Organic semiconductors research

Uses Dyes starting material for the preparation of alizarin, phenanthrene, carbazole, 9,10-anthraquinone, 9,10-dihydroanthracene, and insecticides in calico printing as component of smoke screens scintillation counter crystals organic semiconductor research wood preservative. 

Use Dyes, alizarin, phenanthrene, carbazole, anthra-quinone, calico printing, a component of smoke screens, scintillation counting crystals, organic semiconductor research. 

Anthracene is used as an intermediate in dye production, in the manufacture of synthetic fibers, and as a diluent for wood preservatives. It is also used in smoke screens, as scintillation counter crystals, and in organic semiconductor research (Hawley 1987). Anthracene is used to synthesize the chemotherapeutic agent, Amsacrine (Wadler et al. 1986). Acenaphthene is used as a dye intermediate, in the manufacture of pharmaceuticals and plastics, and as an insecticide and fungicide (HSDB 1994 Windholz 1983). 

The efforts made from both experimental and theoretical standpoints will render organic semiconductors even more useful. One of the priorities with organic semiconductor research is to establish current-injected laser oscillation. This is because it is a definite yardstick for measuring the potential of semiconductor materials and devices. 

Semiconductors are materials that are characterized by resistivities iatermediate between those of metals and of iasulators. The study of organic semiconductors has grown from research on conductivity mechanisms and stmcture—property relationships ia soHds to iaclude appHcations-based research on working semiconductor junction devices. Organic materials are now used ia transistors, photochromic devices, and commercially viable light-emitting diodes, and the utility of organic semiconductors continues to iacrease. 

Research spectral sensitization. fluorescence quenching, energy transfer between evened stales. Model membranes to mimic photosvnihctic systems. Modification of solid surluce properties. Examination of lipids, proteins and membrane phenomena organic semiconductors. 

Research on organic semiconductor materials has resulted in remarkable progress and the introduction of material combinations using hosts and single or multiple guests or additional host materials [24-30]. This demand for simultaneous coevaporation or doping is often difficult to achieve in VTE, but easily achieved by OVPD. In the previous section we explained the OVPD process conditions essen-... 

Due to the great potential applications and the widespread interests of OFETs, several review articles with emphasis on different aspects of OFETs have been published [8-13], However, despite the extensive studies and increasing research interests in phthalocyanine as well as porphyrin semiconductors, there is still no review article that systematically generalizes the research achievements in the field of tetrapyrrole organic semiconductors for OFETs. Thus, the present contribution should interest scientists in both industrial and theoretical fields. The main contents of this chapter is as follows Firstly, some basic introduction of the structure and characteristics of OFET is provided then theoretical factors that influence the performance of OFET devices is discussed finally, the progress in phthalocyanine-based OFETs in the order of p-type, n-type, and ambipolar semiconductors is summarized. 

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