http://www.cnr.it/ontology/cnr/individuo/prodotto/ID223101

Random laser from engineered nanostructures obtained by surface tension driven lithography (Articolo in rivista)

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Random laser from engineered nanostructures obtained by surface tension driven lithography (Articolo in rivista) (literal)

Anno

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Alternative label

Neda Ghofraniha (1); Ilenia Viola (2); Francesca Di Maria (3,4); Giovanna Barbarella (3); Giuseppe Gigli (5); Claudio Conti (6) (2013)
Random laser from engineered nanostructures obtained by surface tension driven lithography
in Laser & photonics reviews (Print)
(literal)

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Neda Ghofraniha (1); Ilenia Viola (2); Francesca Di Maria (3,4); Giovanna Barbarella (3); Giuseppe Gigli (5); Claudio Conti (6) (literal)

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(1) Institute for Physical Chemical Processes (IPCF-CNR), UOS Roma Kerberos, Università La Sapienza, Rome, Italy (2) National Nanotechnology Laboratory, Institute Nanoscience-CNR (NNL, CNR-NANO), via Arnesano, I-73100, Lecce, Italy and c/o Department of Physics, La Sapienza University, Rome, Italy (3) Istituto per la Sintesi Organica e la Fotoreattivita' (CNR-ISOF), via P. Gobetti 101, Bologna, Italy (4) Laboratorio MIST.E-R, via P. Gobetti 101, Bologna, Italy (5) National Nanotechnology Laboratory, Institute Nanoscience-CNR (NNL, CNR-NANO), via Arnesano, I-73100, Lecce, Italy and c/o Department of Physics, La Sapienza University, P.le A.Moro 2, I-00185, Rome; Dip. di Matematica e Fisica \"Ennio de Giorgi\", Università del Salento and Italian Institute of Technology (IIT), Centre for Biomolecular Nanotechnologies, Lecce, Italy (6) Department of Physics and Institute for Complex-Systems CNR, University Sapienza, P.le A. Moro 5, Rome, Italy (literal)

Titolo

Random laser from engineered nanostructures obtained by surface tension driven lithography (literal)

Abstract

The random laser emission from the functionalized thienyl-S,S-dioxide quinquethiophene (T5OCx) in confined patterns with different shapes is demonstrated. Functional patterning of the light emitter organic material in well defined features is obtained by spontaneous molecular self-assembly guided by surface tension driven (STD) lithography. Such controlled supramolecular nano-aggregates act as scattering centers allowing the fabrication of one-component organic lasers with no external resonator and with desired shape and efficiency. Atomic force microscopy shows that different geometric pattern with different supramolecular organization obtained by the lithographic process tailors the coherent emission properties by controlling the distribution and the size of the random scatterers. (literal)

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