Picture of satellite hovering above Earth

Open Access research exploring new frontiers in aerospace engineering...

Strathprints makes available Open Access scholarly outputs by the Department of Mechanical & Aerospace Engineering at Strathclyde, which includes an emphasis on air and space research. The Advanced Space Concepts Laboratory (ASCL), the Future Air-Space Transportation Technology Laboratory (FASTTlab) and the Intelligent Computational Engineering Laboratory (ICElab) specialise in this work.

The ASCL undertakes frontier research on visionary space systems, delivering radically new approaches to space systems engineering. Meanwhile, FASTTlab seeks to revolutionise the global air-space transportation systems and infrastructure. ICElab develops advanced research on artificial and computational intelligence techniques with particular focus on optimisation, optimal control, uncertainty-based multidisciplinary design optimisation and machine learning applied to the design and control of complex engineering systems.

Learn more and explore the Open Access research by ASCL, FASTTlab and ICElab. Or, explore all of Strathclyde's Open Access research...

Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing

Wu, M. and Gong, Zheng and Keuhne, A.J.C. and Kanibolotsky, Alexander and Chen, Yujie and Perepichka, I.F. and Mackintosh, Allan and Gu, Erdan and Skabara, Peter and Pethrick, Richard and Dawson, Martin (2009) Hybrid GaN/organic microstructured light-emitting devices via ink-jet printing. Optics Express, 17 (19). pp. 16436-16443. ISSN 1094-4087

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

Abstract

We report what we believe to be the first use of organic nanostructures for efficient colour conversion of gallium nitride light emitting diodes (LEDs). The particular nanomaterials, based on star-shaped truxene oligofluorenes, offer an attractive alternative to inorganic colloidal quantum dots in the search for novel and functional 'nanophosphors'. The truxenes have been formed into a composite with photoresist and ink-jet printed onto microstructured gallium nitride LEDs, resulting in a demonstrator hybrid microdisplay technology with pixel size ~32μm. The output power density of the hybrid device was measured to be ~8.4mW/cm2 per pixel at driving current density of 870.8A/cm2 and the efficiency of colour conversion at drive current of 7mA was estimated to be approximately 50%.