Recent progress in hot exciton materials for organic light-emitting diodes

2021 ◽  
Author(s):  
Yuwei Xu ◽  
Pei Xu ◽  
Dehua Hu ◽  
Yuguang Ma
Keyword(s):  
Recent Progress ◽  
Development Process ◽  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Structure Property ◽  
Light Emitting ◽  
Structure Property Relationships ◽  
Organic Light ◽  
Material Systems

The development process, molecular design principles, material systems, structure–property relationships and OLED applications of hot exciton materials are comprehensively summarized.

Recent progress in solution processable TADF materials for organic light-emitting diodes

2018 ◽  
Vol 6 (21) ◽  
pp. 5577-5596 ◽  
Author(s):  
Tianyu Huang ◽  
Wei Jiang ◽  
Lian Duan
Keyword(s):  
Small Molecules ◽  
Recent Progress ◽  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Solution Processed ◽  
Light Emitting ◽  
Organic Light ◽  
Solution Processable

Molecular design and recent progress on solution-processed TADF materials in OLEDs, including small molecules, polymers and dendrimers, is reviewed.

P-170: Molecular Design of Sensitizer for High Efficiency in Hyper-fluorescent Organic Light-Emitting Diodes

2018 ◽  
Vol 49 (1) ◽  
pp. 1800-1803
Author(s):  
Ji Seon Jang ◽  
Si Hyun Han ◽  
Hye Won Choi ◽  
Kyoung Soo Yook ◽  
Jun Yeob Lee
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light

Phenanthroimidazole-Based Organic Fluorophores for Organic Light-Emitting Diodes

2018 ◽  
pp. 305-388
Author(s):  
Sivakumar Vaidyanathan ◽  
Jairam Tagare
Keyword(s):  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Energy Utilization ◽  
Light Emitting ◽  
Design And Synthesis ◽  
Organic Light ◽  
Color Displays ◽  
Host Materials ◽  
Yellow Orange

Considering the imminent global energy crisis and inefficient energy utilization, energy-efficient organic light-emitting diodes (OLEDs) are considered one of the most competitive candidates for displays and particularly for future energy-saving lighting sources. Full color displays require all primary colors: red, green, and blue (RGB). In recent decades, numerous phenanthroimidazole (PI) RGB-emitting materials have been developed for efficient OLEDs. In organic electronics, considerable interest is shown on PI, due to ease in fluorophore modification. This chapter focuses on the design and synthesis of PI-based materials and their applications in OLEDs. At first, some nondoped blue, green, and yellow fluorescent materials are comprehensively studied. Then attention has been paid for typical blue, green, yellow, orange, and red PhOLEDs of PI-based fluorophores as a host materials are briefly presented. The molecular design concept, general synthetic routes for PI materials, and the applications of fluorophores in fluorescent OLEDs and host materials in PhOLEDs are reviewed.

scholarly journals Recent advances on organic blue thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diodes (OLEDs)

2018 ◽  
Vol 14 ◽  
pp. 282-308 ◽  
Author(s):  
Thanh-Tuân Bui ◽  
Fabrice Goubard ◽  
Malika Ibrahim-Ouali ◽  
Didier Gigmes ◽  
Frédéric Dumur
Keyword(s):  
Molecular Orbital ◽  
Light Emitting Diodes ◽  
Molecular Design ◽  
Delayed Fluorescence ◽  
Organic Light Emitting Diodes ◽  
Thermally Activated Delayed Fluorescence ◽  
Light Emitting ◽  
Thermally Activated ◽  
Organic Light ◽  
Recent Advances

The design of highly emissive and stable blue emitters for organic light emitting diodes (OLEDs) is still a challenge, justifying the intense research activity of the scientific community in this field. Recently, a great deal of interest has been devoted to the elaboration of emitters exhibiting a thermally activated delayed fluorescence (TADF). By a specific molecular design consisting into a minimal overlap between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) due to a spatial separation of the electron-donating and the electron-releasing parts, luminescent materials exhibiting small S1–T1 energy splitting could be obtained, enabling to thermally upconvert the electrons from the triplet to the singlet excited states by reverse intersystem crossing (RISC). By harvesting both singlet and triplet excitons for light emission, OLEDs competing and sometimes overcoming the performance of phosphorescence-based OLEDs could be fabricated, justifying the interest for this new family of materials massively popularized by Chihaya Adachi since 2012. In this review, we proposed to focus on the recent advances in the molecular design of blue TADF emitters for OLEDs during the last few years.

Recent Progress of Singlet‐Exciton‐Harvesting Fluorescent Organic Light‐Emitting Diodes by Energy Transfer Processes

2019 ◽  
Vol 31 (34) ◽  
pp. 1803714 ◽  
Author(s):  
Sung Yong Byeon ◽  
Dong Ryun Lee ◽  
Kyoung Soo Yook ◽  
Jun Yeob Lee
Keyword(s):  
Energy Transfer ◽  
Recent Progress ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Singlet Exciton ◽  
Transfer Processes ◽  
Organic Light

Molecular design of large-bandgap host materials and their application to blue phosphorescent organic light-emitting diodes

2015 ◽  
Vol 26 ◽  
pp. 218-224 ◽  
Author(s):  
Ju Sik Kang ◽  
Tae Ryang Hong ◽  
Hyung Jong Kim ◽  
Young Hoon Son ◽  
Jong-Kwan Bin ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Molecular Design ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Host Materials ◽  
Blue Phosphorescent

Key issues and recent progress of high efficient organic light-emitting diodes

2013 ◽  
Vol 17 ◽  
pp. 69-104 ◽  
Author(s):  
Jian Wang ◽  
Fujun Zhang ◽  
Jian Zhang ◽  
Weihua Tang ◽  
Aiwei Tang ◽  
...  
Keyword(s):  
Recent Progress ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
High Efficient ◽  
Key Issues

Recent Progress in High-Efficiency Blue-Light-Emitting Materials for Organic Light-Emitting Diodes

2017 ◽  
Vol 27 (13) ◽  
pp. 1603007 ◽  
Author(s):  
Yirang Im ◽  
Seong Yong Byun ◽  
Ji Han Kim ◽  
Dong Ryun Lee ◽  
Chan Seok Oh ◽  
...  
Keyword(s):  
Blue Light ◽  
Recent Progress ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light
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