Asymmetric Triaryldiamines as Thermally Stable Hole Transporting Layers for Organic Light-Emitting Devices

1998 ◽  
Vol 10 (8) ◽  
pp. 2235-2250 ◽  
Author(s):  
Bryan E. Koene ◽  
Douglas E. Loy ◽  
Mark E. Thompson
Keyword(s):  
Thermally Stable ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Hole Transporting ◽  
Organic Light Emitting Devices

Thermally stable triphenylene-based hole-transporting materials for organic light-emitting devices

2011 ◽  
Vol 519 (18) ◽  
pp. 5917-5923 ◽  
Author(s):  
Jong-Yek Park ◽  
Jeong Mi Kim ◽  
Haejin Lee ◽  
Kwang-Youn Ko ◽  
Kyoung Soo Yook ◽  
...  
Keyword(s):  
Thermally Stable ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Hole Transporting ◽  
Organic Light Emitting Devices ◽  
Hole Transporting Materials

Application of Phthalocyanine Derivatives as Hole Transporting Layer to Organic Light Emitting Devices

2008 ◽  
Vol 8 (9) ◽  
pp. 4644-4648 ◽  
Author(s):  
Sin Hye Jung ◽  
Chang-Sik Ha
Keyword(s):  
Bisphenol A ◽  
Relative Efficiency ◽  
Thermally Stable ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Hole Transporting ◽  
Organic Light Emitting Devices ◽  
Phenylene Diamine

We fabricated organic light emitting devices (OLEDs) with thermally stable metal tetra-aminophthalocyanine (MT4APc, where M is Co, Cu, or Zn) dispersed in poly(bisphenol A-co-4-nitrophthalic anhydride-co-1,3-phenylenediamine) (polyetherimide, PEI) or 2,2-bis(3,4-dicarboxy-phenyl) hexafluoroisopropane dianhydride-2,4,5,6-trimethyl-1,4-phenylene-diamine (6FDA-4MPDA) polyimide (PI) as a hole transporting layer (HTL). The relative efficiency of the MT4APc as a HTL was found to be in the order CuT4APc > CoT4APc ≈ TPD > ZnT4APc. It was found that the 6FDA-4MPDA PI as a matrix of HTL exhibited better hole transporting properties than PEI.

A High Tg Carbazole-Based Hole-Transporting Material for Organic Light-Emitting Devices

2005 ◽  
Vol 17 (5) ◽  
pp. 1208-1212 ◽  
Author(s):  
Jiuyan Li ◽  
Di Liu ◽  
Yanqing Li ◽  
Chun-Sing Lee ◽  
Hoi-Lun Kwong ◽  
...  
Keyword(s):  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Hole Transporting ◽  
Organic Light Emitting Devices ◽  
Hole Transporting Material

Improve the Efficiency of White Organic Light-Emitting Devices Using Double-Doped System

2010 ◽  
Vol 152-153 ◽  
pp. 687-690
Author(s):  
Gui Ying Ding ◽  
Wen Long Jiang ◽  
Guang De Wang ◽  
Qiang Han ◽  
Xi Chang
Keyword(s):  
Current Efficiency ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Maximum Current ◽  
Hole Transporting ◽  
White Oleds ◽  
Organic Light Emitting Devices ◽  
20 Nm ◽  
White Oled

The doped and non-doped white Organic light-emitting devices (OLEDs) were fabricated, using strong yellow emitting and hole-transporting ability of TPAHQZn. When the white OLED is a double-doped structure, greatly enhanced the efficiency of the device. The double-doped white device were fabricated as follows: ITO/2T-NATA (17 nm)/ CBP: 30% TPAHQZn: 8% Ir(ppy)3 (25 nm)/ NPBX (15 nm)/BCP(8nm)/TPBi: 10% Ir(ppy)3 (15nm)/Alq3 (20 nm)/LiF (1.3 nm)/Al. The double-doped white OLEDs were obtained with Commission International de L’Eclairage coordinates of (0.29,0.28) at 17 V, the maximum current efficiency increaed four times that double-doped white device of 4.12cd/A(8V) than non-doped of 1.03 cd/A (10V) .

Small molecular hole-transporting and emitting materials for hole-only green organic light-emitting devices

2016 ◽  
Vol 131 ◽  
pp. 41-48 ◽  
Author(s):  
Xicheng Liu ◽  
Junfei Liang ◽  
Jing You ◽  
Lei Ying ◽  
Yin Xiao ◽  
...  
Keyword(s):  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Hole Transporting ◽  
Organic Light Emitting Devices

An efficient hole-transporting blue fluorophore 3,6-dipyrenyl-9-ethylcarbazole for undoped organic light-emitting devices

2012 ◽  
Vol 162 (5-6) ◽  
pp. 415-418 ◽  
Author(s):  
Qing-Xiao Tong ◽  
Shiu-Lun Lai ◽  
Ming-Fai Lo ◽  
Mei-Yee Chan ◽  
Tsz-Wai Ng ◽  
...  
Keyword(s):  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Hole Transporting ◽  
Organic Light Emitting Devices

Highly Efficient Multifunctional Phosphorescent Dendrimers Consisting of an Iridium-Complex Core and Charge-Transporting Dendrons for Organic Light-Emitting Devices

2005 ◽  
Vol 871 ◽  
Author(s):  
Toshimitsu Tsuzuki ◽  
Nobuhiko Shirasawa ◽  
Toshiyasu Suzuki ◽  
Shizuo Tokito
Keyword(s):  
First Generation ◽  
Green Emission ◽  
Iridium Complex ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Hole Transporting ◽  
Complex Core ◽  
Bright Green ◽  
Organic Light Emitting Devices

AbstractWe report a novel class of emitting materials for use in the organic light-emitting devices (OLEDs): multifunctional phosphorescent dendrimers that have a phosphorescent core and have charge transporting dendrons. We have synthesized first-generation and second-generation dendrimers consisting of a fac-tris(2-phenylpyridine)iridium [Ir(ppy)3] core and hole transporting phenylcarbazole-based dendrons. Smooth amorphous films of these dendrimers were formed by spin-coating them from solutions. The OLEDs using the dendrimer exhibited bright green or yellowish-green emission from the Ir(ppy)3 core. The external quantum efficiency of the OLED using the mixture film of the first-generation dendrimer and an electron-transporting material was as high as 7.6%.

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