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White light emission via cascade Förster energy transfer in (Ga, In)N quantum well/polymer blend hybrid structures

Itskos, G. and Belton, C. and Heliotis, G. and Watson, I.M. and Dawson, M.D. and Murray, R. and Bradley, D.D.C. (2009) White light emission via cascade Förster energy transfer in (Ga, In)N quantum well/polymer blend hybrid structures. Nanotechnology, 20 (27).

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Abstract

We have studied the room-temperature non-radiative energy transfer processes in hybrid structures composed of (Ga, In)N/GaN single quantum wells and semiconducting polymer blend films placed in nanometre-scale proximity. The blends consist of three polyfluorene materials with concentrations adjusted so that they emit white light. Power-dependent photoluminescence (PL) measurements are used to investigate the process of energy transfer from the quantum wells to the different components of the polymer blend. We show that energy distribution among the hybrid structures involves competition between nanoscale range non-radiative energy transfer processes from the inorganic well to the polymer components and within the blend itself.

Item type: Article
ID code: 16516
Keywords: emission, energy transfer, hybrid structures, Optics. Light, Bioengineering, Mechanics of Materials, Materials Science(all), Chemistry(all), Mechanical Engineering, Electrical and Electronic Engineering
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Institute of Photonics
Related URLs:
    Depositing user: Miss Lisa Flanagan
    Date Deposited: 04 Mar 2010 14:54
    Last modified: 28 Mar 2014 05:20
    URI: http://strathprints.strath.ac.uk/id/eprint/16516

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