Abstract: The present invention provides an organic thin film and an organic transistor having high performance stability and mobility. Specifically, there are provided an organic thin film including a compound containing a charge transporting molecular unit A having a structure of an aromatic fused ring system and a unit B serving as a side chain, the compound having a bilayer structure; an organic semiconductor device including the organic thin film; and an organic transistor including the organic thin film used as an organic semiconductor layer.

Abstract: Provided is a light modulation element which is unlikely to cause photolysis or photodecomposition. Provided is a light modulation element formed of at least one or more transparent substrates and a dielectric layer stacked on at least one transparent substrate, in which the dielectric layer contains from 90 mol % to 100 mol % of an external field-reactive substance, and an energy level (T1) of a lowest triplet excited state of the external field-reactive substance is from 2.6 eV to 5.4 eV. It is preferable that the external field-reactive substance contains from 35 mol % to 85 mol % of an external field-reactive substance (A-1) in which a value of S1-T1 is from 1.0 eV to 2.0 eV, when an energy level of an excited singlet of the external field-reactive substance (A) is set as (S1).

Abstract: The present invention provides an organic thin film and an organic transistor having high performance stability and mobility. Specifically, there are provided an organic thin film including a compound containing a charge transporting molecular unit A having a structure of an aromatic fused ring system and a unit B serving as a side chain, the compound having a bilayer structure; an organic semiconductor device including the organic thin film; and an organic transistor including the organic thin film used as an organic semiconductor layer.

Abstract: Provided is a phthalocyanine compound which is halogen-free and which has a green hue, excellent resistance to organic solvents and acids, and high chroma. Also provided are a metal-free phthalocyanine compound or a metal phthalocyanine compound represented by specified general formula (1-1) or (1-2) and having a N,N?-disubstituted imidazolone structure or piperazinedione structure introduced therein, and a coloring composition including the compound and a synthetic resin. The phthalocyanine compound of the present invention exhibits a clear green color and is halogen-free, and is thus useful as a clear green pigment for coloring materials such as a coating material, plastic, a printing ink, rubber, leather, textile printing, a color filter, a jet ink, a heat transfer ink, etc.

Abstract: Provided is a phthalocyanine compound which is halogen-free and which has a green hue, excellent resistance to organic solvents and acids, and high chroma. Also provided are a metal-free phthalocyanine compound or a metal phthalocyanine compound represented by specified general formula (1-1) or (1-2) and having a N,N?-disubstituted imidazolone structure or piperazinedione structure introduced therein, and a coloring composition including the compound and a synthetic resin. The phthalocyanine compound of the present invention exhibits a clear green color and is halogen-free, and is thus useful as a clear green pigment for coloring materials such as a coating material, plastic, a printing ink, rubber, leather, textile printing, a color filter, a jet ink, a heat transfer ink, etc.