Picture of wind turbine against blue sky

Open Access research with a real impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

The Energy Systems Research Unit (ESRU) within Strathclyde's Department of Mechanical and Aerospace Engineering is producing Open Access research that can help society deploy and optimise renewable energy systems, such as wind turbine technology.

Explore wind turbine research in Strathprints

Explore all of Strathclyde's Open Access research content

Amplified spontaneous emission in free-standing membranes incorporating star-shaped monodisperse π-conjugated truxene oligomers

Guilhabert, Benoit and Laurand, Nicolas and Herrnsdorf, Johannes and Chen, Yujie and Mackintosh, Allan R. and Kanibolotsky, Alexander L. and Gu, Erdan and Skabara, Peter J. and Pethrick, R. A. and Dawson, Martin D. (2010) Amplified spontaneous emission in free-standing membranes incorporating star-shaped monodisperse π-conjugated truxene oligomers. Journal of Optics, 12 (3). ISSN 0972-8821

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

A light-emitting photoresist comprising a vinyl-ether-based photosensitive polymer host doped with star-shaped π-conjugated truxene-core oligomers is shown to be a promising platform for the realization of soft-matter photonic devices. In particular, a simple process for the fabrication of free-standing membranes with no spin casting and peel-off steps is reported. The approach uses instead the hydrophobic nature of the nanocomposites. Membranes are fabricated, with a concentration of 20 mg ml−1 of the truxene oligomer denoted as T3, directly on deionized water by ultraviolet flood illumination. The resulting membrane is 94 μm thick on average with a diameter up to 50 mm. Amplified spontaneous emission developing around 435 nm above an ∼400 μJ cm−2 threshold is obtained by optical pulse pumping the sample at 355 nm in an edge-emitting photoluminescence configuration. These membranes form a versatile platform for flexible organic semiconductor lasers and optical amplifiers