Results 61 to 70 of about 72,519 (283)

The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters

Advanced Functional Materials, EarlyView.
A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul, Haonan Zhao, Collin N. Muniz, Mark E. Thompson, Stephen R. Forrest   +4 more
wiley   +1 more source

Imidazole derivatives for efficient organic light-emitting diodes

Journal of Information Display, 2020
Since the first development of organic light-emitting diodes (OLEDs) in 1987, imidazole derivatives, mainly including phenanthroimidazole (PI) and benzimidazole (BI), have increasingly attracted attention.
Shaofeng Ye, Shaoqing Zhuang, Biao Pan, Runda Guo, Lei Wang   +4 more
doaj   +1 more source

Modeling of positive and negative organic magnetoresistance in organic light-emitting diodes [PDF]

, 2012
Copyright 2012 by the American Physical Society. Article is available at
Desai, P, Drew, AJ, Gillin, WP, Kreouzis, T, Rolfe, NJ, Shakya, P, Zhang, S   +6 more
core   +1 more source

Bio‐Orthogonally Crosslinked Supramolecular Polymer Bottlebrush Hydrogels for Long‐Term 3D Cell Culture

Advanced Functional Materials, EarlyView.
Fibrous benzenetrispeptide (BTP) hydrogels, fabricated via strain‐promoted azide‐alkyne cycloaddition (SPAAC) crosslinking, form robust, bioinert networks. These hydrogels can support 3D cell culture, where cell viability and colony growth depend on the fiber content.
Ceren C. Pihlamagi, David Pretzel, Peer Nölte, Kourosh Rezaei, Ulrich S. Schubert, Johannes C. Brendel   +5 more
wiley   +1 more source

Controlling triplet–triplet upconversion and singlet-triplet annihilation in organic light-emitting diodes for injection lasing

Communications Materials, 2022
Losses induced by triplet excitons are a major obstacle for electrically pumped organic lasers. Here, a combination of enhanced triplet-triplet upconversion and suppressed singlet-triplet annihilation is demonstrated as a route towards lasing in organic ...
Atul Shukla, Monirul Hasan, Gangadhar Banappanavar, Viqar Ahmad, Jan Sobus, Evan G. Moore, Dinesh Kabra, Shih-Chun Lo, Ebinazar B. Namdas   +8 more
doaj   +1 more source

Model for Triplet State Engineering in Organic Light Emitting Diodes

, 2014
Engineering the position of the lowest triplet state (T1) relative to the first excited singlet state (S1) is of great importance in improving the efficiencies of organic light emitting diodes and organic photovoltaic cells.
Prodhan, Suryoday, Ramasesha, S., Soos, Zoltan G.   +2 more
core   +1 more source

Visible Light Communications towards 5G [PDF]

, 2015
5G networks have to offer extremely high capacity for novel streaming applications. One of the most promising approaches is to embed large numbers of co-operating small cells into the macro-cell coverage area.
Chvojka, P., Ghassemlooy, Z., Haigh, P. A., Zvanovec, S.   +3 more
core   +2 more sources

Photoconductivity‐Driven Quantum Efficiency Gain in Inorganic Ruddlesden‐Popper Layered Cs2PbBr2I2 Perovskite Photodetector for Visible Light Detection

Advanced Functional Materials, EarlyView.
Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah, Asif Abdullah Khan, Saikiran Khamgaonkar, Majid Haji Bagheri, Danyah Khan, Md Rasidul Islam, Mahmoud Almadoun, Aixi Pan, Alexander Li, Marwa Abd‐Ellah, Vivek Maheshwari, Dayan Ban   +11 more
wiley   +1 more source

Models of organometallic complexes for optoelectronic applications

, 2010
Organometallic complexes have potential applications as the optically active components of organic light emitting diodes (OLEDs) and organic photovoltaics (OPV).
A. C. Jacko, B. J. Powell, Baccouche, Blondin, Bomben, Brittain, Brocks, Brooks, Burn, Butschke, Cano-Cortés, Cohen, Colombo, Finkenzeller, Forrest, Forrest, Freed, Friend, Ghosh, Grätzel, Hagfeldt, Haneder, Hay, Hebner, Jacko, Jacobsen, Jones, King, Kober, Komada, Kouwenhoven, Ku, LaBute, Lamansky, Li, Lo, Lo, Mendes, Miki, Nagao, O'Regan, Obara, Perdew, Pierloot, Reimers, Ross H. McKenzie, Scriven, Scriven, Sun, Tang, Wilson, Wodrich, Yersin, Yersin, Yoon, Zwickel   +55 more
core   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source