Abstract: The present invention provides stock solutions for production of nonlinear-optical materials using a wet coating method. In particular, the invention provides a stock solution containing a nonlinear-optically active organic compound, which is a push-pull ?-conjugated compound having a particular chemical structure, having one or more cross-linkable functional groups. In addition, the invention provides a stock solution comprising a nonlinear-optically active organic compound having at least a certain chemical structure and a matrix-forming compound having one or more cross-linkable functional groups. Further, the invention provides a nonlinear-optical material and a nonlinear-optical device, both prepared by using the stock solutions.

Abstract: The present invention provides an organic nonlinear optical material including an organic compound having nonlinear optical activity dispersed in or bonded to a polymer binder, wherein the material contains a tertiary amine derivative represented by the following formula (1) as the organic compound having nonlinear optical activity, and an organic nonlinear optical element using the same. In the formula, Z1 to Z3 are independently aromatic groups optionally having a substituent; L is a ? conjugated group optionally having a substituent; A is a ? conjugated electron-attractive group which includes a ring structure optionally having a substituent; m denotes 0 or 1; a ? conjugated system denoted by Z3-Lm has, from one terminal thereof to the other terminal, five or more unsaturated bonds which form one conjugated system; and at least two of Z1 to Z3, L and A may be connected so as to form at least one ring structure.

Abstract: The present invention provides an organic nonlinear optical material including an organic compound having nonlinear optical activity dispersed in or bonded to a polymer binder, wherein the material contains a tertiary amine derivative represented by the following formula (1) as the organic compound having nonlinear optical activity, and an organic nonlinear optical element using the same. In the formula, Z1 to Z3 are independently aromatic groups optionally having a substituent; L is a ? conjugated group optionally having a substituent; A is a ? conjugated electron-attractive group which includes a ring structure optionally having a substituent; m denotes 0 or 1; a ? conjugated system denoted by Z3-Lm has, from one terminal thereof to the other terminal, five or more unsaturated bonds which form one conjugated system; and at least two of Z1 to Z3, L and A may be connected so as to form at least one ring structure.

Abstract: The present invention provides stock solutions for production of nonlinear-optical materials using a wet coating method. In particular, the invention provides a stock solution containing a nonlinear-optically active organic compound, which is a push-pull ?-conjugated compound having a particular chemical structure, having one or more cross-linkable functional groups. In addition, the invention provides a stock solution comprising a nonlinear-optically active organic compound having at least a certain chemical structure and a matrix-forming compound having one or more cross-linkable functional groups. Further, the invention provides a nonlinear-optical material and a nonlinear-optical device, both prepared by using the stock solutions.

Abstract: A semiconductor device having laminated successively a porous semiconductor layer, an inorganic semiconductor layer, and optionally an organic substance layer formed therebetween is disclosed. The semiconductor device is produced by immersing a porous semiconductor layer or a semiconductor layer having an organic substance layer on the surface thereof in a solution containing the elements constituting an inorganic semiconductor or compounds of the elements and forming the inorganic semiconductor layer on the porous semiconductor layer or the organic substance layer in the solution.

Abstract: A photoelectric conversion element responsive to a desired conversion efficiency is provided. A photoelectric conversion element including a transparent electrode including a light-receiving face, a photoelectric conversion layer, and a counter electrode is provided, in which a thickness L (m) of the transparent electrode satisfies an equation (1) 1.2×10−2×&rgr;≦L≦4.6/ƒ  (1) where &rgr; represents a resistivity (&OHgr;m), and f represents an effective photon flux density loss coefficient (1/m).

Abstract: Disclosed are a photo-semiconductive electrode that has a high light-to-electricity conversion efficiency and excellent stability and can be prepared economically and easily, and a photo-electric cell using the photo-semiconductive electrode. The photo-electric cell comprises a photo-semiconductive electrode having an electroconductive base and a light-to-electricity conversion layer formed thereon, and a counter electrode, such that the photo-semiconductive electrode and the counter electrode contact an electrolyte, wherein the light-to-electricity conversion layer holds an organic pigment. In the photo-electric cell, the photo-semiconductive electrode and the counter electrode are used integrally and disposed so that these electrodes contact the electrolyte. The organic pigment suited for use in the layer is selected from the group consisting of: phthalocyanine pigment such as titanyl phthalocyanine, chlorogallium phthalocyanine and hydroxygallium phthalocyanine; and naphthalocyanine pigments.