Stannite structure Cu2FeSnSe4 powder material and liquid phase preparation method thereof

A kesterite structure and powder material technology, applied in the field of materials for solar photovoltaic cells, can solve the problems of complex element ratio and multi-layer structure, limit the industrialization of CIGS thin film solar cells, etc., and achieve easy control of product properties and low cost. , the effect of mild reaction conditions

Inactive Publication Date: 2016-06-22
CENT SOUTH UNIV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, CIGS thin-film solar cells have the problem of scarcity of indium (In) and gallium (Ga) elements, and have complex element ratios and multi-layer structures, which have strict requirements on process, equipment and technical difficulty, which limit CIGS thin-film solar cells. Industrialization of solar cells

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
  • Stannite structure Cu2FeSnSe4 powder material and liquid phase preparation method thereof
  • Stannite structure Cu2FeSnSe4 powder material and liquid phase preparation method thereof
  • Stannite structure Cu2FeSnSe4 powder material and liquid phase preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 4mmolCuCl 2 2H 2 O, 2 mmol FeCl 3 ·6H 2 O, 2mmolSnCl 4 ·5H 2 0, 8mmol selenium powder is put into a round-bottomed three-necked flask, add triethylenetetramine 30ml, leave it for 3-5 minutes, obtain a uniform light blue solution, feed nitrogen to do protective gas, and carry out stirring and condensing reflux, The round-bottomed three-neck flask was heated to 230°C in a constant temperature oil bath and kept for 4 hours, then cooled to room temperature naturally, washed with absolute ethanol and deionized water for 5 times, then filtered, and placed in a dry box at 90°C ℃ dried for 2h to obtain a black solid.

Embodiment 2

[0027] Weigh 4mmolCuCl 2 2H 2 O, 2 mmol FeCl 3 ·6H 2 O, 2mmolSnCl 4 ·5H 2 0, 8mmol selenium powder is put into a round-bottomed three-necked flask, add triethylenetetramine 30ml, leave it for 3-5 minutes, obtain a uniform light blue solution, feed nitrogen to do protective gas, and carry out stirring and condensing reflux, The three-necked round-bottom flask was heated to 200°C in a constant temperature oil bath, and kept for 2 hours, then cooled to room temperature naturally, washed with absolute ethanol and deionized water for 3 times, then filtered, and placed in a dry box for 60 It was dried at ℃ for 6h to obtain a black solid.

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 kesterite structure Cu for solar photovoltaic cells 2 FeSnSe 4 A powder material and a liquid phase preparation method thereof, comprising the steps of: making the raw material CuCl 2 2H 2 O, FeCl 3 ·6H 2 O, SnCl 4 ·5H 2 O. The selenium powder is weighed by molar ratio and put into a three-necked round-bottomed flask for mixing, and then an organic solvent triethylenetetramine solution is added to obtain a uniform light blue solution; nitrogen is used as a protective gas and placed in a constant temperature oil bath Heated to 200-230°C in medium temperature and kept for 0.5-12 hours, then cooled to room temperature naturally; washed with absolute ethanol and distilled water in sequence, then filtered and dried to obtain a black powder. The kesterite structure Cu 2 FeSnSe 4 The liquid-phase preparation method of powder materials is green and pollution-free, the reaction time is short, the required temperature is low, the operation is simple, the cost is low, and it is suitable for Cu 2 FeSnSe 4 Powder materials are used in the industrialization of photovoltaic cell absorber layers.

Description

technical field [0001] The invention belongs to the technical field of materials for solar photovoltaic cells, in particular to a kesterite structure Cu 2 FeSnSe 4 Powder material and liquid phase preparation method thereof, the kesterite structure Cu 2 FeSnSe 4 Powder material applied to Cu 2 FeSnSe 4 Thin-film solar cell absorber layer. Background technique [0002] With the gradual depletion of non-renewable resources, the energy crisis and the ensuing environmental pollution are becoming more and more serious. As a clean renewable energy source, solar energy is non-toxic, harmless and non-polluting, and it is the best solution for people to solve energy and environmental problems. good choice. In the process of industrialization today, photovoltaic modules have been widely used, and the process route is relatively mature. The main problems of current photovoltaic power generation are focused on improving the photoelectric conversion efficiency of solar cells and re...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C01B19/00
CPCC01B19/002C01P2002/72C01P2002/82
Inventor 周继承胡瑶陈星刘涵坚王云云
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap