Highly efficient top-emitting white organic light-emitting diodes with improved contrast and reduced angular dependence for active matrix displays

2010 ◽  
Vol 11 (12) ◽  
pp. 2055-2059 ◽  
Author(s):  
Guohua Xie ◽  
Zhensong Zhang ◽  
Qin Xue ◽  
Shiming Zhang ◽  
Li Zhao ◽  
...  
Keyword(s):  
Angular Dependence ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Active Matrix ◽  
Light Emitting ◽  
Highly Efficient ◽  
Organic Light ◽  
Active Matrix Displays

Organic Electronics: Successes in Organic Light Emitting Diodes and Display Technology

2012 ◽  
Vol 736 ◽  
pp. 241-249 ◽  
Author(s):  
Deepak
Keyword(s):  
Organic Semiconductors ◽  
Light Emitting Diodes ◽  
Single Crystal Silicon ◽  
Organic Light Emitting Diodes ◽  
Crystal Silicon ◽  
Active Matrix ◽  
Light Emitting ◽  
Organic Light ◽  
Active Matrix Displays ◽  
Display Technology

Whereas single crystal silicon limited to 300 mm in diameter dominates the bulk of electronic devices, when electronics is required on a larger scale we have to rely on either amorphous or multi-crystalline materials. In this category, the organic semiconductors have made rapid in-roads. Among their applications, most notable successes are organic light emitting diodes (OLEDs) based displays. But, these OLEDs could also be made to emit in ultraviolet (UV) as shown through polysilanes devices. Two materials that we have investigated emit in UV or near UV. The emission spectrum could be manipulated by modifying the side groups on the main Si chain. Further discussed in the paper are full colour passive matrix displays we have made and development of thin films transistor for moving towards active matrix displays.

Novel Carbazole-based Multifunctional Materials with Hybridized Local and Charge-Transfer Excited State Acting as Deep Blue Emitters and Phosphorescent Hosts for Highly Efficient Organic Light-Emitting Diodes

2021 ◽  
Author(s):  
Haitao Zhou ◽  
Mengna Yin ◽  
Zhenhong Zhao ◽  
Yanqin Miao ◽  
Xin Jin ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Multifunctional Materials ◽  
Light Emitting ◽  
Highly Efficient ◽  
Deep Blue ◽  
Organic Light ◽  
Blue Emitters

In this work, two carbazole- and benzo[d]oxazole-based novel multifunctional materials with hybridized local and charge-transfer (HLCT) characteristic, namely OCI and OCT, which could act as deep-blue fluorophors and phosphorescent hosts,...

Efficient organic light-emitting diodes based on iridium(III) complexes containing indolo[3,2,1-jk]carbazole derivatives with narrow emission bandwidths and low efficiency roll offs

2021 ◽  
Author(s):  
Xiang-Ji Liao ◽  
Jin-Jun Zhu ◽  
Li Yuan ◽  
Zhi-Ping Yan ◽  
Xu-Feng Luo ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Carbazole Derivatives ◽  
Highly Efficient ◽  
Organic Light ◽  
Low Efficiency ◽  
Narrow Emission

In this work, two cyclometalated ligands 2-(pyridin-2-yl)indolo[3,2,1-jk]carbazole (pyidcz) and 2-(4-(trifluoromethyl)pyridin-2-yl)indolo[3,2,1-jk]carbazole (tfpyidcz) using indolo[3,2,1-jk]carbazole unit were synthesized for highly efficient iridium(III) complexes (pyidcz)2Ir(tmd) and (tfpyidcz)2Ir(tmd) (tmd = 2,2,6,6-tetramethyl-3,5-heptanedione). The two Ir(III)...

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