Hydro-thermal synthesis preparation method of copper, zinc, tin and sulfur films

A technology of copper-zinc-tin-sulfur and hydrothermal synthesis, which is applied in metal material coating process, coating, liquid chemical plating, etc., can solve the problem of difficulty in ensuring film thickness and chemical composition uniformity, increasing battery manufacturing cost, and device performance problems such as decline, to achieve good market application prospects, high material utilization, and low cost effects

Inactive Publication Date: 2015-04-22
QINGDAO UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its requirement for a high-vacuum environment greatly increases the production cost of the battery, and at the same time, the substances deposited on the vacuum deposition chamber cause waste of raw materials; when preparing large-area films, this method is difficult to ensure the uniformity of film thickness and chemical composition , resulting in device performance degradation

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  • Hydro-thermal synthesis preparation method of copper, zinc, tin and sulfur films
  • Hydro-thermal synthesis preparation method of copper, zinc, tin and sulfur films
  • Hydro-thermal synthesis preparation method of copper, zinc, tin and sulfur films

Examples

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Embodiment 1

[0030] Embodiment 1: The method for hydrothermal synthesis of the copper-zinc-tin-sulfur thin film in this embodiment includes the following steps:

[0031] 1) Prepare CuCl solution with a concentration of 0.1mol / L and ZnSO with 0.05mol / L respectively 4 Solution, 0.05mol / L SnCl 4 ·5H 2 O solution, 1mol / L EDTA-NH 3 Solution and 0.2mol / L C 2 H 5 NS solution.

[0032] 2) Measure 8.0ml of the CuCl solution and 8.0ml of ZnSO with a graduated cylinder 4 Solution and 8.0ml of SnCl 4 ·5H 2 O solution, mix and pour it into a beaker, stir evenly at room temperature to obtain a precursor solution.

[0033] 3) After the precursor solution in step 2) is evenly stirred, measure 1.6ml of EDTA-NH with a graduated cylinder 3 The mixed solution is added to the precursor solution, and then 4.675 g of the complexing agent urea is weighed into the precursor solution and stirred evenly at room temperature.

[0034] 4) After stirring uniformly, adjust the pH value of the mixed solution obtained in step 3) wi...

Embodiment 2

[0039] Embodiment 2: The method for hydrothermally synthesizing a copper-zinc-tin-sulfur film in this embodiment includes the following steps:

[0040] 1) Prepare CuCl solution with a concentration of 0.2mol / L and ZnCl with 0.1mol / L respectively 2 Solution, 0.1mol / L SnCl 4 ·5H 2 O solution, 1mol / L EDTA-NH 3 Solution and 0.4mol / L of H 2 NCSNH 2 Solution.

[0041] 2) Measure 8.0ml CuCl solution and 8.0ml ZnCl with a graduated cylinder 2 Solution and 8.0ml of SnCl 4 ·5H 2 O solution, mix and pour it into a beaker, stir evenly at room temperature to obtain a precursor solution.

[0042] 3) After the precursor solution in step 2) is evenly stirred, measure 3.2ml of EDTA-NH with a graduated cylinder 3 The mixed solution was added to the precursor solution, and then 18.704g of the complexing agent ammonium fluoride was weighed into the precursor solution, and stirred evenly at room temperature.

[0043] 4) After stirring evenly, adjust the pH value of the mixed solution obtained in step 3) wi...

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Abstract

The invention provides a hydro-thermal synthesis preparation method of copper, zinc, tin and sulfur films. The hydro-thermal synthesis preparation method comprises the following steps of: preparing precursor solution through solution containing a copper compound, solution containing a zinc compound, and solution containing a tin compound; adjusting pH of the precursor solution to 2.0 to 4.0; adding solution containing a sulfur compound; and heating in a sealed high-pressure hydrothermal kettle, thus gaining the copper, zinc, tin and sulfur films on the surfaces of different substrates, wherein the annealing treatment can be carried out to further improve the crystallinity of the films. According to the hydro-thermal synthesis preparation method of the copper, zinc, tin and sulfur films, expensive experimental facilities are not required, and the utilization rate of the material is relatively high; in addition, the preparation method of the copper, zinc, tin and sulfur films is simple, the adopted precursor materials are low in cost and bring no pollution, and the preparation method is suitable for mass synthesis; and the prepared copper, zinc, tin and sulfur films are uniform and compact, have high stoichiometric ratio and homogeneity, and can be used as photoelectric materials for a solar cell device. The preparation method is beneficial for reducing the manufacture cost of a cell, saves the raw materials, is applicable to industrial production, and has good market application prospect.

Description

Technical field [0001] The invention belongs to the technical field of photoelectric materials, and specifically relates to a hydrothermal synthesis preparation method of a copper-zinc-tin-sulfur film. Background technique [0002] With the depletion of fossil fuels and the environmental pollution caused by their use, the development of new energy-saving and environmentally friendly energy devices has become an important way to solve energy and environmental problems. Among them, solar cells have a wide range of applications and are clean and non-toxic. The advantages of pollution have become the subject of much attention. With the widespread use of photovoltaic modules, how to improve the photovoltaic conversion efficiency of the battery and reduce the cost is the current research focus of photovoltaic power generation. [0003] Among many solar cells, copper indium gallium sulphur / selenium thin film solar cells (CIGS) have received wide attention because of their high photoelect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/12
Inventor 董立峰隋静曹磊
Owner QINGDAO UNIV OF SCI & TECH
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