A chemical method for synthesizing copper-zinc iodide ternary wide bandgap compound semiconductor thin film materials

A thin film material and chemical method technology, applied in the field of material chemistry, can solve problems such as high reaction temperature, large environmental impact, and complicated operation, and achieve the effect of simple reaction device, low price, and simple operation
CN106449367BActive Publication Date: 2019-02-05XUCHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XUCHANG UNIV
Publication Date
2019-02-05

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Abstract

The invention belongs to chemical technical field, in particular to a chemical method for semiconductor film materials of ternary wide bandgap compound of synthesis of copper-zinc iodide. The method is that putting the copper-zinc alloy film into iodine vapor with a temperature of 45 DEG C to 80 DEG C for co-oxidation reaction of the copper-zinc alloy. The reaction time takes 3 to 8 hours. After reacting for certain time, Cu2ZnI4 films can be produced in situ on the surface of substrate, and that is the semiconductor film materials of the synthesis of the copper-zinc iodide. The preparation method does not require organic solvents to participate in the reaction or reaction medium. The crystal is crystallized well. The product can be used directly without complicated processing. The method has the advantages of simple operation, rapid reaction, better environmental protection, low energy consumption, low cost and good reproducibility. In addition, a film can be directly formed on the substrate surface in the method. The material is more beneficial for the application in photoelectric conversion devices.
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Description

Technical field:

[0001] The invention belongs to the technical field of material chemistry, and in particular relates to a chemical method for synthesizing copper-zinc iodide ternary wide bandgap compound semiconductor film materials. Background technique:

[0002] Wide bandgap semiconductors are generally semiconductor materials with a bandgap greater than 2.0eV at room temperature, so they can transmit most of the sunlight and are widely used in the vicinity of optoelectronic devices. In recent years, new solar cells using low-cost and high-efficiency lead halide perovskite materials as light-absorbing layers have developed rapidly, and their photoelectric conversion efficiency has exceeded 20%, which is expected to be applied in solar energy utilization. However, based on lead halide perovskite solar cell devices, it is necessary to use expensive wide bandgap organic compounds (Sprio-MEOTAD, P3HT, etc.) as hole transport layer materials, and the price of these organic com...

Claims

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