By Ioannis Kymissis

ISBN-10: 0387368337

ISBN-13: 9780387368337

ISBN-10: 0387884963

ISBN-13: 9780387884967

ISBN-10: 0387921338

ISBN-13: 9780387921334

Organic box impression Transistors provides the state-of-the-art in natural box influence transistors (OFETs), with a specific concentrate on the fabrics and methods invaluable for making built-in circuits. The monograph starts off with a few common heritage on natural semiconductors, discusses the kinds of natural semiconductor fabrics compatible for making box impact transistors, the fabrication approaches used to make built-in Circuits, and applicable equipment for size and modeling.

Organic box influence Transistors is written as a uncomplicated advent to the topic for practitioners. it is going to even be of curiosity to researchers searching for references and methods that aren't a part of their topic region or regimen. an artificial natural chemist, for instance, who's drawn to making OFETs may perhaps use the publication extra as a tool layout and characterization reference. a skinny movie processing electric engineer, nevertheless, can be attracted to the ebook to benefit approximately what kinds of electron sporting natural semiconductors will be worthy attempting and studying extra approximately natural semiconductor physics.

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Extra info for Organic Field Effect Transistors: Theory, Fabrication and Characterization

Example text

3 Photolithography 43 virtually all metals (including some which are challenging to evaporate) are easily deposited using the technique. A caveat to using sputtering is that the ionized gas is produced using a plasma, and this plasma can affect the properties of the gate dielectric during the sputtering of the source and drain electrode layer. Oxygen species, intentional or unintentional, in the plasma can cause the formation of potentially undesirable dopant states when sputtering onto a polymeric gate dielectric [54].

2 Basic OFET structure and operation OFETs operate through the creation and elimination of a sheet of charge carriers at the gate dielectric/body interface (this is further discussed in chapter 6). The basic operation is summarized in Fig. 1. In a traditional OFET, the charge carriers travel in the channel parallel to the surface of the gate dielectric. The source and drain electrodes provide access to the channel and are engineered to inject charge well under all bias conditions. It is the gap between the source and drain–the channel–whose conductance is switched, adjusting the conductance of the whole device.

The ability to purify and crystallize material using this class of techniques and readily available equipment is an advantage of small molecule organic semiconductors over polymeric materials. 2 Liquid deposition Liquid deposition processes are an important part of most OFET fabrication processes, either to deposit the active layers, or to manipulate layers deposited through other means. Because the individual molecules in organic solids are weakly bonded, these bonds can be dissociated through exposure to solvents which have a greater affinity for the semiconductor than the semiconductor has to itself.

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Organic Field Effect Transistors: Theory, Fabrication and Characterization by Ioannis Kymissis


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