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Method for preparing CuInS2 hollow solar absorbing material

A technology of solar energy absorption and cuins2, applied in chemical instruments and methods, inorganic chemistry, tin compounds, etc., can solve the problems of ternary sulfides that have not been reported yet, and achieve the effect of rapid response, simple operation steps and low cost

Inactive Publication Date: 2012-07-11
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although hollow materials have been prepared in large quantities, compared with single and binary compounds, the synthesis of ternary sulfides by template sacrificial methods has not been reported.

Method used

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  • Method for preparing CuInS2 hollow solar absorbing material
  • Method for preparing CuInS2 hollow solar absorbing material
  • Method for preparing CuInS2 hollow solar absorbing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Add 4 parts of thiourea, 1 part of indium salt, and 0.68 parts of polyvinylpyrrolidone and ethanol into a polytetrafluoroethylene reactor, then seal the reactor and put it in a 180°C In the oven, the reaction time was 12 hours.

[0029] (2) After the reaction, the reaction kettle was naturally cooled to room temperature, the product was filtered, washed several times with absolute ethanol, and vacuum-dried to obtain the hollow solar energy absorbing material CuInS 2 .

[0030] Figure 1-2 is the obtained hollow solar absorbing material CuInS 2 The X-ray diffraction (XRD) pattern of the CuInS shown as pure phase 2 . Figure 3-4 is the scanning electron microscope (SEM) and transmission electron microscope (TEM) of the sample. It can be seen from the figure that the hollow solar absorbing material CuInS 2 A hollow cube.

Embodiment 2

[0032] The steps are the same as in Example 1, except that the sulfur source in Example 1 is thiourea, the reaction temperature is 140°C, and the reaction time is 48 hours to obtain the hollow solar energy absorbing material CuInS 2 nanomaterials, Figure 5 For the prepared CuInS 2 The transmission electron microscope photo of the nanometer material, it can be seen from the photo that the prepared material is a hollow material.

Embodiment 3

[0034] The steps are the same as in Example 1, except that the alcohols in Example 1 are propanol, and the sulfur source is carbon disulfide, so as to obtain the hollow solar energy absorbing material CuInS 2 nanomaterials, Figure 6 For the prepared CuInS 2 The transmission electron microscope photo of the nanometer material, it can be seen from the photo that the prepared material is a square hollow material.

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Abstract

The invention relates to a method for preparing a CuInS2 hollow solar absorbing material. According to the method, an indium source, a sulfur source and the like are taken as precursors, cuprous oxide with a specific morphology is taken as a self-sacrifice template and a copper source, and a CuInS2 hollow nanomaterial can be prepared through selecting appropriate solvents and surfactants and controlling a certain reacting temperature and reacting time. Compared with the prior art, the invention has the advantages that: the method is simple in operating steps, rapid in reaction, and low in cost and can meet the industrial requirements, and the prepared CuInS2 hollow nanomaterial can have good application on photocatalytic and solar photovoltaic cells.

Description

technical field [0001] The invention belongs to the field of preparation of inorganic materials, and in particular relates to a hollow solar absorbing material CuInS prepared by a template method. 2 Methods. Background technique [0002] As an inexhaustible renewable and clean energy source, solar energy has been paid more and more attention. The research and development of solar cells based on the photovoltaic effect is one of the fastest growing and most dynamic research fields in recent years. Solar cells are mainly based on semiconductor materials, using the photoelectron transfer reaction that occurs after photoelectric materials absorb light energy. Therefore, the development of light absorption conversion materials that capture and convert solar energy in photovoltaic systems is one of the key technical issues. Although silicon-based solar cells with high solar cell conversion efficiency occupy a dominant position in large-scale applications and industrial productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/00B82Y40/00
Inventor 宰建陶钱雪峰陈虹锦黄崇文徐淼沈杰肖映林韩倩琰李波
Owner SHANGHAI JIAO TONG UNIV
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