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Organic semiconductors

Organic semiconductors are easy to process and can be used to make devices that are transparent, flexible and cheap. However, they are also fragile and not particularly good at conducting electricity. Three papers in the October 2009 issue of Nature Nanotechnology show that careful processing can redress these drawbacks, without compromising those qualities that make organics attractive in the first place.

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Editorial

Organics settle down p607

doi:10.1038/nnano.2009.277

The conductivity and processability of organic semiconductors are slowly but surely being improved.


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News & Views

Nanopatterning: Surfaces feel the heat pp622 - 623

Amar S Basu & Yogesh B Gianchandani

doi:10.1038/nnano.2009.287

Thermochemical lithography is able to produce features just 28 nanometres wide on polymer surfaces.


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Letters

Uniform exciton fluorescence from individual molecular nanotubes immobilized on solid substrates pp658 - 663

Dörthe M. Eisele, Jasper Knoester, Stefan Kirstein, Jürgen P. Rabe & David A. Vanden Bout

doi:10.1038/nnano.2009.227

Individual double-walled tubular aggregates are immobilized on a solid substrate out of solution using a drop-flow technique. Using near-field scanning optical microscopy, these aggregates are shown to have a remarkably uniform supramolecular structure.

Thermochemical nanopatterning of organic semiconductors pp664 - 668

Oliver Fenwick, Laurent Bozec, Dan Credgington, Azzedine Hammiche, Giovanni Mattia Lazzerini, Yaron R. Silberberg & Franco Cacialli

doi:10.1038/nnano.2009.254

Structures with dimensions of 28 nm have been produced in semiconducting polymers using a thermochemical approach to patterning.


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Article

Monolayer coverage and channel length set the mobility in self-assembled monolayer field-effect transistors pp674 - 680

Simon G. J. Mathijssen, Edsger C. P. Smits, Paul A. van Hal, Harry J. Wondergem, Sergei A. Ponomarenko, Armin Moser, Roland Resel, Peter A. Bobbert, Martijn Kemerink, René A. J. Janssen & Dago M. de Leeuw

doi:10.1038/nnano.2009.201

The mobility of field-effect transistors made from self-assembled monolayers of liquid-crystal molecules depends on channel length only when the monolayer coverage is incomplete.


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From the archives

News & Views:

Monolayers with an IQ

doi:10.1038/nnano.2008.252

News & Views:

Memoirs of a spin

doi:10.1038/nnano.2007.87

News & Views:

Self-assembly is ready to roll

doi:10.1038/nnano.2007.14

News & Views:

Another brick in the wall

doi:10.1038/nnano.2006.154


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