scholarly journals Design and fabrication of two-stack tandem-type all-phosphorescent white organic light-emitting diode for achieving high color rendering index and luminous efficacy

2016 ◽  
Vol 24 (21) ◽  
pp. 24161 ◽  
Author(s):  
Hyunsu Cho ◽  
Chul Woong Joo ◽  
Jonghee Lee ◽  
Hyunkoo Lee ◽  
Jaehyun Moon ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Luminous Efficacy ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Color Rendering Index ◽  
Color Rendering

Efficient very-high color rendering index organic light-emitting diode

2011 ◽  
Vol 12 (5) ◽  
pp. 865-868 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Shih-Ming Shen ◽  
Chuen-Ren Lin ◽  
Yi-Shan Wang ◽  
Yi-Chieh Chou ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Color Rendering Index ◽  
Color Rendering ◽  
Very High

High color rendering index white organic light-emitting diode using levofloxacin as blue emitter

2015 ◽  
Vol 24 (5) ◽  
pp. 057802 ◽  
Author(s):  
Yan-Qin Miao ◽  
Zhi-Xiang Gao ◽  
Ai-Qin Zhang ◽  
Yuan-Hao Li ◽  
Hua Wang ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Color Rendering Index ◽  
Color Rendering

scholarly journals Perylene Based Solution Processed Single Layer WOLED with Adjustable CCT and CRI

Electronics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 725
Author(s):  
Volkan Bozkus ◽  
Erkan Aksoy ◽  
Canan Varlikli
Keyword(s):  
Light Emitting Diode ◽  
Single Layer ◽  
Visible Range ◽  
Host Matrix ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Exciplex Emission ◽  
Color Rendering

In solution processed single layer white organic light emitting diode (WOLED) applications, the choice of host matrix and optimization of dopant levels represent two crucial parameters to consider. In this work, poly(N-vinylcarbazole) (PVK): 2-(4-Biphenylyl)-5-phenyl-1,3,4-oxadiazole (PBD) and PVK:1,3-bis[(4-tert-butylphenyl)-1,3,4-oxadiazolyl] phenylene (OXD-7) matrices are used as hosts for perylene based devices. PVK:PBD presented better compatibility and lower turn-on voltages compared to PVK:OXD-7. Benefiting from the exciplex emission observed at 630 nm, a color rendering index (CRI) value of 90 is reached with the device containing PVK:PBD as the host and 0.1 wt.% of an orange emitting perylene derivative, i.e., PDI. Introduction of the perylene based green emitter, i.e., PTE, in this emitting layer not only caused a fading in the exciplex emission, but also resulted in disappearance of the electroplex peak at 535 nm, which is detected between PVK:PBD and PTE in bare PTE containing devices. Full visible range coverage is achieved by optimizing the PDI:PTE ratio. WOLED containing PVK:PBD:0.06 wt.% PDI:0.03 wt.% PTE presented high CRI (≥95) and adjustable correlated color temperatures (CCT, 3800 K-5100 K).

High-efficiency, very-high color rendering white organic light-emitting diode with a high triplet interlayer

2011 ◽  
Vol 21 (46) ◽  
pp. 18523 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Yi-Chieh Chou ◽  
Shih-Ming Shen ◽  
Ming-Hsuan Wu ◽  
Po-Shian Wu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Color Rendering ◽  
Very High
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