The present invention relates to nanoparticles of π-conjugated polymers. The present invention also relates to an aqueous composition comprising these polymeric nanoparticles, to processes for making the nanoparticles, and to the use of these nanoparticles in the fabrication of electronic devices and components.

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.

A composition for forming an underlayer film necessary for facilitating alignment of self-assembled film into desired vertical pattern. Composition for forming an underlayer film of self-assembled film including a polymer having unit structure containing aliphatic polycyclic structure of aliphatic polycyclic compound in main chain. The polymer is a polymer having unit structure containing aliphatic polycyclic structure of aliphatic polycyclic compound with aromatic ring structure of aromatic ring-containing compound or polymer chain derived from vinyl group of vinyl group-containing compound in main chain. The polymer has unit structure of Formula (1):
X—Y  Formula (1)
wherein X is single bond, divalent group having vinyl structure as polymer chain, or divalent group having aromatic ring-containing structure as polymer chain, and Y is divalent group having aliphatic polycyclic structure as polymer chain. The aliphatic polycyclic compound is bi- to hexa-cyclic diene compound. The aliphatic polycyclic compound is dicyclopentadiene or norbornadiene.

A polymer includes a first repeating unit and a second repeating unit forming a main chain, the first repeating unit including at least one first conjugated system, and the second repeating unit including at least one second conjugated system and a multiple hydrogen bonding moiety represented by Chemical Formula 1.

Disclosed are conjugated polymers having desirable properties as semiconducting materials. Such polymers are cheap and easy to synthesize, and can exhibit good solubility and great solution processibility, and that enable highly efficient OPVs.

Disclosed is a fluorine-substituted Pi(π)bridge selenide polymer acceptor material, its preparation and application. The selenide polymer acceptor material is named PYSe2FT and is synthesized by Knoevenagel condensation reaction and Still cross-coupling reaction; the material PYSe2FT takes a selenium-substituted core donor unit as a main structure, and combines a difluoro-substituted thiophene π-electronic connection unit, where the selenium-substituted core donor unit and the difluoro-substituted thiophene π-electronic connection unit can effectively regulate and control the molecular energy level, so that molecules generate good accumulation, thus making PYSe-2FT an excellent polymer acceptor material.

Polymers comprising at least one unit of formulae ##STR00001## and compounds of the formulae ##STR00002## wherein, in formulae 1, 1′, 2 and 2′ n is 0, 1, 2, 3 or 4 m is 0, 1, 2, 3 or 4 M1 and M2 are independently of each other an aromatic or heteroaromatic monocyclic or bicyclic ring system; 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.1-100-alkyl, C.sub.2-100-alkenyl, C.sub.2-100-alkynyl, C.sub.5-12-cycloalkyl, C.sub.6-18-aryl, a 5 to 20 membered heteroaryl, C(O)—C.sub.1-100-alkyl, C(O)—C.sub.5-12-cycloalkyl and C(O)—OC.sub.1-100-alkyl. R.sup.2, 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 heteroaryl, OR.sup.21, OC(O)—R.sup.21, C(O)—OR.sup.21, C(O)—R.sup.21, NR.sup.21R.sup.22, NR.sup.21—C(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, ##STR00003##

A polymer containing at least one unit of formula

##STR00001##

is prepared by treating a compound of formula

##STR00002##

wherein Y.sup.2 is I, Br, Cl or O—S(O).sub.2CF.sub.3,
with an S-donor agent, in order to obtain the compound of formula

##STR00003##

wherein Y.sup.2 is as defined for the compound of formula (5).

Disclosed are an organic semiconductor thin film, a manufacturing method thereof, and a thin film transistor and an electronic device including the organic semiconductor thin film. The organic semiconductor thin film includes a matrix. The matrix includes an elastomer and nanoconfined polymer structures embedded in the matrix. The nanoconfined polymer structures form a polymer network. The nanoconfined polymer structures include a conjugation semiconductor polymer. The conjugation semiconductor polymer includes a repeating unit having at least one conjugation system in its main chain. The nanoconfined polymer structures are present in an upper surface layer and a lower surface layer of the organic semiconductor thin film respectively.

The invention relates to novel conjugated polymers containing one or more diindeno-thieno[3,2-b]thiophene based polycyclic repeating units, to methods for their preparation and educts or intermediates used therein, to polymer blends, mixtures and formulations containing them, to the use of the polymers, polymer blends, mixtures and formulations as organic semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices and organic photodetectors (OPD), and to OE, OPV and OPD devices comprising these polymers, polymer blends, mixtures or formulations.