Indacen-4-one derivative having general formula (I) in which: W and W.sub.1, which are the same or different, preferably the same, represent an oxygen atom; a sulfur atom; an NR.sub.3 group in which R.sub.3 represents a hydrogen atom, or is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkyl groups; Z and Y, which are the same or different, preferably the same, represent a nitrogen atom; or a CR.sub.4 group in which R.sub.4 represents a hydrogen atom, or is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted heteroaryl groups, linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkoxyl groups, R.sub.5O[CH.sub.2CH.sub.2O].sub.n polyethyleneoxyl groups in which R.sub.5 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkyl groups, and n is an integer ranging from 1 to 4; R.sub.6OR.sub.7 groups in which R.sub.6 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkylene groups and R.sub.7 represents a hydrogen atom or is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkyl groups, or is selected from R.sub.5[OCH.sub.2CH.sub.2].sub.n polyethyleneoxyl groups in which R.sub.5 has the same meanings as above reported and n is an integer ranging from 1 to 4, COR.sub.8 groups in which R.sub.8 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkyl groups, COOR.sub.9 groups in which R.sub.9 is selected from linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkyl groups, or represent a CHO group, or a cyano group (CN); R.sub.1 and R.sub.2, which are the same or different, preferably the same, are selected from linear or branched C.sub.1-C.sub.10, preferably C.sub.2-C.sub.10, alkyl groups, optionally substituted cycloalkyl groups, optionally substituted aryl groups, optionally substituted heteroaryl groups, linear or branched C.sub.1-C.sub.20, preferably C.sub.2-C.sub.10, alkoxyl groups, R.sub.5O[CH.sub.2CH.sub.2O].sub.n polyethyleneoxyl groups in which R.sub.5 has the same meanings as above reported and n is an integer ranging from 1 to 4, R.sub.6OR.sub.7 groups in which R.sub.6 and R.sub.7 have the same meanings as above reported, COR.sub.8 groups in which R.sub.8 has the same meanings as above reported, COOR.sub.9 groups in which R.sub.9 has the same meanings as above reported, or represent a CHO group, or a cyano group (CN). Said indacen-4-one derivative may advantageously be used in the synthesis of electron-donor polymers, said po

The present invention provides, among other aspects, stabilized chromophoric nanoparticles. In certain embodiments, the chromophoric nanoparticles provided herein are rationally functionalized with a pre-determined number of functional groups. In certain embodiments, the stable chromophoric nanoparticles provided herein are modified with a low density of functional groups. In yet other embodiments, the chromophoric nanoparticles provided herein are conjugated to one or more molecules. Also provided herein are methods for making rationally functionalized chromophoric nanoparticles.

Various photocrosslinkable electrochromic polymers are disclosed. The polymers are suitable for an electrochromic layer of an electrochromic device. The polymers are formed with a two-step synthesis method that includes forming a polymer precursor with one or more chromophore blocks, and mixing the polymer precursor with photocrosslinkable monomer units to form the polymer.

Provided herein are polymers containing chlorinated benzodithiophene units, methods for their preparation and intermediates used therein, the use of formulations containing the same as semiconductors in organic electronic devices, especially in organic photovoltaic and organic field-effect transistor devices, and to organic electronic and organic photovoltaic devices made from these formulations.

The invention provides for polymer structures and their preparation and resulting novel functionalities including open-shell character and high intrinsic conductivity with wide-range tenability. Electrical conductivity can be further modulated by introducing or blending with materials, fillers, dopants, and/or additives. The materials or resultant composites of the invention can be processed by various techniques into different forms to realize multiple applications.

A molecular complex comprising ##STR00001##
wherein X1 and X2 are independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, ester, ketone, amide and aryl groups; R1, R2, R1 and R2 are side chains independently selected from the group consisting of: H, Cl, F, CN, alkyl, alkoxy, alkylthio, ester, ketone and aryl groups; R3 are selected from the group consisting of alkyl group, alkoxy group, aryl groups and combinations thereof; and wherein the thiophene groups are unsymmetrical.

Systems and methods for sorting recyclable items and other materials are provided. In one embodiment, a system for sorting objects comprises: at least one imaging sensor; a controller comprising a processor and memory storage, wherein the controller receives image data captured by the image sensor; and at least one pusher device coupled to the controller, wherein the at least one pusher device is configured to receive an actuation signal from the controller. The processor is configured to detect objects travelling on a conveyor device and recognize at least one target item traveling on a conveyor device by processing the image data and to determine an expected time when the at least one target item will be located within a diversion path of the pusher device. The controller selectively generates the actuation signal based on whether a sensed object detected in the image data comprise the at least one target item.

Polymers comprising at least one unit of formula 1 and compounds of the formula 1 wherein, in formulae 1 and 1 n is 0, 1, 2, 3 or 4 m is 0, 1, 2, 3 or 4 X is at each occurrence selected from the group consisting of O, S, Se or Te, Q is at each occurrence selected from the group consisting of C, Si or Ge R is at each occurrence selected from the group consisting of hydrogen, C.sub.1-30-alkyl, C.sub.2-30-alkenyl, C.sub.2-30-alkynyl, C.sub.5-12-cycloalkyl, C.sub.6-18-aryl, R.sup.2, R.sup.2, R* are at each occurrence independently selected from the group consisting of hydrogen, C.sub.1-30-alkyl, C.sub.2-30-alkenyl, C.sub.2-30-alkynyl, C.sub.5-12-cycloalkyl, C.sub.6-18-aryl, 5 to 20 membered hetero-aryl, OR.sup.21, OC(O)R.sup.21, C(O)OR.sup.21, C(O)R.sup.21, NR.sup.21.sub.R.sup.22, NR.sup.21C(O)R.sup.22, C(O)NR.sup.21R.sup.22, N[C(O)R.sup.21][C(O)R.sup.22], SR.sup.21, halogen, CN, SiR.sup.SisR.sup.SitR.sup.Siu and OH, L.sup.1 and L.sup.2 are independently from each other and at each occurrence selected from the group consisting of C.sub.6-30-arylene, 5 to 30 membered heteroarylene. ##STR00001##

The present invention relates to a polar functional group-partially introduced polymer, a preparation method therefor, and an organic electronic element adopting the same. The organic electronic element of the present invention has excellent photoelectric conversion efficiency and stability and is very advantageous in commercialization, by adopting the polar functional group-partially introduced polymer of the present invention.

A polymer comprising: ##STR00001##
In this polymer R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are independently selected from H, F, Cl, S, CN, or substituted, unsubstituted, straight-chain, branched, or cyclic alkyls ranging from 1 to 100 carbon atoms. The length of the polymer can range with n from about 1 to about 100,000 repeat units.