A dispersion liquid contains a metal oxide particle surface-modified with a silane compound and a silicone compound, when a transmission spectrum of the metal oxide particles that are obtained by vacuum-drying the dispersion liquid is measured in a wavenumber range of 800 cm.sup.−1 or more and 3800 cm.sup.−1 or less with FT-IR, IA/IB≤3.5 is satisfied (IA is a spectrum value at 3,500 cm.sup.−1 and IB is a spectrum value at 1,100 cm.sup.−1), and, when the dispersion liquid and methyl phenyl silicone are mixed such that a mass ratio of a total mass of the metal oxide particles and the surface-modifying material to a mass of methyl phenyl silicone becomes 30:70 and the hydrophobic solvent is removed, a viscosity is 9 Pa.Math.s or less.

There are provided a coating composition being possible to form a cured film which has excellent transparency and weather resistance, and especially hardness. A coating composition obtained by which a silicon-containing substance as a component (M) and a silica colloidal particle having a primary particle diameter of 2 to 80 nm as a component (S) are mixed, and then the component (M) is hydrolyzed, and the resulting aqueous solution is subsequently mixed with a colloidal particle (C) wherein a component (F) is a modified metal oxide colloidal particle (C) having a primary particle diameter of 2 to 100 nm, which includes a metal oxide colloidal particle (A) having a primary particle diameter of 2 to 60 nm as a core, whose surface is coated with a coating (B) formed of an acidic oxide colloidal particle.

There are provided a coating composition being possible to form a cured film which has excellent transparency and weather resistance, and especially hardness. A coating composition obtained by which a silicon-containing substance as a component (M) and a silica colloidal particle having a primary particle diameter of 2 to 80 nm as a component (S) are mixed, and then the component (M) is hydrolyzed, and the resulting aqueous solution is subsequently mixed with a colloidal particle (C) wherein a component (F) is a modified metal oxide colloidal particle (C) having a primary particle diameter of 2 to 100 nm, which includes a metal oxide colloidal particle (A) having a primary particle diameter of 2 to 60 nm as a core, whose surface is coated with a coating (B) formed of an acidic oxide colloidal particle.

There is provided a semiconductor film including an aggregate of semiconductor quantum dots that contain a metal atom and a ligand that is coordinated to the semiconductor quantum dot, in which a half width at half maximum of an exciton absorption peak in optical characteristics of the semiconductor film is 60 nm or less. There are also provided a manufacturing method for a semiconductor film, a photodetector element, and an image sensor.

There is provided a semiconductor film including an aggregate of semiconductor quantum dots that contain a metal atom and a ligand that is coordinated to the semiconductor quantum dot, in which a half width at half maximum of an exciton absorption peak in optical characteristics of the semiconductor film is 60 nm or less. There are also provided a manufacturing method for a semiconductor film, a photodetector element, and an image sensor.

Disclosed herein are homogeneous CQD bulk homojunction solids prepared through a cascade surface modification (CSM) strategy. The CSM includes an initial halogenation step of CQD surfaces to attain an initial sufficient passivation; and a subsequent step that reprograms CQD surfaces with functional ligands to control the doping character and solubility properties of the resulting CQD inks. The resulting p-type and n-type CQDs exhibit a distinct potential difference, which induces a built-in electric field between the constituent classes of CQDs. By controlling the colloidal solubility of the inks, homogeneous CQD bulk homojunction films have been achieved, whereas it is shown that the use of prior ink strategies results in inhomogeneous films as a result of poor miscibility. The homogeneous CQD bulk homojunction films exhibit a 1.5-fold increase in the carrier diffusion length and outperforms previously-reported CQD solar cells, achieving a record PCE of 13.3%.

Disclosed herein are homogeneous CQD bulk homojunction solids prepared through a cascade surface modification (CSM) strategy. The CSM includes an initial halogenation step of CQD surfaces to attain an initial sufficient passivation; and a subsequent step that reprograms CQD surfaces with functional ligands to control the doping character and solubility properties of the resulting CQD inks. The resulting p-type and n-type CQDs exhibit a distinct potential difference, which induces a built-in electric field between the constituent classes of CQDs. By controlling the colloidal solubility of the inks, homogeneous CQD bulk homojunction films have been achieved, whereas it is shown that the use of prior ink strategies results in inhomogeneous films as a result of poor miscibility. The homogeneous CQD bulk homojunction films exhibit a 1.5-fold increase in the carrier diffusion length and outperforms previously-reported CQD solar cells, achieving a record PCE of 13.3%.

A method of processing cathode ray tube (CRT) glass with waste glass into a pozzolanic mixture includes, receiving CRT glass aggregate, pulverizing the CRT glass aggregate forming an intermediate CRT glass product, fine grinding the intermediate CRT glass product into a powder, receiving waste glass, pulverizing the waste glass forming an intermediate waste glass product, fine grinding the intermediate waste glass product into a waste glass powder, and combining the waste glass powder with the CRT glass powder by weight or volume to form the pozzolanic mixture. The pozzolanic mixture may be used in place of Portland cement in a cementitious mixture. Also, a leaded portion of the CRT glass may be used in the cementitious mixture to act as a radiation barrier.

A resin-coated metal powder according to the present invention is obtained by covering at least a part of the surface of a metal powder with a hydrolyzable resin that has an average composition of general formula (1) and a number average molecular weight of from 500 to 100,000; and this resin-coated metal powder exhibits sufficient dispersibility in an aqueous solution, while being stable for a relatively long period of time even in the coexistence of water in an aqueous coating material.

##STR00001##

(In the formula, R.sup.1 represents a linear or branched monovalent hydrocarbon group having from 1 to 10 carbon atoms, said group optionally having a specific substituent such as a hydroxyalkyl group; each of R.sup.3, R.sup.4 and R.sup.5 independently represents a linear or branched monovalent hydrocarbon group having from 1 to 10 carbon atoms; each of R.sup.2 and R.sup.6 independently represents a hydrogen atom or a linear or branched monovalent hydrocarbon group having from 1 to 10 carbon atoms; and a and b represent numbers that satisfy 0a<1, 0<b1 and (a+b)=1.)

There are provided a coating composition being possible to form a cured film which has excellent transparency and weather resistance, and especially hardness. A coating composition obtained by which a silicon-containing substance as a component (M) and a silica colloidal particle having a primary particle diameter of 2 to 80 nm as a component (S) are mixed, and then the component (M) is hydrolyzed, and the resulting aqueous solution is subsequently mixed with a colloidal particle (C) wherein a component (F) is a modified metal oxide colloidal particle (C) having a primary particle diameter of 2 to 100 nm, which includes a metal oxide colloidal particle (A) having a primary particle diameter of 2 to 60 nm as a core, whose surface is coated with a coating (B) formed of an acidic oxide colloidal particle.