Abstract: The present invention relates to compounds of the formula I wherein X1, X2 are O or C(CN)2; A is selected from wherein, if present, X3, X4 are O or C(CN)2 and m, R4a, R4b, R5a, R5b, R6a, R6b, R6c, R6d, R7a, R7a, R8a, R8b, R9, R10a, R10b, Rm1, Rm2, Rm3 and Rm4 are as defined in the claims and description. The present invention also relates to a method for their preparation and their use as semiconductors, in particular as semiconductors in organic electronics and organic photovoltaics.

Abstract: The present invention provides compounds of formula 1 wherein X1 and X2 are independently from each other O, S or Se, and an electronic device comprising the compounds as semiconducting material.

Abstract: In a process for purifying graphene nanoribbons, a composition comprising graphene nanoribbons GNR1 and at least one contaminant is brought into contact with a liquid medium that includes a dispersant. The graphene nanoribbons GNR1 are dispersed in the liquid medium so as to obtain a liquid dispersion of the graphene nanoribbons GNR1. The liquid dispersion of the graphene nanoribbons GNR1 is subjected to a separation treatment so as to at least partly remove the at least one contaminant, thereby obtaining a liquid dispersion of purified graphene nanoribbons GNR1.

Abstract: Phenacene compounds of formula (I) are disclosed. All the variables in the formula are the same as defined in the description. A thin film semiconductor comprising the above compounds, and a field effect transistor device, a photovoltaic device, an organic light emitting diode device and a unipolar or complementary circuit device comprising the thin film are also disclosed.

Abstract: The present invention provides compounds of formula (1) wherein o is 1, 2 or 3, p is 0, 1 or 2, n is 0, 1 or 2, m is 0, 1 or 2, and A is a mono- or polycyclic ring system, which may contain at least one heteroatom, and an electronic device comprising the compounds as semiconducting material.

Abstract: Phenacene compounds of formula (I) are disclosed. All the variables in the formula are the same as defined in the description. A thin film semiconductor comprising the above compounds, and a field effect transistor device, a photovoltaic device, an organic light emitting diode device and a unipolar or complementary circuit device comprising the thin film are also disclosed.

Abstract: The present invention provides an electronic component or device comprising a gate electrode, a source electrode and a drain electrode, wherein said component or device further comprising an organic semiconducting (OSC) material that is provided between the source and drain electrode, wherein the OSC material comprises (a) a polymer represented by formula: (I), and (b) a compound of formula (II). High quality OFETs can be fabricated by the choice of a semiconductor material, which is comprised of a polymer represented by formula I and (b) a compound of formula II.

Abstract: A memory cell reversibly switchable between different stable electrical resistance states, the memory cell having a first electrode and a second electrode and an active layer arranged between the first and the second electrode, the active layer including a compound represented by general formula , wherein R1 and R2 are independently selected from —H, —(CH2)mCH3, -phenyl, —O—(CH2)mCH3, —O-phenyl, —S(CH2)mCH3, —S-aryl, —NR3R4, —SR3 and -halogen; R1 and R2 may together form a ring; R5 and R6 are independently selected from —H, -alkyl, -aryl and -heteroaryl; m is either 0 or an integer ranging from 1 to 10; n is an integer ranging from 2 to 1000; and a compound represented by general formula wherein R7, R8, R9, R10, R11, R12, R13, and R14 are independently selected from the group consisting of —H, —(CH2)mCH3, -phenyl, —O—(CH2)mCH3, —O-phenyl, —CO(CH2)mCH3, -halogen, —CN and —NO2; R7 and R8 may together form a ring; R8 and R9 may together form a ring; R9 and R10 may together form a ring; R11 and R12 may to

Abstract: An integrated circuit having resistive memory is disclosed. In one embodiment, the memory includes novel memory cells which have two electrodes and a layer arranged in between and including an active material which contains [1,2]dithiolo[4,3-[c]-1,2-dithiol-3,6-dithione, (2,4,7-trinitro-9-fluorenylidene)malonodinitrile and a polymer are disclosed. In one embodiment, a process for the production of the cells according to the invention is provided, as well as the novel use of a composition which can be used as active material for the memory cells.

Abstract: A memory cell is provided which comprises two electrodes and a layer arranged in between and comprising an active material comprising (a) a compound selected from the group consisting of in which R1 and R4, independently of one another, may have the following meaning: —H, -alkyl, -aryl, -heteroaryl, —O-alkyl, —O-aryl, —O-heteroaryl, —SH, —S-alkyl, —S-aryl, —S-heteroaryl, —CO-alkyl, —CO-aryl, —CO-heteroaryl, —CS-alkyl, —CS-aryl, —CS-heteroaryl, -halogen, —CN and/or —NO2, in which R1 and R2, R2 and R3, R3 and R4 together may form a ring, (b) a compound of the general formula II: in which R5 to R7, independently of one another, may have the following meaning: —H, -alkyl, -aryl, -heteroaryl, —O-alkyl, —O-aryl, —O-heteroaryl, —NH2, —N(alkyl)2, —N(aryl)2, —N(heteroaryl)2, —SH, —S-alkyl, —S-aryl, —S-heteroaryl, —CO-alkyl, —CO-aryl, —CO-heteroaryl, —CS-alkyl, —CS-aryl, —CS-heteroaryl, -halogen, —CN and/or —NO2, in which R5 and R6 or R7 and R8 together may form a ring, and optionally (c) a polymer.

Abstract: Memory cells having two electrodes and a layer arranged in between and including an active material which contains hexakisbenzylthiobenzene, dichlorodicyano-p-benzoquinone and optionally a polymer are provided. Furthermore, a process for the production of the cells according to the invention is provided, as well as the novel use of a composition which can be used as active material for the memory cells.

Abstract: Memory cells having two electrodes and a layer arranged in between and including an active material which contains hexakisbenzylthiobenzene, dichlorodicyano-p-benzoquinone and optionally a polymer are provided. Furthermore, a process for the production of the cells according to the invention is provided, as well as the novel use of a composition which can be used as active material for the memory cells.

Abstract: A memory cell is provided which comprises two electrodes and a layer arranged in between and comprising an active material comprising (a) a compound selected from the group consisting of in which R1 and R4, independently of one another, may have the following meaning: —H, -alkyl, -aryl, -heteroaryl, —O-alkyl, —O-aryl, —O-heteroaryl, —SH, —S-alkyl, —S-aryl, —S-heteroaryl, —CO-alkyl, —CO-aryl, —CO-heteroaryl, —CS-alkyl, —CS-aryl, —CS-heteroaryl, -halogen, —CN and/or —NO2, in which R1 and R2, R2 and R3, R3 and R4 together may form a ring, (b) a compound of the general formula II: in which R5 to R7, independently of one another, may have the following meaning: —H, -alkyl, -aryl, -heteroaryl, —O-alkyl, —O-aryl, —O-heteroaryl, —NH2, —N(alkyl)2, —N(aryl)2, —N(heteroaryl)2, —SH, —S-alkyl, —S-aryl, —S-heteroaryl, —CO-alkyl, —CO-aryl, —CO-heteroaryl, —CS-alkyl, —CS-aryl, —CS-heteroaryl, -halogen, —CN and/or —NO2, in which R5 and R6 or R7 and R8 together may form a ring, and optionally (c) a polymer.