scholarly journals Substrate thermal conductivity effect on heat dissipation and lifetime improvement of organic light-emitting diodes

2009 ◽  
Vol 94 (25) ◽  
pp. 253302 ◽  
Author(s):  
Seungjun Chung ◽  
Jae-Hyun Lee ◽  
Jaewook Jeong ◽  
Jang-Joo Kim ◽  
Yongtaek Hong
Keyword(s):  
Thermal Conductivity ◽  
Heat Dissipation ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

scholarly journals Highly efficient, heat dissipating, stretchable organic light-emitting diodes based on a MoO3/Au/MoO3 electrode with encapsulation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dae Keun Choi ◽  
Dong Hyun Kim ◽  
Chang Min Lee ◽  
Hassan Hafeez ◽  
Subrata Sarker ◽  
...  
Keyword(s):  
Heat Dissipation ◽  
Light Emitting Diodes ◽  
Mechanical Stability ◽  
Molybdenum Trioxide ◽  
Organic Light Emitting Diodes ◽  
Silicon Dioxide Nanoparticles ◽  
Light Emitting ◽  
Organic Light ◽  
Optical Adhesive ◽  
Low Efficiency

AbstractStretchable organic light-emitting diodes are ubiquitous in the rapidly developing wearable display technology. However, low efficiency and poor mechanical stability inhibit their commercial applications owing to the restrictions generated by strain. Here, we demonstrate the exceptional performance of a transparent (molybdenum-trioxide/gold/molybdenum-trioxide) electrode for buckled, twistable, and geometrically stretchable organic light-emitting diodes under 2-dimensional random area strain with invariant color coordinates. The devices are fabricated on a thin optical-adhesive/elastomer with a small mechanical bending strain and water-proofed by optical-adhesive encapsulation in a sandwiched structure. The heat dissipation mechanism of the thin optical-adhesive substrate, thin elastomer-based devices or silicon dioxide nanoparticles reduces triplet-triplet annihilation, providing consistent performance at high exciton density, compared with thick elastomer and a glass substrate. The performance is enhanced by the nanoparticles in the optical-adhesive for light out-coupling and improved heat dissipation. A high current efficiency of ~82.4 cd/A and an external quantum efficiency of ~22.3% are achieved with minimum efficiency roll-off.

Numerical Study of Heat Dissipation Model for Organic Light-emitting Diodes

2015 ◽  
Vol 36 (7) ◽  
pp. 841-845
Author(s):  
林 洋 LIN Yang ◽  
张 静 ZHANG Jing ◽  
蔡 苗 CAI Miao ◽  
魏 斌 WEI Bin ◽  
杨连乔 YANG Lian-qiao
Keyword(s):  
Heat Dissipation ◽  
Light Emitting Diodes ◽  
Numerical Study ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Dissipation Model

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
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