Organic Field Effect Transistors FETs

1 Poly(atylene vinylene)s - Synthesis and Applications in Semiconductor Devices 

A drawback of the Wessling methodology, however, is that trace amounts of acid catalysts are required to completely eliminate the methoxy groups. A conse- 

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A Stable Class of Low-Band-Gap Materials 24 Organic Field Effect Transistors (FETs) 25 Synthesis 26 Aldol Route 27... 

An organic field-effect transistor (FET) consists of a number of discrete layers, formed from insulating, semiconductor or electrically conducting material (Fig. 13.1). It can roughly be considered as a parallel plate capacitor, where one conducting electrode, the gate, is electrically insulated from the other electrode, which is... 

A new class of semiconductors for organic field-effect transistors (FET) has been developed and studied. Thus metalation of the 1,4-dibromobenzene derivative 141, followed by Introduction of the appropriate chalcogens gave the fused systems 142, which displayed promising FET performances, in particular the selenophene derivative <04JA5084>. 

The field known as organic or plastic electronics is centered on field effect transistor (FET)-based circuits mounted on large-area and/or flexible substrates. When the semiconductor is organic, the device is referred to as an organic field-effect transistor (OFET). Work on OFET has been extensively reviewed, most notably and comprehensively in Chemistry of Materials and Journal of Materials Research special issues, to which the one of us has contributed three articles [1-3]. 

The construction of well-ordered supramolecular architectures in which Pcs or Pc-analogs are organized across multiple length scales is highly desirable, as it opens up the possibility of using these macrocycles for relevant technological applications such as field-effect-transistors (FETs), gas sensors, or photovoltaic cells, to mention a few. 

Keywords Field effect transistors (FETs) Organic semiconductor Phthalocyanine Porphyrin Tetrapyrrole... 

Along these lines, we want to highlight the recent advances that have been made in the synthesis and characterization of poly(2,7-carbazole)s and related polymers. The synthesis of ladder-type derivatives with extended n systems like indolo[3,2-fr] carbazoles, diindolo[ 3,2-fr 2, 3 -fz ] carbazoles, and bisindenocarbazoles will also be presented. The structure-property relationships of all these materials will be discussed as well as their utilization as active layers in several organic electronic devices, such as light-emitting diodes (LEDs), field-effect transistors (FETs), photovoltaic cells (PCs), and thermoelectric devices (TDs). 

Over the last two decades the charge carrier mobilities of organic materials have shown a rather rapid increase today organic field effect transistors can be built with performances [14, 15] that can compete with FETs based on polycrystalline silicon [16]. 

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