Crosslinkable organic semiconductors

Crosslinkable Organic Semiconductors for Use in Organic Light-Emitting Diodes (OLEDs)... 

Most papers on crosslinkable organic semiconductors focus on the insolubility and multilayer capability. There are only few instances where the lithographic re-... 

Abstract. The design and synthesis of new molecular synthons for vapor-phase self-assembled nanodieletrics and silane crosslinkers for crosslinked polymer blend dielectrics is described. These dielectric films exhibit excellent dielectric properties with tunable thicknesses and capacitance values. These new gate dielectric materials are integrated into thin-film transistors based both p- and n-type organic semiconductors. 

CPB Materials. Various types of silane crosslinkers were employed to fabricate crosslinked polymer blend (CPB) dielectrics in this study (Fig. 4). The reactivity of each crosslinker was tested via in situ NMR kinetic studies. The CPB dielectrics were fabricated on various substrates using mixture of polymer and crosslinker solution via spin-coating and gravure-printing. Organic semiconductors and source/ drain electrodes were vacuum-deposited to complete the OFET device. Dielectric and OFET properties were measured under vacuum and ambient as described previously. 

The first example of using the [2+2] cycloaddition for crosslinking of organic semiconductor layers was reported in 1997 by Remmers et al. [10]. It was a derivative of poly-p-phenylene (PP) deposited by the Langmiur-Blodgett (LB) technique (Fig. 9.5(a)). Polarized absorption and fluorescence of the films was reported, but no OLED devices were fabricated. 

Type IV This type is concerned with the physical incorporation of different kinds of metal complexes or metal chelates in linear or crosslinked organic or inorganic macromolecules. The formation and stabilization of metal and semiconductor cluster will be not considered in this review (Figure 4). 

Yoshimoto, N., Hanna, J.I. Preparation of a novel organic semiconductor composite consisting of a liquid crystalline semiconductor and crosslinked polymer and characterization of its charge carrier transport properties. J. Mater. Chem. 13(5), 1004—1010 (2003)... 

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