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Issue 2, 2008
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Light-emitting organic nanoaggregates from functionalized p-quaterphenylenes

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Abstract

Functionalized para-phenylenes are versatile building blocks for generating aligned fiber-like nanostructures by a self-assembly growth process on muscovite mica substrates upon controlled vapor deposition (molecule epitaxy). Functional groups were implemented at the 1,4‴-para-positions of p-quaterphenylenes (p4P) using a Suzuki cross-coupling strategy. The nanoaggregates possess outstanding optical properties, which can be modified in a controlled manner by functionalization. Functionalization allows the fluorescence peak emission frequency to shift within the blue spectral range, and the nanoaggregates' three-dimensional shape alters depending on the substitution. In the case of asymmetrically functionalized phenylenes due to the intrinsic non-zero hyperpolarizability of push–pull functionalized oligomers and non-centrosymmetry of the respective nanofibers, they act as frequency doublers.

Graphical abstract: Light-emitting organic nanoaggregates from functionalized p-quaterphenylenes

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Publication details

The article was received on 29 Aug 2007, accepted on 14 Nov 2007 and first published on 27 Nov 2007


Article type: Paper
DOI: 10.1039/B713295F
Citation: Soft Matter, 2008,4, 277-285
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    Light-emitting organic nanoaggregates from functionalized p-quaterphenylenes

    M. Schiek, F. Balzer, K. Al-Shamery, A. Lützen and H. Rubahn, Soft Matter, 2008, 4, 277
    DOI: 10.1039/B713295F

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