A molecular dynamics study on the interface morphology of vapor-deposited amorphous organic thin films

2019 ◽  
Vol 21 (3) ◽  
pp. 1484-1490 ◽  
Author(s):  
Dongsun Yoo ◽  
Hochul Song ◽  
Yong Youn ◽  
Sang Ho Jeon ◽  
Youngmi Cho ◽  
...  
Keyword(s):  
Thin Films ◽  
Molecular Dynamics ◽  
Light Emitting Diodes ◽  
Organic Thin Films ◽  
Organic Light Emitting Diodes ◽  
Interface Morphology ◽  
Light Emitting ◽  
Organic Layers ◽  
Organic Light

The interfaces between amorphous organic layers play an important role in the efficiency and lifetime of organic light emitting diodes (OLEDs).

All Solution-Processed Quintuple-Layer Organic Light-Emitting Diodes Containing Organic-Inorganic Hybrid Active Layers Fabricated by Sol-Gel Method

2018 ◽  
Vol 777 ◽  
pp. 113-120
Author(s):  
Yusuke Jitsui ◽  
Naoki Ohtani
Keyword(s):  
Thin Films ◽  
Active Layer ◽  
Light Emitting Diodes ◽  
Sol Gel ◽  
Organic Light Emitting Diodes ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Gel Method ◽  
Organic Layers ◽  
Organic Light

Organic-inorganic hybrid thin films were fabricated using the sol-gel method and applied to multi-layer organic light-emitting diodes (OLEDs) as an active layer. A polymer emissive material poly (9,9-dioctyl-fluorene-co-N-4-butylphenyl-diphenylamine) (TFB) was solved in a sol-gel reaction accelerator perhydropolysilazane (PHPS). The PHPS solution turned into SiO2 by humidity treatment. Thus, the TFB:PHPS solution became SiO2 thin films in which the organic emissive material TFB was dispersed. All the organic layers of OLEDs can be fabricated using solution-process because the organic-inorganic hybrid active layer is not soluble with the adjacent organic layers. Consequently, we successfully fabricated quintuple-layer OLEDs consisting of the following five organic films: hole-injection, hole-transporting, active (organic-inorganic hybrid) electron-transporting, and electron-injection layers. Electroluminescence (EL) was successfully observed.

The Light Extraction Efficiency Enhancement in Organic Light-Emitting Diodes with Substrate Modifications

2012 ◽  
Vol 605-607 ◽  
pp. 2031-2034
Author(s):  
Chong Wang ◽  
Jun Wang ◽  
Kai Yuan ◽  
Lei Yu
Keyword(s):  
Light Emitting Diodes ◽  
Extraction Efficiency ◽  
Internal Quantum Efficiency ◽  
Organic Thin Films ◽  
Organic Light Emitting Diodes ◽  
Light Extraction Efficiency ◽  
Light Emitting ◽  
Organic Layers ◽  
Organic Light ◽  
The Difference

The internal quantum efficiency of organic light-emitting diodes (OLEDs) can reach values near to 100%. Due to the difference among the refractive indices of the substrate, anode, organic thin films, and the air, two wave-guiding phenomena arise in the anode/organic layers and substrate of the OLEDs. In this paper, the substrate modifications are developed to simulate the optical luminous field for OLEDs. Monte Carlo method was used to investigate enhancement of the external extraction efficiency, which is related to the total reflection inside the device by changing the structure of the substrate.

P‐72: Nozzle Jet Printing of Organic Thin Films for Solution Process of Organic Light Emitting Diodes

2019 ◽  
Vol 50 (1) ◽  
pp. 1503-1506
Author(s):  
Kunsik An ◽  
Jong Beom Kim ◽  
Dai Geon Yoon ◽  
Yong-Cheol Jeong ◽  
Kyung-Tae Kang
Keyword(s):  
Thin Films ◽  
Light Emitting Diodes ◽  
Solution Process ◽  
Organic Thin Films ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Organic Light ◽  
Jet Printing

Crystalline organic thin films for crystalline OLEDs (I): orientation of phenanthroimidazole derivatives

2022 ◽  
Author(s):  
Dan Liu ◽  
Feng Zhu ◽  
Donghang Yan
Keyword(s):  
Thin Films ◽  
Light Emitting Diodes ◽  
Organic Thin Films ◽  
Life Time ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Amorphous Thin Films ◽  
Organic Light

Compared to traditional organic light-emitting diodes (OLEDs) based on amorphous thin films, crystalline OLEDs possess promising advantages in developing advanced display technologies, such as longer life time and lower driving...

scholarly journals Emission Characteristics of Organic Light-Emitting Diodes and Organic Thin-Films with Planar and Corrugated Structures

2010 ◽  
Vol 11 (4) ◽  
pp. 1527-1545 ◽  
Author(s):  
Mao-Kuo Wei ◽  
Chii-Wann Lin ◽  
Chih-Chung Yang ◽  
Yean-Woei Kiang ◽  
Jiun-Haw Lee ◽  
...  
Keyword(s):  
Thin Films ◽  
Light Emitting Diodes ◽  
Organic Thin Films ◽  
Organic Light Emitting Diodes ◽  
Emission Characteristics ◽  
Light Emitting ◽  
Organic Light

Fine-tuning the thicknesses of organic layers to realize high-efficiency and long-lifetime blue organic light-emitting diodes

2012 ◽  
Vol 21 (8) ◽  
pp. 083303 ◽  
Author(s):  
Jian-Ning Yu ◽  
Min-Yan Zhang ◽  
Chong Li ◽  
Yu-Zhu Shang ◽  
Yan-Fang Lü ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Fine Tuning ◽  
Light Emitting ◽  
Organic Layers ◽  
Organic Light ◽  
Long Lifetime

Efficient organic light-emitting diodes using polycrystalline silicon thin films as semitransparent anode

2005 ◽  
Vol 87 (8) ◽  
pp. 083504 ◽  
Author(s):  
X. L. Zhu ◽  
J. X. Sun ◽  
H. J. Peng ◽  
Z. G. Meng ◽  
M. Wong ◽  
...  
Keyword(s):  
Thin Films ◽  
Polycrystalline Silicon ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Light Emitting ◽  
Silicon Thin Films ◽  
Organic Light
Sign in / Sign up

Export Citation Format

Share Document