a gese 2 Nanocrystal and its preparation method and application

A nanocrystal, temperature reaction technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of harsh reaction conditions, high temperature, high energy consumption, and achieve low reaction temperature and time. Short, easy-to-use effects
CN104445104BInactive Publication Date: 2016-08-24NANJING NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING NORMAL UNIVERSITY
Publication Date
2016-08-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a monoclinic-phase GeSe2 nanocrystalline and a semiconductor material prepared from the monoclinic-phase GeSe2 nanocrystalline. With GeI4 as a germanium source, selenourea as a selenium source and oleylamine as a solvent, the cerebriform ellipsoidal monoclinic-phase GeSe2 nanocrystalline is obtained by use of a one-pot method. According to the preparation method of the monoclinic-phase GeSe2 nanocrystalline, the GeSe2 nanocrystalline uniform in dimension and good in dispersibility is synthesized under normal pressure and at a relatively low temperature; the reaction conditions are mild, the operations are simple, and the nano GeSe2 is synthesized conveniently and quickly. The monoclinic-phase GeSe2 nanocrystalline prepared by use of the preparation method is a novel photoelectrochemical (PEC) active material with excellent properties, and the PEC active material is good in photoresponse signal, good in stability, and has an application prospect in photoelectrochemical biosensor construction.
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Description

technical field

[0001] The invention relates to a semiconductor material, in particular to a monoclinic phase GeSe 2 Nanocrystal and its preparation method, and the application of the semiconductor material in photoelectrochemistry (PEC). Background technique

[0002] With the continuous development and innovation of electroanalytical chemistry, photoelectrochemistry (PEC) has become a novel analytical method with important application prospects due to its detection characteristics such as high sensitivity, low background signal, simple equipment, and easy miniaturization.

[0003] Photoelectric active materials are an important part of building photoelectrochemical biosensors. At present, the commonly used photoelectric active materials mainly include: (1) Inorganic semiconductor nanoparticles, such as TiO 2 , CdS, CdSe, etc.; (2) Organic small molecule materials, including porphyrin and its derivatives, azo dyes, phthalocyanine and chlorophyll, etc.; polymers, such as pol...

Claims

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