Method for preparing ferrous disulfide film by chemical bath deposition and vulcanization

A chemical bath deposition and thin film technology, which is applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problems of difficult control of the chemical composition ratio of the film, the influence of the photoelectric performance of the film, and unfavorable large-scale production. , to achieve the effects of reducing film defects, low requirements for preparation equipment, and reducing the formation of impurity phases

Inactive Publication Date: 2013-02-06
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of these preparation methods have high requirements on equipment, need vacuum, high temperature and other conditions, and the cost of film production is high; and due to the complexity of the reaction, it is difficult to control the chemical composition ratio of the prepared film, resulting in low purity of the film

Method used

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  • Method for preparing ferrous disulfide film by chemical bath deposition and vulcanization
  • Method for preparing ferrous disulfide film by chemical bath deposition and vulcanization
  • Method for preparing ferrous disulfide film by chemical bath deposition and vulcanization

Examples

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Example Embodiment

[0025] Example 1

[0026] a) Pretreatment of the substrate: After the slide glass is fully cleaned in an ultrasonic cleaner with acetone and ethanol for 10 minutes, then ultrasonically cleaned with deionized water for 15 minutes, and then soaked in a hydrochloric acid solution with a concentration of 1mol / L, set aside ;

[0027] b) Add 0.006mol of citric acid into a 100ml beaker, and magnetically stir with 20ml of deionized water until dissolved. After being completely dissolved, add 0.012mol of Fe(NH 4 ) 2 (SO 4 ) 2 ·6H 2 O, continue stirring to obtain clear solution A;

[0028] c) adding concentrated ammonia water dropwise to solution A, adjusting the pH value to 8 to obtain solution B;

[0029] d) Add 0.012mol thioacetamide and 20ml deionized water into a 50ml beaker with magnetic stirring to dissolve, slowly add the prepared thioacetamide solution to solution B, then add deionized water to 60ml, and stir evenly , to obtain a clear and transparent solution C, and mo...

Example Embodiment

[0033] Example 2:

[0034] a) Pretreatment of the substrate: The conductive glass ITO is fully cleaned in an ultrasonic cleaner with acetone and ethanol for 15 minutes, then ultrasonically cleaned with deionized water for 10 minutes, and then soaked in a hydrochloric acid solution with a concentration of 1mol / L. ;

[0035] b) Add 0.01mol of malonic acid into a 100ml beaker, and magnetically stir with 20ml of deionized water until dissolved. After being completely dissolved, add 0.02mol of Fe(NH 4 ) 2 (SO 4 ) 2 ·6H 2 O, continue stirring to obtain clear solution A;

[0036] c) adding concentrated ammonia water dropwise to solution A, adjusting the pH value to 9 to obtain solution B;

[0037] d) Add 0.02mol thioacetamide and 20ml deionized water into a 50ml beaker with magnetic stirring to dissolve, slowly add the prepared thioacetamide solution to solution B, then add deionized water to 60ml, and stir evenly , to obtain a clear and transparent solution C, and move the C...

Example Embodiment

[0041] Example 3:

[0042] a) Pretreatment of the substrate: After the slide glass is fully cleaned in an ultrasonic cleaner with acetone and ethanol for 5 minutes, then ultrasonically cleaned with deionized water for 10 minutes, and then soaked in a hydrochloric acid solution with a concentration of 1mol / L, set aside ;

[0043] b) Add 0.012 mol of citric acid into a 100ml beaker, and magnetically stir with 20ml of deionized water until dissolved. After being completely dissolved, add 0.024mol of Fe(NH 4 ) 2 (SO 4 ) 2 ·6H 2 O, continue stirring to obtain clear solution A;

[0044] c) adding concentrated ammonia water dropwise to solution A, adjusting the pH value to 8.5 to obtain solution B;

[0045] d) Add 0.024mol thioacetamide and 20ml deionized water into a 50ml beaker with magnetic stirring to dissolve, slowly add the prepared thioacetamide solution to solution B, then add deionized water to 60ml, and stir evenly , to obtain a clear and transparent solution C, and...

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Abstract

The invention relates to a method for preparing a ferrous disulfide film by chemical bath deposition and vulcanization. The method comprises the following steps: adopting citric acid or malonic acid as a complex agent; obtaining uniform, compact and high-crystallized precursor films on modified general glass in a water bath environment of less than 100 DEG C; vulcanizing; and quickly cooling to obtain the FeS2 film with the purity of not less than 99%. The citric acid or the malonic acid is adopted as the complex agent for complexing metal ions, so that a large amount of ferrous ions and sulfur ions can be inhibited to be not subjected to homogeneous deposition in a solution during early reaction period, thereby enabling heterogeneous deposition to become a main body and being favorable for film formation. Through the adoption of a water bath heating way, a reaction solution is uniformly heated, and the film statically and slowly grows and is uniform and compact. Through the adoption of a quick cooing way, impurity phases are dynamically reduced to improve the purity of the film. The ferrous disulfide film has no selectivity for a substrate, is synthesized in a low-temperature solution, is good in crystallinity, simple in process and low in cost, and is suitable for large-scale production application.

Description

technical field [0001] The invention relates to a chemical bath deposition and sulfide synthesis of FeS 2 The thin film method belongs to the technical field of preparation of functional thin film materials. Background technique [0002] With the advancement of science and technology and the development of human civilization, primary energy such as coal, oil and natural gas can no longer meet the needs. Moreover, a large amount of harmful gases will be released during the use of primary energy, which will destroy environment for human survival. Therefore, among various renewable energy sinks, solar energy has become the focus of new energy, and one of the main forms of development is to try to effectively convert solar energy into electrical energy for the benefit of mankind. [0003] Solar cells are effective devices for directly converting solar energy into electrical energy, but the rapid development of commercial solar cells still faces some problems that limit their l...

Claims

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Application Information

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IPC IPC(8): C23C18/12
Inventor 蔡舒余其凯靳正国燕子鹏
Owner TIANJIN UNIV
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