The disclosure relates generally to black-to-transmissive electrochromic polymers having superior properties such as absorbance of across the entire visible spectrum and an obvious color change from black to transmissive with an applied voltage. The disclosure also relates to methods for synthesizing or using the same. Further, the disclosure also relates to black-to-transmissive electrochromic polymer thin films comprising the black-to-transmissive electrochromic polymers, as well as electrochromic devices comprising the black-to-transmissive electrochromic polymers or thin films.

The present specification relates to a polymer and an organic solar cell including the same.

The invention relates to novel organic semiconducting compounds containing a polycyclic unit, to methods for their preparation and educts or intermediates used therein, to compositions and formulations containing them, to the use of the compounds and compositions as organic semiconductors in, or for the preparation of, organic electronic (OE) devices, especially organic photovoltaic (OPV) devices, organic photodetectors (OPD), organic field effect transistors (OFET) and organic light emitting diodes (OLED), and to OE devices comprising these compounds or compositions.

Provided are a polymer containing S,S-dioxide-dibenzothiophene in backbone chain with content-adjustable triarylamine end groups, and a preparation method and an application thereof. Triarylamines hole-transport small molecules are introduced into the polymer end group, and a content of the triarylamine end groups can be adjusted by controlling a polymer molecular weight, so that the polymer has better electron-transport and hole-transport capabilities, and charge carrier transport can be balanced, so that more exciton recombination takes place effectively, thus improving the luminous efficiency and stability of the polymer. The polymer is prepared by a Suzuki polymerization reaction and does not require synthesis of new monomers. The polymer material is used for preparing highly effective and stable monolayer devices, and is dissolved directly in an organic solvent, then spin-coated, ink-jet printed, or printed to form a film.

The present specification relates to a composition for an organic material layer of an organic solar cell including an electron donor including a polymer including a first unit represented by Chemical Formula 1, a second unit represented by Chemical Formula 2, and a third unit represented by Chemical Formula 3 or 4; and a non-fullerene-based electron acceptor, and an organic solar cell including the composition.

The present invention generally relates to electrochromic compounds and the uses thereof, particularly to series of fluoroalkyl 3,4-dioxythiophene compounds and their electrochromic polymers or co-polymers. Both compositions and process for manufacturing thereof are in the scope of this invention.

An organic polymer photo device with broadband response and high photo-responsitivity includes an anode terminal with a hole transporting network, and a cathode terminal with an electron transporting network. Positioned in electrical communication with the hole transporting network and the electron transporting network is a blended material that has at least one organic polymer light absorbing component. The organic light absorbing component is configured to have a collection length that is larger than the distance to the nearest electron transporting network and hole transporting network. As such, the blended material forms a light absorbing area that has a dimension that is greater than the collection length of the organic polymer light absorbing component.

A method for preparing polymers by direct heteroarylation or arylation polycondensation is described herein. The method includes preparing a reaction mixture including at least a monomer to be polymerized, a catalyst and a ligand; heating the reaction mixture; and, optionally, end-capping the reaction mixture.

In one aspect, composite polymeric compositions are described herein which, in some embodiments, are thermally responsive to electromagnetic radiation for the destruction of microbes and associated biofilms. Briefly, a composite polymeric composition comprises a polymeric matrix and photo-thermal particles comprising conjugated polymer dispersed in the polymeric matrix, the photo-thermal particles providing sufficient heat to destroy microbial species upon irradiation with infrared radiation.

In one aspect, optoelectronic devices are described herein. In some embodiments, an optoelectronic device described herein comprises a first electrode, a second electrode and a light emitting composite layer disposed between the first electrode and the second electrode. A dielectric layer, in some embodiments, is disposed between the light emitting composite layer and the first electrode and/or second electrode.