Electron-beam nanopatterning and spectral modulation of organic molecular light-emitting single crystals

The nanopatterning of light-emitting molecular crystals with semiconducting properties can be crucial for the development of future optoelectronic and nanoelectronic devices based on organic materials. In this respect, electron-beam writing is a powerful tool to realize patterns at the nanoscale, bu...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 30(2014), 6 vom: 18. Feb., Seite 1643-9
1. Verfasser: Persano, Luana (VerfasserIn)
Weitere Verfasser: Camposeo, Andrea, Pisignano, Dario, Burini, Andrea, Spearman, Peter, Tavazzi, Silvia
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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245 1 0 |a Electron-beam nanopatterning and spectral modulation of organic molecular light-emitting single crystals 
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520 |a The nanopatterning of light-emitting molecular crystals with semiconducting properties can be crucial for the development of future optoelectronic and nanoelectronic devices based on organic materials. In this respect, electron-beam writing is a powerful tool to realize patterns at the nanoscale, but it is still rarely applied to active organic materials. Here, sub-100-nm-scale nanopatterning is performed on the surface of quaterthiophene monocrystals by direct maskless electron-beam writing. Gratings are produced on organic crystals with periods ranging from 80 nm to 1 μm and single-line lateral dimensions ranging from 20 to 500 nm, with electron-beam exposure doses between 100 and 1500 μC/cm(2). The morphological and texturing properties of the pattern are discussed, together with the interaction mechanisms between the electron beam and the crystal. The resulting modulation of the light emission is consistent with Bragg scattering from the patterned periodic features 
650 4 |a Journal Article 
700 1 |a Camposeo, Andrea  |e verfasserin  |4 aut 
700 1 |a Pisignano, Dario  |e verfasserin  |4 aut 
700 1 |a Burini, Andrea  |e verfasserin  |4 aut 
700 1 |a Spearman, Peter  |e verfasserin  |4 aut 
700 1 |a Tavazzi, Silvia  |e verfasserin  |4 aut 
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