The present disclosure provides a method for preparing a vesicle, a hollow nanostructure, and a method for preparing the same. The preparation method of the vesicle includes: mixing and evenly stirring an aqueous solution of cetyl trimethyl ammonium bromide and an aqueous solution of tetraphenylethylene-bisphenol A; and allowing a stirred aqueous solution including cetyl trimethyl ammonium bromide and tetraphenylethylene-bisphenol A to stand for a first preset period to obtain an aggregate vesicle of cetyl trimethyl ammonium bromide and tetraphenylethylene-bisphenol A.

The present disclosure provides a method for preparing a vesicle, a hollow nanostructure, and a method for preparing the same. The preparation method of the vesicle includes: mixing and evenly stirring an aqueous solution of cetyl trimethyl ammonium bromide and an aqueous solution of tetraphenylethylene-bisphenol A; and allowing a stirred aqueous solution including cetyl trimethyl ammonium bromide and tetraphenylethylene-bisphenol A to stand for a first preset period to obtain an aggregate vesicle of cetyl trimethyl ammonium bromide and tetraphenylethylene-bisphenol A.

The present disclosure is a photoelectric conversion element including: a photoelectric conversion layer 5 including a first quantum dot 4a and a second quantum dot 4b, a ratio X of the number of heavy metal atoms to the number of oxygen group atoms is less than 2 on a surface of the nanoparticle of the first quantum dot 4a, the ratio X is greater than or equal to 2 on a surface of the nanoparticle of the second quantum dot 4b, and Equation (1) is satisfied:

0.3<N(1),

where N denotes a ratio of the number of second quantum dots to the number of first quantum dots.

Disclosed is a plurality of metal chalcogenide nanocrystals coated with multiple organic and inorganic ligands; wherein the metal is selected from Hg, Pb, Sn, Cd, Bi, Sb or a mixture thereof; and the chalcogen is selected from S, Se, Te or a mixture thereof; wherein the multiple inorganic ligands includes at least one inorganic ligands are selected from S.sup.2, HS.sup., Se.sup.2, Te.sup.2, OH.sup., BF.sub.4.sup., PF.sub.6.sup., Cl.sup., Br.sup., I.sup., As.sub.2Se.sub.3, Sb.sub.2S.sub.3, Sb.sub.2Te.sub.3, Sb.sub.2Se.sub.3, As.sub.2S.sub.3 or a mixture thereof; and wherein the absorption of the CH bonds of the organic ligands relative to the absorption of metal chalcogenide nanocrystals is lower than 50%, preferably lower than 20%.

Disclosed is a plurality of metal chalcogenide nanocrystals coated with multiple organic and inorganic ligands; wherein the metal is selected from Hg, Pb, Sn, Cd, Bi, Sb or a mixture thereof; and the chalcogen is selected from S, Se, Te or a mixture thereof; wherein the multiple inorganic ligands includes at least one inorganic ligands are selected from S.sup.2, HS.sup., Se.sup.2, Te.sup.2, OH.sup., BF.sub.4.sup., PF.sub.6.sup., Cl.sup., Br.sup., I.sup., As.sub.2Se.sub.3, Sb.sub.2S.sub.3, Sb.sub.2Te.sub.3, Sb.sub.2Se.sub.3, As.sub.2S.sub.3 or a mixture thereof; and wherein the absorption of the CH bonds of the organic ligands relative to the absorption of metal chalcogenide nanocrystals is lower than 50%, preferably lower than 20%.

This present disclosure provides a core-shell quantum dot, a preparation method thereof, and a light-emitting device containing the same. The core of the core-shell quantum dot is CdSe.sub.XS.sub.(1-X), and the quantum dot shells include a first shell and a second shell, the first shell being selected from one or more of ZnSe, ZnSe.sub.YS.sub.(1-Y) and Cd.sub.(Z)Zn.sub.(1-Z)S, the second shell covering the first shell being one of Cd.sub.(Z)Zn.sub.(1-Z)S and ZnS, the maximum emission peak of the core-shell quantum dot is less than or equal to 480 nm, 0<X<1, 0<Y<1, 0<Z<1. The CdSe.sub.XS.sub.(1-X) core has a smaller bandgap and a shallower HOMO energy level, making hole injection easier.

Methods of synthesizing Bi.sub.2S.sub.3CdS particles in the form of spheres as well as properties of these Bi.sub.2S.sub.3CdS particles are described. Methods of photocatalytic degradation of organic pollutants employing these Bi.sub.2S.sub.3CdS particles and methods of preventing or reducing microbial growth on a surface by applying these Bi.sub.2S.sub.3CdS particles in the form of a solution or an antimicrobial product onto the surface are also specified.

Methods of synthesizing Bi.sub.2S.sub.3CdS particles in the form of spheres as well as properties of these Bi.sub.2S.sub.3CdS particles are described. Methods of photocatalytic degradation of organic pollutants employing these Bi.sub.2S.sub.3CdS particles and methods of preventing or reducing microbial growth on a surface by applying these Bi.sub.2S.sub.3CdS particles in the form of a solution or an antimicrobial product onto the surface are also specified.

Methods of synthesizing Bi.sub.2S.sub.3CdS particles in the form of spheres as well as properties of these Bi.sub.2S.sub.3CdS particles are described. Methods of photocatalytic degradation of organic pollutants employing these Bi.sub.2S.sub.3CdS particles and methods of preventing or reducing microbial growth on a surface by applying these Bi.sub.2S.sub.3CdS particles in the form of a solution or an antimicrobial product onto the surface are also specified.

Methods of synthesizing Bi.sub.2S.sub.3CdS particles in the form of spheres as well as properties of these Bi.sub.2S.sub.3CdS particles are described. Methods of photocatalytic degradation of organic pollutants employing these Bi.sub.2S.sub.3CdS particles and methods of preventing or reducing microbial growth on a surface by applying these Bi.sub.2S.sub.3CdS particles in the form of a solution or an antimicrobial product onto the surface are also specified.