Organic light-emitting devices with a hole-blocking layer inserted between the hole-injection layer and hole-transporting layer

2006 ◽  
Vol 88 (8) ◽  
pp. 083508 ◽  
Author(s):  
Y. Divayana ◽  
B. J. Chen ◽  
X. W. Sun ◽  
K. S. Sarma
Keyword(s):  
Hole Injection ◽  
Blocking Layer ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Hole Injection Layer ◽  
Organic Light ◽  
Hole Transporting ◽  
Hole Blocking Layer ◽  
Organic Light Emitting Devices

Analysis of the performances of organic light-emitting devices with a doped or an undoped polyaniline-poly(4-styrenesulfonate) hole-injection layer

2011 ◽  
Vol 122 (6) ◽  
pp. 3618-3623 ◽  
Author(s):  
Anna De Girolamo Del Mauro ◽  
Giuseppe Nenna ◽  
Valentina Bizzarro ◽  
Immacolata Angelica Grimaldi ◽  
Fulvia Villani ◽  
...  
Keyword(s):  
Hole Injection ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Hole Injection Layer ◽  
Organic Light ◽  
Organic Light Emitting Devices

A Novel Efficient Blue Organic Light Emitting Structure

2005 ◽  
Vol 475-479 ◽  
pp. 3677-3680 ◽  
Author(s):  
Wen Long Jiang ◽  
Yu Duan ◽  
Yi Zhao ◽  
Jingying Hou ◽  
Shi Yong Liu
Keyword(s):  
Light Emission ◽  
Copper Phthalocyanine ◽  
Luminous Efficiency ◽  
Blocking Layer ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Carrier Recombination ◽  
Organic Light ◽  
Hole Blocking Layer ◽  
Organic Light Emitting Devices

In this paper, we describe the performance of an organic light emitting devices〔OLEDs〕 with ITO /4,4’,4“-tris{N,- （ 3-methylphenyl ） -N-phenylamino}triphenylamine (m-MTDATA) /N,N-diphenyl-N,N-bis1-naphthyl-1,1-biphenyl-4,4-diamine (NPB) /copper phthalocyanine (CuPc) / NPB / Bathocuproine(BCP) / tris-8-hydroxyquinoline Aluminum (Alq3) / LiF/ AL structure, the CuPc inserted between the two layers of NPB as a hole-consuming layer (HCL), and the BCP as a hole-blocking layer (HBL) . The EL spectrum peak is at 430 nm, indicating that the carrier recombination is confined in the NPB layer, in additional light emission originates from NPB. Compared with the luminous efficiency of the conventional diode without CuPc layer, that of the diode with HCL has been sharply increased up to 2.62 cd /A. It suggested that the CuPc and BCP exactly function as hole-consuming and hole-blocking layers, respectively, which enhance the efficiency of carrier，s recombination and confine the excitation in the EL layer.

Highly efficient organic light-emitting devices by introducing traps in the hole-injection layer

RSC Advances ◽  
2013 ◽  
Vol 3 (34) ◽  
pp. 14616 ◽  
Author(s):  
Wenyu Ji ◽  
Jing Wang ◽  
Qinghui Zeng ◽  
Zisheng Su ◽  
Zaicheng Sun
Keyword(s):  
Hole Injection ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Hole Injection Layer ◽  
Highly Efficient ◽  
Organic Light ◽  
Organic Light Emitting Devices
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