Results 21 to 30 of about 187,867 (295)

Flexible and ultra-lightweight polymer membrane lasers

open access: yesNature Communications, 2018
Organic semiconductors provide a platform for flexible lasers, but these are still produced on rigid, thick substrates. Here, Karl et al. develop a method to make freestanding membrane lasers that can be transferred onto any substrate and show that these
Markus Karl   +6 more
doaj   +1 more source

Supramolecular Assemblies Showing Thermally Activated Delayed Fluorescence

open access: yesSmall Science, 2021
Supramolecular assemblies based on luminescent components offer significant advantages over their discrete counterparts, including improved quantum yields, stability, and tunability.
Thomas A. Comerford, Eli Zysman-Colman
doaj   +1 more source

245 MHz bandwidth organic light-emitting diodes used in a gigabit optical wireless data link

open access: yesNature Communications, 2020
Organic LEDs (OLEDs) have generally been considered to be slow devices. Through engineering the structure and materials of OLEDs, the authors achieve a breakthrough in the high-speed operation of OLEDs and demonstrate a 1 Gbps optical wireless link using
Kou Yoshida   +8 more
doaj   +1 more source

Functionalization of Pyrene To Prepare Luminescent Materials—Typical Examples of Synthetic Methodology [PDF]

open access: yes, 2016
Pyrene-based π-conjugated materials are considered to be an ideal organic electro-luminescence material for application in semiconductor devices, such as organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs) and organic ...
Ajami   +139 more
core   +2 more sources

Exploring the possibility of using fluorine-involved non-conjugated electron-withdrawing groups for thermally activated delayed fluorescence emitters by TD-DFT calculation

open access: yesBeilstein Journal of Organic Chemistry, 2021
The trifluoromethyl group has been previously explored as a non-conjugated electron-withdrawing group in donor–acceptor thermally activated delayed fluorescence (TADF) emitters.
Dongyang Chen, Eli Zysman-Colman
doaj   +1 more source

Towards dielectric relaxation at a single molecule scale

open access: yesScientific Reports, 2022
Dielectric relaxation lies at the heart of well-established techniques of dielectric spectroscopy essential to diverse fields of research and technology. We report an experimental route for increasing the sensitivity of dielectric spectroscopy ultimately
Vitalii Stetsovych   +8 more
doaj   +1 more source

Synthesis and characterization of copper, polyimide and TIPS-pentacene layers for the development of a solution processed fibrous transistor [PDF]

open access: yes, 2011
A study was performed for the development of a flexible organic field effect transistor starting from a polyester fibre as substrate material. Focus of subsequent layer deposition was on low temperature soluble processes to allow upscaling.
Bruneel, Els   +5 more
core   +3 more sources

Room Temperature Polariton Lasing in Ladder‐Type Oligo(p‐Phenylene)s with Different π‐Conjugation Lengths

open access: yesAdvanced Photonics Research, 2021
Polariton lasing is coherent emission that originates from macroscopic accumulation of polariton population in the ground state and is a promising route toward efficient coherent light sources as population inversion is not necessary. Unlike most Wannier–
Mengjie Wei   +5 more
doaj   +1 more source

The dominant spin relaxation mechanism in compound organic semiconductors [PDF]

open access: yes, 2010
Despite the recent interest in "organic spintronics", the dominant spin relaxation mechanism of electrons or holes in an organic compound semiconductor has not been conclusively identified.
A. Abragam   +4 more
core   +3 more sources

Growth dynamics of C60 thin films: effect of molecular structure [PDF]

open access: yes, 2009
The surface morphology and growth behavior of fullerene thin films have been studied by atomic force microscopy and height difference correlation function analysis.
Holý V., S. Yim, T. S. Jones
core   +1 more source

Home - About - Disclaimer - Privacy