An organic compound comprising: ##STR00001## In this organic compound, W is selected from the group consisting of: S, Se, O, and N-Q; and Q is selected from the group consisting of: a straight-chain or branched carbyl, silyl, or hydrocarbyl, a branched or cyclic alkyl with 1 to 30 atoms, a fused substituted aromatic ring, and a fused unsubstituted aromatic ring. Additionally, in this organic compound Ar.sub.1 and Ar.sub.2 are independently selected from the group selected from: H, an aryl group, and a heteroaryl group.

An imaging device includes pixels. Each of the pixels includes a first photoelectric conversion layer that converts light into first electric charge, a first pixel electrode that collects the first electric charge, a second photoelectric conversion layer that is arranged above the first photoelectric conversion layer and that converts light into second electric charge, and a second pixel electrode that collects the second electric charge. The area of the first pixel electrode is smaller than the area of the second pixel electrode.

An imaging device includes pixels. Each of the pixels includes a first photoelectric conversion layer, a first pixel electrode, a second photoelectric conversion layer, a second pixel electrode, a third photoelectric conversion layer, a third pixel electrode, a first counter electrode, and a second counter electrode. The first pixel electrode, the first photoelectric conversion layer, the first counter electrode, the second photoelectric conversion layer, the second pixel electrode, the second counter electrode, the third photoelectric conversion layer, and the third pixel electrode are arranged in this order.

The present invention relates to an unsymmetrical squaraine dye of formula (I) and process for the preparation thereof. Further, the present invention relates to an electronic device with an enhanced device efficiency containing a dye of formula (I) co-sensitized with a sqaurine dye.

##STR00001##

The present invention relates to formulations comprising at least one organic semiconductor and at least one organic solvent, characterized in that the formulation contains less than 100 ppm of phenole type impurities, to their use for the preparation of electronic devices, to methods for preparing electronic or optoelectronic devices using the formulations of the present invention, and to electronic or optoelectronic devices prepared from such methods and formulations.

Provided are a compound having an excellent semiconductor property and a method for producing the compound, an intermediate of the compound and a method for producing the intermediate, and an organic semiconductor material and an organic semiconductor device each obtained with use of the organic semiconductor material.

A compound represented by general formula (2):

##STR00001## where: A.sup.1 and A.sup.2 are CM.sup.1 or N, and M.sup.1 is H or the like; J.sup.1 and J.sup.2 are each independently a skeleton giving an electron donating property or an electron accepting property; and X.sup.1 and X.sup.2 are

##STR00002## where: M.sup.2 to M.sup.4 are H or the like, and M.sup.3 and M.sup.4 may be bonded to each other to form a ring.

A method of forming lead halide perovskite crystals in a solvent. The perovskite is form by solution processing of an organic and inorganic precursor in a polar protic solvent.

Disclosed herein are metal compounds useful in devices, such as, for example, OLEDs.

The organic semiconductor polymers relate to polymers containing an indolo-naphthyridine-6,13-dione thiophene (INDT) chromophore. The organic semiconductor polymers are formed by polymerizing INDT monomer with thiophene to obtain a conjugated polymer of the chromophore linked by thiophene monomers (INDT-T), with phenyl to obtain a conjugated polymer of the chromophore linked by phenyl monomers (INDT-P), with selenophene to obtain a conjugated polymer of the chromophore linked by selenophene monomers (INDT-S), or with benzothiadazole to obtain a conjugated polymer of the chromophore linked by benzothiadazole monomers (INDT-BT).

According to an aspect, a detection device includes: a substrate; an anode electrode provided on the substrate; a cathode electrode that is provided on the same layer as that of the anode electrode and is adjacent to the anode electrode; and an organic semiconductor layer that has a structure in which a p-type semiconductor layer and an n-type semiconductor layer coexist and that is provided so as to cover the anode electrode and the cathode electrode.