| People | Locations | Statistics |
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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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Apostoluk, Aleksandra
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2021Metallic oxide defect luminescent emission for application in solar cells and WLEDs
- 2017Sol-gel processing of hybrid ZnO quantum dots mesospheres for LED applications
- 2016Zinc oxide nanocomposites for solar energy conversion and LED applications
- 2016Intense visible emission from ZnO/PAAX (X = H or Na) nanocomposite synthesized via a simple and scalable sol-gel methodcitations
- 2009Growth of thin polymer films containing side-chain azo-dye analyzed by atomic force microscopycitations
- 2007Dual-frequency coherent induction of non-centrosymmetry in a chiral bisazo-dye doped polymer filmcitations
- 2007Influence of molecular chain orientation on optical and carrier transport properties of polymer blends
- 2007Effect of the molecular chain orientation on carrier transport and optical properties of polymer blends
- 2007Influence of polar molecular chain orientation on optical and carrier transport properties of polymer blendscitations
- 2006Effect of molecular chain orientation on carrier transport and optical properties of polymer blends
- 2006Optical and carrier transport properties of polymer blends as influenced by polar molecular chain orientation
- 2004Photoinduction of surface-relief gratings during all-optical poling of polymer filmscitations
- 2004Semiconducting dye-functionalised poled polymers for photovoltaic applications
- 2003Quasi phase matched chi(2) gratings printed with various memory mechanisms by dual frequency interferences in polymer films
- 2002Quasi-phase-matched gratings printed by all-optical poling in polymer filmscitations
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article
Intense visible emission from ZnO/PAAX (X = H or Na) nanocomposite synthesized via a simple and scalable sol-gel method
Abstract
SSCI-VIDE+CDFA:ING+PIG:AVE:LOM:TCO:SDA ; International audience ; Intense visible nano-emitters are key objects for many technologies such as single photon source, bio-labels or energy convertors. Chalcogenide nanocrystals have ruled this domain for several decades. However, there is a demand for cheaper and less toxic materials. In this scheme, ZnO nanoparticles have appeared as potential candidates. At the nanoscale, they exhibit crystalline defects which can generate intense visible emission. However, even though photoluminescence quantum yields as high as 60% have been reported, it still remains to get quantum yield of that order of magnitude which remains stable over a long period. In this purpose, we present hybrid ZnO/polyacrylic acid (PAAH) nanocomposites, obtained from the hydrolysis of diethylzinc in presence of PAAH, exhibiting quantum yield systematically larger than 20%. By optimizing the nature and properties of the polymeric acid, the quantum yield is increased up to 70% and remains stable over months. This enhancement is explained by a model based on the hybrid type II heterostructure formed by ZnO/PAAH. The addition of PAAX (X = H or Na) during the hydrolysis of ZnEt 2 represents a cost effective method to synthesize scalable amounts of highly luminescent ZnO/PAAX nanocomposites.