Enhancement of Efficiency for White-Organic Light-Emitting Diode with a Thin Electron-Blocking Layer

This study presents the influences of dye doping and hole blocking layer insertion on the electroluminescent properties of the blue organic light emitting diode. The luminance of the device was significantly improved by BCzVB doping because of the utilization of effective Förster energy transfer and the improvement of carrier injection and trapping; a BCzVB dominant emission was observed. Furthermore, when a BCP layer was inserted between the TBADN:BCzVB and Alq3 layers, a thin BCP layer insertion enhanced the injection of electrons and improved the luminance of the device. In contrast, a thick BCP layer insertion caused a delay in electron transport, resulting in a decrease in current density and a deterioration in luminance.

Download Full-text

The application of in-situ prepared polyaniline film as a hole blocking layer in polymeric organic light emitting diode

Synthetic Metals ◽

10.1016/s0379-6779(00)00878-x ◽

2001 ◽

Vol 121 (1-3) ◽

pp. 1651-1652 ◽

Cited By ~ 17

Author(s):

Yeh Yuh-Ruey ◽

Hsiao Hsia-Tsai ◽

Wu Chun-Guey

Keyword(s):

Light Emitting Diode ◽

Blocking Layer ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Polyaniline Film ◽

Organic Light ◽

Hole Blocking Layer

Download Full-text

Efficiency Improvement of Top-Emission Organic Light Emitting Diode by Using UV-Ozone, Doped Emission Layer, and Hole-Blocking Layer

Journal of The Electrochemical Society ◽

10.1149/1.3264644 ◽

2010 ◽

Vol 157 (2) ◽

pp. J25 ◽

Cited By ~ 5

Author(s):

Ying-Nan Lai ◽

Wei-Chou Hsu ◽

Ching-Sung Lee ◽

Ching-Wu Wang ◽

Chiu-Sheng Ho ◽

...

Keyword(s):

Light Emitting Diode ◽

Blocking Layer ◽

Efficiency Improvement ◽

Emission Layer ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Organic Light ◽

Hole Blocking Layer ◽

Uv Ozone

Download Full-text

Review on Electroluminescence Behaviour of Organic Light Emitting Diode

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.832.455 ◽

2013 ◽

Vol 832 ◽

pp. 455-459 ◽

Cited By ~ 1

Author(s):

Nurul Hafizah A. Rahman ◽

Azrif Manut ◽

Mohamad Rusop

Keyword(s):

Deoxyribonucleic Acid ◽

Series Resistance ◽

Light Emitting Diode ◽

Paper Report ◽

Electron Blocking Layer ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Turn On ◽

Organic Light ◽

Dna Complex

In this paper report a review on electroluminescent efficiency using a deoxyribonucleic acid (DNA) complex as an electron blocking layer (EBL) material in emitting organic light emitting diode (OLED). The resulting called BioLED showed a high luminous efficiency. The DNA-based BioLED was as much more efficient and brighter than their OLED counterparts. It is found the effect of EBL is to increase the device turn-on voltage for OLED structure. This is attributed to the fact that the DNA complex increases the series resistance of the device which is turn reduces the current through the device.

Download Full-text

Exciton dynamics in heterojunction thin-film devices based on exciplex-sensitized triplet–triplet annihilation

Physical Chemistry Chemical Physics ◽

10.1039/c8cp05261a ◽

2018 ◽

Vol 20 (43) ◽

pp. 27449-27455 ◽

Cited By ~ 5

Author(s):

Nathan T. Tierce ◽

Chia-Hsun Chen ◽

Tien-Lung Chiu ◽

Chi-Feng Lin ◽

Christopher J. Bardeen ◽

...

Keyword(s):

Thin Film ◽

Light Emitting Diode ◽

Blue Emission ◽

Diode Structure ◽

Blocking Layer ◽

Light Emitting ◽

Organic Light Emitting Diode ◽

Organic Light ◽

Thin Film Devices ◽

Triplet Triplet Annihilation

A triplet-diffusion-singlet-blocking layer and fluorescent dopant enhance blue emission due to triplet–triplet annihilation in an organic light emitting diode structure.

Download Full-text