Exciton dynamics in heterojunction thin-film devices based on exciplex-sensitized triplet–triplet annihilation

2018 ◽  
Vol 20 (43) ◽  
pp. 27449-27455 ◽  
Author(s):  
Nathan T. Tierce ◽  
Chia-Hsun Chen ◽  
Tien-Lung Chiu ◽  
Chi-Feng Lin ◽  
Christopher J. Bardeen ◽  
...  
Keyword(s):  
Thin Film ◽  
Light Emitting Diode ◽  
Blue Emission ◽  
Diode Structure ◽  
Blocking Layer ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Thin Film Devices ◽  
Triplet Triplet Annihilation

A triplet-diffusion-singlet-blocking layer and fluorescent dopant enhance blue emission due to triplet–triplet annihilation in an organic light emitting diode structure.

Efficient deep-blue non-doped organic light-emitting diode with improved roll-off of efficiency based on hybrid local and charge-transfer excited state

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70085-70090 ◽  
Author(s):  
Haichao Liu ◽  
Qing Bai ◽  
Weijun Li ◽  
Yachen Guo ◽  
Liang Yao ◽  
...  
Keyword(s):  
Excited State ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Blue Emission ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Deep Blue ◽  
Organic Light ◽  
Slow Roll ◽  
Donor Acceptor

Acceptor–donor–acceptor triphenylamine–phenanthroimidazole derivate (TPA–2PPI) servers as an emitter, whose device exhibits deep-blue emission, high efficiency and slow roll-off of efficiency.

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