Random laser from engineered nanostructures obtained by surface tension driven lithography

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.


Autore Pugliese

Tutti gli autori

  • Ghofraniha N. , Viola I. , Di Maria F. , Barbarella G. , Gigli G. , Conti C.

Titolo volume/Rivista

LASER & PHOTONICS REVIEWS


Anno di pubblicazione

2013

ISSN

1863-8880

ISBN

Non Disponibile


Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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