摘要:
An electrochemical formulation has an active dye. An organic electrochromic switchable electronic component of high switching speed is made using the dye. The component is used to make electrochromic displays. The dye has substituents limiting or preventing a π-merisation of the aromatic moieties.
摘要:
The invention relates to luminescent compounds with semi-conducting properties, as well as their production and their use in organic light-emitting diodes (OLEDs). The compounds are copolymers comprising a metal complex with a central atom from subgroup 8 of the periodic table of elements.
摘要:
The invention relates to material systems wherein electrochemical and/or photochemical parallel reactions are completely avoided by stabilising structural modifications, or repressed by orders of magnitude as a result of the structural modifications. The invention also relates to polymer 4,4′-bipyridinium structures, to formulations based on the structures and used for electrochromic active layers, and to the use of 4,4′-bipyridinium structures for producing organic electrochromic displays.
摘要:
An electrochemical formulation has an active dye. An organic electrochromic switchable electronic component of high switching speed is made using the dye. The component is used to make electrochromic displays. The dye has substituents limiting or preventing a π-merisation of the aromatic moieties.
摘要:
An organically based electrochromic component, e.g. for the production of displays and/or state indicators produces at least two colors. For the first time, two colors can be switched according to the voltage by using a dye system of 4,4′-bipyridinium salts.
摘要:
Formulations are used in organically based electrochromic components, e.g. for producing displays and/or state indicators having a longer service life. The service life is increased by end-capping the 4,4′-bipyridinium salt.
摘要:
An organically based electrochromic component, e.g. for the production of displays and/or state indicators produces at least two colors. For the first time, two colors can be switched according to the voltage by using a dye system of 4,4′-bipyridinium salts.
摘要:
Formulations are used in organically based electrochromic components, e.g. for producing displays and/or state indicators having a longer service life. The service life is increased by end-capping the 4,4′-bipyridinium salt.
摘要:
Electrochemically active formulations may be used for flashing electrochromic displays, in particular for those that in addition to blinking can switch on a permanent symbol with the blinking display. The formulations contain at least two chemically different dye systems. The formulations provide a first dye system that is reversibly switchable at a low voltage, hence suitable for blinking representation of symbols. A second dye system is activated at a higher voltage and is suitable for permanent display of symbols due to the bistability or irreversibility thereof.
摘要:
Formulations can be used in organically based electrochromic components, such as for the production of state indicators, the activated state of which is maintained for as long as possible without an electric current. Organically based electrochromic formulations contain one or more optionally cathodically (coloring) activatable electrochromic coloring systems, as well as an anodically activatable antagonist formed of an amine which dimerizes to a hydrazinium salt by releasing an electron. Titanium dioxide is introduced as an image background (maximum opacity), and additionally a dispersant is introduced which can be crosslinked or partly crosslinked.