Study of natural organic dyes as active material for fabrication of organic light emitting diodes

2016 ◽  
Author(s):  
A. Sánchez Juárez ◽  
D. Castillo ◽  
A. Guaman ◽  
S. Espinosa ◽  
D. Obregón
Keyword(s):  
Light Emitting Diodes ◽  
Organic Dyes ◽  
Active Material ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

Enhanced Electroluminescence of CdSe/ZnS Quantum Dot Light–emitting Diodes with Phosphorescent Donors

2011 ◽  
Vol 1348 ◽  
Author(s):  
Yiqiang Zhang ◽  
X. A. Cao
Keyword(s):  
Energy Transfer ◽  
Light Emitting Diodes ◽  
Organic Dyes ◽  
Effective Means ◽  
Organic Light Emitting Diodes ◽  
Exciton Energy ◽  
Light Emitting ◽  
Precise Control ◽  
Organic Light ◽  
Good Agreement

ABSTRACTWe demonstrated the enhancement of electroluminescence (EL) from green CdSe/ZnS QDs in hybrid QD/organic light-emitting diodes (QD-LEDs) by employing blue phosphorescent dyes Bis(4,6-difluorophenylpyridinato-N,C2)picolinatoiridium (FIrpic) as efficient exciton harvesters and energy transfer donors. Precise control of the concentration of the FIrpic donors doped in a 4,4’-N, N’-dicarbazole-biphenyl (CBP) host and their distance from the QD layer led to complete triplet exciton energy transfer and EL enhancement by a factor of 2.5. The Förster distance between FIrpic molecules and green CdSe/ZnS QDs was determined to be ∼ 8 nm, which is in a good agreement with the value calculated using the Förster model. Our study shows that integrating colloidal QDs with phosphorescent organic dyes provides an effective means for improving the quantum efficiency of QD-based hybrid LEDs.

Fabrication and Characterization of Blue Organic Light-emitting Diodes

2011 ◽  
Author(s):  
Merric Srour ◽  
Richard Fu ◽  
Steven Blomquist ◽  
Jianmin Shi ◽  
Eric Forsythe ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Fabrication And Characterization

Accurate Vapor Pressure Prediction for Large Organic Molecules: Application to Materials Utilized in Organic Light-Emitting Diodes

2020 ◽  
Vol 16 (9) ◽  
pp. 5845-5851
Author(s):  
Alexander V. Yakubovich ◽  
Won-Joon Son ◽  
Ohyun Kwon ◽  
Hyeonho Choi ◽  
Byoungki Choi ◽  
...  
Keyword(s):  
Vapor Pressure ◽  
Organic Molecules ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light
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