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[×ÊÔ´] ¡¶Advanced Materials¡·×îÐÂ×ÛÊö£ºOrganic Semiconductors

¡¶Advanced Materials¡·×îÐÂ×ÛÊö£ºFrom One- to Three-Dimensional Organic Semiconductors

By Jean Roncali,* Philippe Leriche, and Antonio Cravino

Organic semiconductors based on p-conjugated systems are the focus
of considerable interest in the emerging area of soft or flexible photonics
and electronics. Whereas in recent years the performances of devices
such as organic light-emitting diodes (OLEDs), organic field-effect
transistors (OFETs), or solar cells have undergone considerable progress,
a number of technical and fundamental problems related to the low dimensionality of organic semiconductors based on linear p-conjugated systems remain unsatisfactorily resolved.
This low dimensionality results in an anisotropy of the optical and charge-transport properties, which in turn implies a control of the material organization/molecular orientation during or after device fabrication. Such a constraint evidently represents a problem when device fabrication by solution-based processes, such as printing techniques, is envisioned. The aim of this short Review is to illustrate possible alternative strategies based on the development of organic semiconductors with higher dimensionality, capable to exhibit isotropic electronic properties.

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http://www.duote.net/41E1B97448A563BC

[ Last edited by luo.henry on 2008-5-17 at 11:28 ]
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