scholarly journals Highly efficient non-doped blue fluorescent OLEDs with low efficiency roll-off based on hybridized local and charge transfer excited state emitters

2020 ◽  
Vol 11 (19) ◽  
pp. 5058-5065 ◽  
Author(s):  
Xianhao Lv ◽  
Mizhen Sun ◽  
Lei Xu ◽  
Runzhe Wang ◽  
Huayi Zhou ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Highly Efficient ◽  
Low Efficiency

A new pure fluorescent blue HLCT-emitter was designed and synthesized. Highly efficient non-doped blue OLEDs with low efficiency roll-off were achieved.

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,...

Cyanophenyl spiro[acridine-9,9′-fluorene]s as simple structured hybridized local and charge-transfer-based ultra-deep blue emitters for highly efficient non-doped electroluminescent devices (CIEy 〈 0.05)

2021 ◽  
Author(s):  
Taweesak Sudyoadsuk ◽  
Sujinda Petdee ◽  
Chokchai Kaiyasuan ◽  
Chaiyon Chaiwai ◽  
Praweena Wongkaew ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Quantum Efficiency ◽  
Internal Quantum Efficiency ◽  
Electroluminescent Devices ◽  
Highly Efficient ◽  
Deep Blue ◽  
Successful Approach ◽  
Blue Emitters

The hybridized local and charge-transfer (HLCT) excited state is a successful approach to accomplish both high external and internal quantum efficiency. To attain deep blue emissive HLCT emitters, two cyanophenyl...

Solvent modulated excited state processes of push–pull molecule with hybridized local excitation and intramolecular charge transfer character

2019 ◽  
Vol 21 (7) ◽  
pp. 3894-3902 ◽  
Author(s):  
Hongwei Song ◽  
Kang Wang ◽  
Zhuoran Kuang ◽  
Yong Sheng Zhao ◽  
Qianjin Guo ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
High Efficiency ◽  
Intramolecular Charge Transfer ◽  
Local Excitation ◽  
Highly Efficient

Recently, a type of synthetic highly efficient OLED molecule based on a hybridized local excitation and charge transfer (HLCT) character has received much attention as a potential high-efficiency fluorescent OLED material.

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