| 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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Mäkelä, Tapio
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2022Giant magnetoresistance response in Sr 2 FeMoO 6 based organic spin valvescitations
- 2022Optical properties of an organic-inorganic hybrid film made of regenerated cellulose doped with light-scattering TiO2 particlescitations
- 2022Giant magnetoresistance response in Sr2FeMoO6 based organic spin valvescitations
- 2018Systematic Design of Printable Metasurfacescitations
- 2018Systematic Design of Printable Metasurfaces: Validation Through Reverse-offset Printed Millimeter-wave Absorberscitations
- 2016Towards printed millimeter-wave components:Material characterizationcitations
- 2016Towards printed millimeter-wave componentscitations
- 2016Towards printed millimeter-wave components: Material characterizationcitations
- 2014Nanometer to micrometer scale patterning by thermal roll to roll NIL
- 2012Roll-to-roll pilot nanoimprinting process for backlight devicescitations
- 2012IR-sintering of ink-jet printed metal-nanoparticles on papercitations
- 2011Pilot scale roll to roll nanoimprint process for backlight devices
- 2010Backlight device fabricated by roll-to-roll nanoimprinting
- 2010Rotation controlled imprinting
- 2008Towards printed electronic devices. Large-scale processing methods for conducting polyaniline
- 2008Continuous Double-Sided Roll-to-Roll Imprinting of Polymer Filmcitations
- 2008Roll-to-Roll Fabrication of Bulk Heterojunction plastic solar cells using the reverse gravure coating techniquecitations
- 2008Roll-to-roll fabrication of bulk heterojunction plastic solar cells using the reverse gravure coating techniquecitations
- 2007Continuous 2-sided roll to roll nanopatterning of a polymer filmcitations
- 2001Self-organization of nitrogen-containing polymeric supramolecules in thin filmscitations
- 2001Imprinted electrically conductive patterns from a polyaniline blendcitations
Places of action
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article
Roll-to-roll pilot nanoimprinting process for backlight devices
Abstract
A pilot scale roll-to-roll manufacturing process for backlight devices was demonstrated using Poly(methyl methacrylate) (PMMA) film. Backlight device (28 × 28) mm² consist more than 78,000 binary elements with different orientation. Each element has 40 trenches with 5 μm width and 1.3 μm thick, totally 3.1 million trenches in one device. These devices can be used for display illumination in various applications when three LED is connected on the other end of the device. More than 1000 device was printed on 50 mm wide 375 μm thick PMMA web using custom made nanoimprinting equipment. These devices demonstrate a high throughput and a low cost production possibility for micron- and submicron optical structures.The printed patterns were analysed by using optical microscopy, atomic force microscopy (AFM) and confocal microscopy. The backlight device after LED integration was characterized using luminescence measurements. The three surface mounted LED is connect to the upper side of printed PMMA device to give light in the polymer film. To collect statistics, every 50th sample was analysed. The pattern replication is good and the depth of the imprinted structure is typically in the range of 1.2–1.4 μm when limits for working device is ca. 1.0 μm. The optical properties of the analysed devices show good homogeneity inside one device. The standard deviation for the measured luminescence values for all devices was within 17% which is still acceptable for final production. No drastic wearing of the stamp can be seen after pilot manufacturing.