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A kind of preparation method of high light absorbing rate solar absorbing material

A technology of solar energy absorption and high light absorption, applied in the field of solar cells, can solve the problems of complex preparation process of ion implantation method, limited industrial application, limited working distance, etc., and achieve good bonding effect, ensure stability, and increase the effect of content.

Active Publication Date: 2018-07-27
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the laser annealing method is only applicable to the surface layer, the action distance is limited (only about tens of nanometers), and its cost is relatively high; while the preparation process of the ion implantation method is complicated, and it is difficult to carry out large-scale production, which limits its industrial application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of a high-absorbance solar energy absorbing material, the steps are as follows:

[0032] Step 1, add silicate, titanium source, tungsten oxide, and additives into the reaction kettle, and add solvent to carry out reflux reaction for 3 hours, wherein the reflux flow rate is 10mL / min, and the reflux reaction temperature is 50°C. During the reflux process Use water to condense and cool down;

[0033] Step 2, cool naturally after reflux, and then add a stabilizing solution for ultrasonic reaction for 10 minutes, wherein the ultrasonic frequency is 0.1MHz, and water cooling is used to cool down during the ultrasonic process;

[0034] Step 3, after natural cooling, at room temperature, nitrogen gas was introduced at a rate of 20 mL / min for an aeration reaction for 1 h;

[0035] Step 4, adding silicone resin, and carrying out micro-boiling reaction in a full-immersion water bath at 90°C for 2 hours;

[0036] Step 5: Perform high-temperature and high-pres...

Embodiment 2

[0039] Step 1, add silicate, titanium source, tungsten oxide, and additives into the reaction kettle, and add solvent to carry out reflux reaction for 5 hours, wherein the reflux flow rate is 15mL / min, and the reflux reaction temperature is 70°C. During the reflux process Use water to condense and cool down;

[0040] Step 2, cool naturally after reflux, and then add a stabilizing solution for ultrasonic reaction for 30 minutes, wherein the ultrasonic frequency is 1.1MHz, and water cooling is used to cool down during the ultrasonic process;

[0041] Step 3, after natural cooling, at room temperature, nitrogen gas was introduced at a rate of 35 mL / min for an aeration reaction for 2 hours;

[0042] Step 4, add silicone resin, and carry out micro-boiling reaction in a full-immersion water bath at 95°C for 3 hours;

[0043] Step 5: Perform high-temperature and high-pressure reaction at 150° C. and 13 MPa for 2 hours, and then cool naturally to room temperature to obtain a solar ab...

Embodiment 3

[0046] A kind of solar absorbing material with high light absorption rate, the steps of its preparation method are as follows:

[0047] Step 1, add silicate, titanium source, tungsten oxide, and additives into the reaction kettle, and add solvent for reflux reaction for 4 hours, wherein the reflux flow rate is 13mL / min, and the reflux reaction temperature is 60°C. During the reflux process Use water to condense and cool down;

[0048] Step 2, cool naturally after reflux, and then add a stabilizing solution for ultrasonic reaction for 20 minutes, wherein the ultrasonic frequency is 0.7MHz, and water cooling is used to cool down during the ultrasonic process;

[0049]Step 3, after natural cooling, nitrogen gas was introduced at a rate of 28 mL / min at room temperature for an aeration reaction for 1 h;

[0050] Step 4, adding silicone resin, and carrying out micro-boiling reaction in a full-immersion water bath at 94°C for 3 hours;

[0051] Step 5: Perform high temperature and h...

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Abstract

The invention relates to a method for preparing a high absorbency solar energy absorbing material. The method comprises the steps of firstly, mixing silicate, tungsten oxide, titanium source, an auxiliary agent and a solvent for reflux reaction; then adding a stabilizing liquid and carrying out ultrasonic reaction; afterwards, introducing nitrogen gas for aeration reaction to obtain a silica-based absorbing material; and finally, adding silicone resin, and obtaining a high absorbency solar energy absorbing material through water bath micro-boiling reaction and high temperature and high pressure reaction. Compared with the prior art, the method of the invention expands the solar spectrum utilization range of the material by adopting the silica-based absorbing material doped with tungsten and titanium elements, and also obtains a good bonding effect, ensures the stability of the material and improves the content of silica in the material by using the organic silicone resin for high temperature bonding. In addition, the preparation method is simple, the process conditions are mild, the reproducibility is good, the production cost is low, and the industrial production requirement can be satisfied.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and relates to a preparation method of a solar energy absorbing material with high light absorption rate. Background technique [0002] Compared with non-renewable resources such as coal, oil, and natural gas, solar energy has the advantages of abundant resources, clean and pollution-free, and not subject to geographical restrictions. There are many ways to utilize solar energy, such as photothermal conversion, photoelectric conversion or photochemical conversion. Among the many solar energy utilization methods, the most attractive one is the solar cell based on the photoelectric effect. In recent decades, solar energy utilization technology has made great progress in scientific research, commercial production, market development, etc., and has become one of the emerging industries with sustained and rapid development. Therefore, improving the effective utilization of solar energy is one of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/055H01L31/18
CPCH01L31/055H01L31/18Y02E10/52Y02P70/50
Inventor 朱燕艳仇庆林潘小杰
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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