Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Tin sulfide@niobium disulfide (SnS@NbS2) core-shell heterojunction and preparation method and application thereof

A niobium disulfide and heterojunction technology, applied in chemical instruments and methods, tin compounds, inorganic chemistry, etc., can solve the problem of high cost

Active Publication Date: 2021-05-18
NORTHWESTERN POLYTECHNICAL UNIV +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually people combine semiconductors with noble metals (such as gold (Au) and platinum (Pt), etc.) to build metal / semiconductor heterojunctions to reduce their contact resistance, but this method is costly

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tin sulfide@niobium disulfide (SnS@NbS2) core-shell heterojunction and preparation method and application thereof
  • Tin sulfide@niobium disulfide (SnS@NbS2) core-shell heterojunction and preparation method and application thereof
  • Tin sulfide@niobium disulfide (SnS@NbS2) core-shell heterojunction and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: SnS@NbS 2 Preparation method of core-shell heterogeneity

[0038] Dissolve niobium pentachloride (0.23 mmol × 0.3) and tin tetrachloride pentahydrate (0.23 mmol × 0.7) in 20 ml of oleylamine, and degas at 100 °C for 15 min under an ultra-high-purity argon atmosphere to remove air and impurities while rigorously mixing. Subsequently, the mixture was heated to 300° C., and 8 mmol of carbon disulfide was injected into the solution through a syringe. After 1 hour, the reaction was stopped and the heat source was removed to cool to room temperature. The synthesized solution was washed by adding excess mixture of ethanol and isopropanol (volume ratio 1:3), and then centrifuged in a centrifuge at 8500 rpm for 5 min to isolate the synthesized SnS@NbS 2 Nucleocapsid heterogeneity. The obtained heterojunctions were then dispersed in n-hexane, and the centrifuge tube was sonicated to obtain a macroscopically homogeneous solution. Next, the mixture of excess ethanol...

Embodiment 2

[0040] Example 2: SnS@NbS 2 Preparation method of core-shell heterogeneity

[0041] Dissolve niobium pentachloride (0.23 mmol × 0.2) and tin tetrachloride pentahydrate (0.23 mmol × 0.8) in 20 ml of oleylamine, and degas at 120 °C for 15 min under an ultra-high-purity argon atmosphere to remove air and impurities while rigorously mixing. Subsequently, the mixture was heated to 300° C., and 8 mmol of carbon disulfide was injected into the solution through a syringe. After 1 hour, the reaction was stopped and the heat source was removed to cool to room temperature. The synthesized solution was washed by adding excess mixture of ethanol and isopropanol (volume ratio 1:3), and then centrifuged in a centrifuge at 8500 rpm for 5 min to isolate the synthesized SnS@NbS 2 Core-shell heterojunction. The obtained heterojunctions were then dispersed in n-hexane, and the centrifuge tube was sonicated to obtain a macroscopically homogeneous solution. Next, the mixture of excess ethanol an...

Embodiment 3

[0043] Example 3: SnS@NbS 2 Preparation method of core-shell heterogeneity

[0044] Dissolve niobium pentachloride (0.23 mmol × 0.4) and tin tetrachloride pentahydrate (0.23 mmol × 0.6) in 20 ml of oleylamine, and degas at 100 °C for 15 min under an ultra-high-purity argon atmosphere to remove air and impurities while rigorously mixing. Subsequently, the mixture was heated to 350° C., and 8 mmol of carbon disulfide was injected into the solution through a syringe. After 15 minutes, the reaction was stopped and the heat source was removed to cool to room temperature. The synthesized solution was washed by adding excess mixture of ethanol and isopropanol (volume ratio 1:3), and then centrifuged in a centrifuge at 8500 rpm for 5 min to isolate the synthesized SnS@NbS 2 Nucleocapsid heterogeneity. The obtained heterojunctions were then dispersed in n-hexane, and the centrifuge tube was sonicated to obtain a macroscopically homogeneous solution. Next, the mixture of excess eth...

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

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method and application of a tin sulfide@niobium disulfide (SnS@NbS2) core-shell heterojunction, and belongs to the technical field of functional nano material preparation. In the method, niobium pentachloride, tin tetrachloride pentahydrate and carbon disulfide are used as raw materials, oleylamine is used as a solvent, a reducing agent and a surfactant through a solvothermal method, and the SnS@NbS2 core-shell heterojunction is synthesized; and dispensing an ethanol solution of the heterojunction on the interdigital electrode to prepare the corresponding photoelectric detector.

Description

technical field [0001] The present invention relates to SnS@NbS 2 The preparation method and application of the core-shell heterojunction belong to the technical field of preparation of functional nanometer materials. [0002] technical background [0003] Layered metal chalcogenides (LMCs), a typical class of two-dimensional materials, have attracted extensive attention due to their great potential in next-generation electronics and optoelectronics. Compared with the n-type semiconductor LMCs (such as molybdenum disulfide (MoS 2 ) and tungsten disulfide (WS 2 ), etc.), tin sulfide (SnS) is one of the few natural p-type semiconductors with an indirect band gap of 1.1eV and a direct band gap of 1.3eV. SnS has been extensively studied in recent years due to its low processing cost, non-toxicity, abundant earth reserves, good stability, and excellent electronic, optical, and optoelectronic properties. At present, SnS has been successfully applied in solar cells, batteries, p...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C01G19/00C01G33/00G01J1/42
CPCC01G19/00C01G33/00G01J1/42C01P2004/84C01P2004/03C01P2002/72C01P2006/40C01P2006/60Y02P70/50
Inventor 王志伟王翔黄晓黄维
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com