Organic field-effect transistors structure

As aheady mentioned above, in the present book the results obtained during six years of research within the framework of a national focus program entitled Organic field effect transistors Structural and dynamic characteristics are presented. We have augmented the book with two contributions fi om compa-... 

Figure 5 (a) Schematic organic field-effect transistor structure, (b) jr-stacking fluorinated perylene dicarboximide, (c) donor-acceptor... 

Short intramolecular contacts between chalcogens and other chalcogens or other heteroatoms have been shown to influence molecular geometry, particularly planarity, in many structures of electroactive materials. Hence the position of the chalcogen atom in the material can profoundly affect its properties. For example Crouch et al 2 report the X-ray crystal structure of compound 24 (Figure 10), a candidate for an organic field-effect transistor, showing the effect of intramolecular S- F close contacts (in tandem with H F contacts) on the planarity of the molecule in the solid state. Note also the... 

When a third electrode is added to the structure shown in Fig. 8.12a, below the substrate, it creates an electric field in the insulating substrate, which is perpendicular to the path of the current between the two contacts to the selective layer. Such a structure became known as the Organic Field-Effect Transistor (OFET). It is discussed here and not in Chapter 6 because it belongs to the family of organic chemiresistors. 

Fig. 16 Structures of crystalline fluorene co-oligomers used in organic field effect transistors (OFETs)...

Assembly, Structure, and Performance of an Ultra-Thin Film Organic Field-Effect Transistor (OFET) Based on Substituted Oligothiophenes... 

Abstract. Pentacene organic field effect transistors (OFETs) electrical and structural properties have already been analysed from the point of view of different gate dielectric and growth conditions utilization. The AFM and micro Raman investigations show that the first organic monolayer at the pentacene/dielectric interface are essential determinants of carrier transport phenomena and achievable drain current of pentacene OFETs. 

Mas-Torrent, M. et ah. Correlation between crystal structure and mobihty in organic field-effect transistors based on single crystals of tetrathiafulvalene derivatives, J. Am. Chem. Soc., 126, 8546, 2004. 

Zielke, D. et al., Polymer-based organic field-effect transistor using offset printed source/drain structures, A/)/)/. Phys. Lett. 87 (12), 123508, 2005. 

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