Results 111 to 120 of about 45,828 (296)

Optimizing OLED performance on polyimide substrates: Evaluation of ITO and organic layer thicknesses with different encapsulation materials

ETRI Journal
We investigate the electro-optical properties of indium tin oxide (ITO) transparent electrodes on polyimide (PI) and glass substrates and their impact on organic light-emitting diode (OLED) performance.
Hyunsu Cho , Gi Heon Kim , Won-jae Lee , Yong-Hae Kim   +3 more
doaj   +1 more source

TechNews digests: Jan - Nov 2009 [PDF]

, 2009
TechNews is a technology, news and analysis service aimed at anyone in the education sector keen to stay informed about technology developments, trends and issues. TechNews focuses on emerging technologies and other technology news.

core  

High‐Sublimation‐Temperature Additives for Efficient Perovskite Solar Cells via Single‐Source Evaporation

Advanced Energy Materials, EarlyView.
The introduction of high‐sublimation‐temperature additives during the mechanosynthesis of FAPbI3 powders enables the single‐source evaporation of phase‐pure, additive‐free FAPbI3 thin films of high optoelectronic quality. The additive‐engineered deposition process yields photovoltaic devices with stabilized efficiencies exceeding 18% for an active ...
Zongbao Zhang, Ran Ji, Tim Schramm, Elena Siliavka, Chunqiu Zheng, Julius Brunner, Bekcy Joseph, Kashimul Hossain, Angelika Wrzesinska‐Lashkova, Vladimir Shilovskikh, Tianyu Zhao, Nathaniel P. Gallop, Boris Rivkin, Yana Vaynzof   +13 more
wiley   +1 more source

Designing molecules to bypass the singlet-triplet bottleneck in the electroluminescence of organic light-emitting-diode materials

, 2002
Electroluminescence in organic light emitting diode (OLED) materials occurs via the recombination of excitonic electrons-hole pairs Only the singlet excitons of commonly used OLED materials, e.g., Aluminum trihydroxyquinoline (AlQ$_3$), decay radiatively,
Brown A R, Burroughs J H, Dodabalapur A, Dodabalapur A, Frisch M J (eds), Issi J-P, Kido J, M W C Dharma-wardana, Marek Z Zgierski, Schmidbaur H   +9 more
core   +1 more source

Pancake Lenses through Curved Lamination for Compact Virtual Reality

Advanced Intelligent Systems, EarlyView.
This article presents an ultrathin VR optical system based on a 1.35 in. microdisplay, leveraging curved lamination technology. Compared to mainstream solutions, the proposed design demonstrates superior compactness (volume compression by 12%) and enhanced optical performance.
Jiaping Sun, Dewen Cheng, Cheng Chi, Yuefan Shan, Da Wang, Chao Ping Chen   +5 more
wiley   +1 more source

Identifying the origin of delayed electroluminescence in a polariton organic light-emitting diode

Nanophotonics
Modifying the energy landscape of existing molecular emitters is an attractive challenge with favourable outcomes in chemistry and organic optoelectronic research.
Abdelmagid Ahmed Gaber, Qureshi Hassan A., Papachatzakis Michael A., Siltanen Olli, Kumar Manish, Ashokan Ajith, Salman Seyhan, Luoma Kimmo, Daskalakis Konstantinos S.   +8 more
doaj   +1 more source

Sensitivity of the photo-physical properties of organometallic complexes to small chemical changes

, 2010
We investigate an effective model Hamiltonian for organometallic complexes that are widely used in optoelectronic devices. The two most important parameters in the model are $J$, the effective exchange interaction between the $\pi$ and $\pi^*$ orbitals ...
Jacko, A. C., McKenzie, Ross H., Powell, B. J.   +2 more
core   +1 more source

Study of TADF Emitters in OLEDs [PDF]

, 2015
Delayed fluorescence through thermally activated delayed fluorescence (TADF) has great potential for the creation of inexpensive and highly efficient white lighting applications, with superior colour rendering.
GRAVES, DAVID,RICHARD
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Effect of Dipole Position and Orientation on Light Extraction for Red OLEDs on Periodically Corrugated Substrate - FEM Simulations Study [PDF]

Informacije MIDEM, 2021
M. Kovačič, M. Kovačič
doaj   +1 more source

IR drop-independent 8T1C LTPS pixel circuit for medium-sized AMOLED displays

Journal of Information Display
OLED displays have been widely used in mobile devices due to their numerous advantages. The pixel circuits of OLED displays typically employ low-temperature polycrystalline silicon (LTPS) thin-film transistors (TFTs) for their high mobility and ...
Won-Been Jeong, Su-Hyeong Kim, Hoon-Ju Chung, Seung-Woo Lee   +3 more
doaj   +1 more source