摘要:
An electrically conductive liquid crystalline substance represented by the general formula L-S.sub.1 -C.sub.T or L-C.sub.T, wherein L is a residue of a liquid crystalline substance, S.sub.1 is an atom or atomic grouping which becomes a spacer and C.sub.T is a charge-transfer complex, is disclosed. An electrically conductive liquid crystalline polymer having an electrically conductive liquid crystalline substance portion in its side chain is also provided. These electrically conductive liquid crystalline materials are useful in the conventional applications of liquid crystals and in other applications which utilize their electrical conductivity.
摘要:
An electrically conductive liquid crystalline substance represented by the general formula L-S.sub.1 -C.sub.T or L-C.sub.T, wherein L is a residue of a liquid crystalline substance, S.sub.1 is an atom or atomic grouping which becomes a spacer and C.sub.T is a charge-transfer complex, is disclosed. An electrically conductive liquid crystalline polymer having an electrically conductive liquid crystalline substance portion in its side chain is also provided. These electrically conductive liquid crystalline materials are useful in the conventional applications of liquid crystals and in other applications which utilize their electrical conductivity.
摘要:
A light emitting device may include a first electrode on a substrate, a first emission layer on the first electrode, a buffer layer on the first emission layer, a middle electrode on the buffer layer, a second emission layer on the middle electrode, and a second electrode on the second emission layer. The buffer layer may include a material selected from the group consisting of a metal oxide, a polyelectrolyte, and a combination thereof. The first emission layer, buffer layer, middle electrode, and second emission layer may be fabricated using a wet process.
摘要:
An organic electronic device includes an active region polarity definition layer, and a bulk heterojunction active layer formed on the active region polarity definition layer. The bulk heterojunction active layer includes an upper region and a lower region having respective majority carriers localized therein of different polarities.
摘要:
A reagentless, reusable bioelectronic DNA, or other oligonucleotide sequence sensor is disclosed. The sensor includes an oligonucleotide (aptamer) probe tagged with a electroactive, redoxable moiety, self-assembled on or near an electrode. This surface-confined oligonucleotide (aptamer) probe structure undergoes hybridization-induced conformational change in the presence of the target which changes the electron-transfer distance between the redoxable moiety and the electrode thereby providing a detectable signal change. In an alternative embodiment, the target can harbor the redoxable moiety.
摘要:
Organic FETs are produced having high mobilities in the accumulation mode and in the depletion mode. Significantly higher mobility is obtained from FETs in which RR-P3HT film is applied by dip-coating to a thickness of only about 20 Å to 1 μm. It was found that the structural order of the semiconducting polymer at the interface between the semiconducting polymer and the SiO2 gate-insulator is important for achieving high carrier mobility. Heat-treatment under an inert atmosphere also was found to increase the on/off ratio of the FET.
摘要:
Oriented conjugated polymer shaped articles can be formed by the process of (a) providing a carrier solution made up of(i) carrier solvent,(ii) nonconjugated flexible chain carrier polymer, and(iii) conjugated polymer or conjugated polymer precursor;(b) forming this carrier solution, before or after gelling the solution and removing solvent from it, thereby yielding a body having a first shape, and (c) anisotropically physically distorting the first shape of the body to yield the desired shaped article formed with an oriented structure in the carrier polymer and in the conjugated polymer. The orientation of the conjugated polymer leads to anisotropic absorption and photoluminescence properties for the shaped article.
摘要:
Polyanilines are provided that are soluble and that form crystaline solids upon precipitation. The solid polyanilines are electrically conductive, soluble, and can be fabricated into various shaped articles for use in, for example, batteries, electrodes, photovoltaic cells, semiconductor devices and the like.
摘要:
Conjugated polymers are doped with ionic dopant species to a preselected room temperature electrical conductivity ranging from that characteristic of semiconductor behavior to that characteristic of metallic behavior, by means of reversible electrochemical doping procedures. The doping procedures are carried out in an electrochemical cell wherein the polymer to be doped is employed as one or both of the electrodes, and the electrolyte is a compound which is ionizable into the ionic dopant species to a p-type material; or if used as the cathode, becomes doped with a cationic dopant species to an n-type material.
摘要:
A secondary battery comprises at least one electrode having as an active materials a conjugated polymer, the polymer being doped to an electrically conducting state. Particularly, the battery may comprise the polymer as a cathode and a lithium anode.