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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Gu, Erdan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2020Gigabit per second visible light communication based on AlGaInP red micro-LED micro-transfer printed onto diamond and glasscitations
- 2017Design, fabrication and application of GaN-based micro-LED arrays with individual addressing by n-electrodescitations
- 2012Colloidal quantum dot nanocomposites for visible wavelength conversion of modulated optical signalscitations
- 2010Amplified spontaneous emission in free-standing membranes incorporating star-shaped monodisperse π-conjugated truxene oligomerscitations
- 2009Free-standing light-emitting organic nanocomposite membranes
- 2009Star-shaped oligofluorene nanostructured blend materialscitations
- 2009Hybrid GaN/organic microstructured light-emitting devices via ink-jet printingcitations
- 2008Integration by self-aligned writing of nanocrystal/epoxy composites on InGaN micropixelated light-emitting diodescitations
- 2008Light emitting polymer blends and diffractive optical elements in high-speed direct laser writing of microstructurescitations
- 2008Individually-addressable flip-chip AllnGaN micropixelated light emitting diode arrays with high continuous and nanosecond output powercitations
- 2006Hybrid inorganic/organic micro-structured light-emitting diodes produced by self-aligned direct writing
- 2006Microfabrication in free-standing gallium nitride using UV laser micromachiningcitations
- 2006Wavelength-tunable and white light emission from polymer-converted micropixellated InGaN ultraviolet light-emitting diodescitations
- 2004Micromachining and dicing of sapphire, gallium nitride and micro LED devices with UV copper vapour lasercitations
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article
Amplified spontaneous emission in free-standing membranes incorporating star-shaped monodisperse π-conjugated truxene oligomers
Abstract
A light-emitting photoresist comprising a vinyl-ether-based photosensitive polymer host doped with star-shaped π-conjugated truxene-core oligomers is shown to be a promising platform for the realization of soft-matter photonic devices. In particular, a simple process for the fabrication of free-standing membranes with no spin casting and peel-off steps is reported. The approach uses instead the hydrophobic nature of the nanocomposites. Membranes are fabricated, with a concentration of 20 mg ml−1 of the truxene oligomer denoted as T3, directly on deionized water by ultraviolet flood illumination. The resulting membrane is 94 μm thick on average with a diameter up to 50 mm. Amplified spontaneous emission developing around 435 nm above an ∼400 μJ cm−2 threshold is obtained by optical pulse pumping the sample at 355 nm in an edge-emitting photoluminescence configuration. These membranes form a versatile platform for flexible organic semiconductor lasers and optical amplifiers