Preparation method of metal sulfide semiconductor nanocrystalline

A technology of metal sulfides and semiconductors, applied in semiconductor/solid-state device manufacturing, sulfur compounds, nanostructure manufacturing, etc., can solve the problems of metal sulfide semiconductor nanomaterials that have not yet been seen, and achieve easy construction, good crystallinity, and purity high effect
CN1522953AInactive Publication Date: 2004-08-25TONGJI UNIV
0 Cites 17 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2004-08-25
Estimated Expiration
Not applicable Β· inactive patent
Patent Text Reader

Abstract

The method for preparing metal sulfide semiconductor nano crystal by using template includes the following steps: firstly, using collodion cotton liquor and making it into the semi-transparent film which has uniform thickness and can meet designed thickness, size and form as artificial active film template, then using metal ion solution of zinc, cadmium copper, mercury, silver, lead, iron, cobalt and nickel whose concentration is 0.05-0.20 mol / L and ionic mole number ratio is correspondent to product chemical formula and providing the solution of sodium sulfide, ammonium sulfide, potassium sulfide and hydrogen sulfide of sulfur ion, respectively placing them at two sides of artificial active film, reacting for 24-48 hr, under the condition of room temp. and stirring, then centrifugal separating reaction solution, removing clear liquor, successively using acetone and deionized water to wash remained product, naturally-drying so as to obtain the metal sulfide semiconductor nano crystal whose grain size (or diameter) is 20-200 nm.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a preparation technology of metal sulfide semiconductor nanocrystals. The invention belongs to a method for preparing metal sulfide semiconductor nanocrystals by using a template. Background technique

[0002] Metal sulfide semiconductor nanocrystals are semiconductor sulfide (quasi) nanoparticles and (quasi) nanorods with a nanometer (1 billionth of a meter) scale structure system with semiconductor characteristics. This semiconductor sulfide nanomaterial has quantum size effect and surface effect, has excellent optical, electrical, magnetic, catalytic and other properties, and has broad application prospects in electronics, biology, coatings, pharmaceuticals and other industries. Therefore, the large-scale production of metal sulfide semiconductor nanocrystals is of great significance to the development of the above industries.

[0003] At present, among many preparation methods of metal sulfide ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More