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Method for preparing copper gallium germanium film by using chloride system

A chloride, copper gallium technology, applied in the field of photoelectric thin film preparation for solar cells, can solve the problems of high preparation cost and complex process route, and achieve the effects of low production cost, low equipment requirements and high production efficiency

Inactive Publication Date: 2018-10-19
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low cost of raw materials, it is a very promising photoelectric thin film material, but the existing process route is complicated and the preparation cost is high, so it is necessary to explore a low-cost preparation process

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] a. Cleaning of glass substrate or silicon substrate: clean the substrate as described above, the size of which is 20mm×20mm×2mm.

[0034] b. 2.0 parts of TeO can be added first 2 Put into 30-120 parts of solvent, wherein the solvent is hydrochloric acid. After its complete reaction, 1.0 parts of CuCl 2 , 1.7 parts GaCl 3 Put in, so that the substances in the solution are evenly mixed.

[0035] c. Drop the above solution onto the glass substrate placed on the homogenizer, and then start the homogenizer. The homogenizer rotates at 200 rpm for 5 seconds and at 3000 rpm for 15 seconds, so that the dripped solution is coated After the cloth is evenly distributed, the substrate is dried, and then the above-mentioned solution is repeatedly dripped and spin-coated, and then dried again. This is repeated 6 times, and a precursor thin film sample with a certain thickness is obtained on the substrate.

[0036] d. Place the precursor thin film sample obtained in step c on a sup...

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PUM

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Abstract

The invention relates to a method for preparing a copper gallium germanium film by using a chloride system and belongs to the technical field of photoelectric film preparation. The method comprises the steps of cleaning a glass substrate, successively placing TeO2, CuCl2 and GaCl3 into a solvent, preparing a clear transparent solution, obtaining a precursor film on a glass piece by using a spin coating method, drying naturally, placing the film into a closable container with hydrazine hydrate such that a precursor film sample is not in contact with the hydrazine hydrate, heating the closable container loaded with the precursor film sample and then taking the sample to be dried, and improving the film quality by adding the number of reactions and the heat treatment process to obtain a copper gallium germanium photoelectric film. According to the method, high temperature and high vacuum conditions are not required, requirements on instruments and equipment are low, the production cost islow, the production efficiency is high, and the operation is easy. The obtained copper gallium germanium photoelectric film has good continuity and uniformity, and a production method with low cost and the realization of industrialization is provided for preparing the high-performance copper gallium germanium photoelectric film.

Description

technical field [0001] The invention belongs to the technical field of photoelectric thin film preparation for solar cells, and in particular relates to a method for preparing a copper gallium tellurium thin film in a chloride system. Background technique [0002] As we all know, the rapid economic development will inevitably bring about a sharp increase in energy consumption. With the rapid development of my country's society and economy in recent years, energy shortage and pollution caused by energy consumption have become prominent problems in the development of domestic society. Therefore, the development and utilization of clean energy is important for environmental protection, sustainable economic development and building a harmonious society. meaning. In order to make full use of solar energy, which is a clean, safe and environmentally friendly renewable resource, the research and application of photoelectric materials have been paid more and more attention in recent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/02H01L31/18
CPCH01L21/02521H01L31/18Y02P70/50
Inventor 刘科高李静许超赵忠新刘宏
Owner SHANDONG JIANZHU UNIV