adam ◽  
MF O'Dwyer
Keyword(s):  
Energy Transfer ◽  
Concentration Dependence ◽  
Guest Molecule ◽  
Triplet Exciton ◽  
Mixed Crystals ◽  
Host Crystal ◽  
Triplet Energy ◽  
Guest Molecules ◽  
Component Systems ◽  
Triplet Energy Transfer

Triplet-triplet energy transfer between two guest molecules in a host crystal has been studied by observing the temperature and concentration dependence of the phosphorescence of the donor guest molecule. The results are interpreted in terms of transfer via the host triplet exciton band.

scholarly journals Photon upconversion through triplet exciton-mediated energy relay

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sanyang Han ◽  
Zhigao Yi ◽  
Jiangbin Zhang ◽  
Qifei Gu ◽  
Liangliang Liang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Performance ◽  
Technology Development ◽  
Upconversion Luminescence ◽  
Excitation Power ◽  
Host Lattice ◽  
Energy Migration ◽  
Triplet Exciton ◽  
Long Distance ◽  
Experimental Conditions

AbstractExploration of upconversion luminescence from lanthanide emitters through energy migration has profound implications for fundamental research and technology development. However, energy migration-mediated upconversion requires stringent experimental conditions, such as high power excitation and special migratory ions in the host lattice, imposing selection constraints on lanthanide emitters. Here we demonstrate photon upconversion of diverse lanthanide emitters by harnessing triplet exciton-mediated energy relay. Compared with gadolinium-based systems, this energy relay is less dependent on excitation power and enhances the emission intensity of Tb3+ by 158-fold. Mechanistic investigations reveal that emission enhancement is attributable to strong coupling between lanthanides and surface molecules, which enables fast triplet generation (<100 ps) and subsequent near-unity triplet transfer efficiency from surface ligands to lanthanides. Moreover, the energy relay approach supports long-distance energy transfer and allows upconversion modulation in microstructures. These findings enhance fundamental understanding of energy transfer at molecule-nanoparticle interfaces and open exciting avenues for developing hybrid, high-performance optical materials.

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