Efficient deep-blue non-doped organic light-emitting diode with improved roll-off of efficiency based on hybrid local and charge-transfer excited state

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70085-70090 ◽  
Author(s):  
Haichao Liu ◽  
Qing Bai ◽  
Weijun Li ◽  
Yachen Guo ◽  
Liang Yao ◽  
...  
Keyword(s):  
Excited State ◽  
High Efficiency ◽  
Light Emitting Diode ◽  
Blue Emission ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Deep Blue ◽  
Organic Light ◽  
Slow Roll ◽  
Donor Acceptor

Acceptor–donor–acceptor triphenylamine–phenanthroimidazole derivate (TPA–2PPI) servers as an emitter, whose device exhibits deep-blue emission, high efficiency and slow roll-off of efficiency.

scholarly journals Deep-Blue and Hybrid-White Organic Light Emitting Diodes Based on a Twisting Carbazole-Benzofuro[2,3-b]Pyrazine Fluorescent Emitter

Molecules ◽  
2019 ◽  
Vol 24 (2) ◽  
pp. 353 ◽  
Author(s):  
Chen-Chao Huang ◽  
Miao-Miao Xue ◽  
Fu-Peng Wu ◽  
Yi Yuan ◽  
Liang-Sheng Liao ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diode ◽  
Blue Emission ◽  
Triplet Energy ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Deep Blue ◽  
Organic Light ◽  
White Oleds ◽  
White Oled

A novel deep-blue fluorescent emitter was designed and synthesized. The external quantum efficiency (ηEQE) of the blue-emitting, doped, organic light-emitting diode (OLED) was as high as 4.34%. The device also exhibited an excellent color purity with Commission Internationale de l’Eclairage (CIE) coordinates of x = 0.15 and y = 0.05. In addition, the triplet energy had a value of 2.7 eV, which is rare for an emitter with deep-blue emission, which makes it a preferred choice for high-performance white OLEDs. By optimizing the device architectures, the color of hybrid-white OLEDs could be tunable from warm white to cool white using the aforementioned material as a bifunctional material. That is, the ηEQE of the hybrid warm-white OLED is 20.1% with a CIE x and y of 0.46 and 0.48 and the ηEQE of the hybrid cool-white OLED is 9% with a CIE x and y of 0.34 and 0.33.

High-efficiency host free deep-blue organic light-emitting diode with double carrier regulating layers

2012 ◽  
Vol 13 (12) ◽  
pp. 2893-2897 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Jing-Ru Tseng ◽  
Kuo-Yen Tseng ◽  
Wei-Ben Wang ◽  
Yung-Cheng Jou ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Deep Blue ◽  
Organic Light

scholarly journals Highly efficient near ultraviolet organic light-emitting diode based on a meta-linked donor–acceptor molecule

2015 ◽  
Vol 6 (7) ◽  
pp. 3797-3804 ◽  
Author(s):  
Haichao Liu ◽  
Qing Bai ◽  
Liang Yao ◽  
Haiyan Zhang ◽  
Hai Xu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Acceptor Molecule ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Near Ultraviolet ◽  
Organic Light ◽  
Donor Acceptor

Ameta-linked donor–acceptor (D–A) structure was utilized to achieve high-efficiency and colour-purity near ultraviolet (NUV) in organic light-emitting diodes (OLEDs).

High efficiency deep-blue organic light-emitting diode with a blue dye in low-polarity host

2008 ◽  
Vol 92 (19) ◽  
pp. 193314 ◽  
Author(s):  
Jwo-Huei Jou ◽  
Yu-Pu Lin ◽  
Mao-Fung Hsu ◽  
Ming-Hsuan Wu ◽  
Ping Lu
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Blue Dye ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Deep Blue ◽  
Organic Light

A high-efficiency hybrid white organic light-emitting diode enabled by a new blue fluorophor

2015 ◽  
Vol 3 (17) ◽  
pp. 4283-4289 ◽  
Author(s):  
Zhan Chen ◽  
Xiao-Ke Liu ◽  
Cai-Jun Zheng ◽  
Jun Ye ◽  
Xin-Yang Li ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light

High-efficiency hybrid white organic light-emitting diode enabled by a new blue fluorophor.

High efficiency Green Organic Light-emitting Diode Without Roll-off Under High Current Density

2015 ◽  
Vol 36 (11) ◽  
pp. 1307-1310
Author(s):  
田苗苗 TIAN Miao-miao ◽  
贺小光 HE Xiao-guang ◽  
祁金刚 QI Jin-gang ◽  
王 宁 Wang Ning
Keyword(s):  
Current Density ◽  
High Efficiency ◽  
High Current Density ◽  
Light Emitting Diode ◽  
High Current ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light
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