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Luminescent solar concentrator and preparation method thereof

A concentrator, solar energy technology, applied in photovoltaic power generation, semiconductor devices, final product manufacturing, etc., can solve the problems of low FQY, inconsistent with green chemistry, high price, etc., and achieve the effect of reducing costs

Inactive Publication Date: 2012-10-24
DALIAN MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, CdSe / ZnS quantum dots have overlap between absorption and fluorescence spectra, low FQY, and are expensive
Furthermore, cadmium is a toxic substance and does not meet the requirements of green chemistry

Method used

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  • Luminescent solar concentrator and preparation method thereof
  • Luminescent solar concentrator and preparation method thereof
  • Luminescent solar concentrator and preparation method thereof

Examples

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Effect test

preparation example Construction

[0042]

[0043] The method for preparing the solar fluorescent concentrator of the present invention includes the following steps (1)-(4).

[0044] (1) Synthesis of PbS quantum dots by pyrolyzing sulfur-containing metal-lead organic complexes

[0045] Take lead nitrate and sodium diethyldithiocarbamate (copper reagent) (the mass ratio of lead nitrate to sodium diethyldithiocarbamate is preferably 6-8:10, more preferably 7-7.5:10.) respectively Dissolve in deionized water, mix and stir the two solutions to produce a white precipitate, resonate the mixed solution in an ultrasonic resonance cleaner to make the precipitate evenly mixed, and obtain the precipitate by filtering or other means. After washing the precipitate, dry it in a drying oven (such as an electric heating constant temperature drying oven at 80° C.) to obtain the sulfur-containing metal lead organic complex precursor powder. Disperse the obtained precursor powder in a mixed solvent of oleic acid and octadecene...

Embodiment 1

[0061] (1) Synthesis of PbS quantum dots by pyrolyzing sulfur-containing metal-lead organic complexes

[0062] Dissolve analytically pure lead nitrate (1.6560g) and sodium diethyldithiocarbamate (copper reagent) (2.2531g) in deionized water respectively, mix and stir the two solutions to produce a white precipitate, and the mixed solution is ultrasonically Resonate in the resonance cleaner for 5 minutes to mix the precipitate evenly, and then filter to obtain the precipitate. The precipitate was washed once with deionized water and twice with absolute ethanol, and then dried in an electric heating constant temperature drying oven at 80° C. to obtain a sulfur-containing metal lead organic complex precursor powder. The obtained precursor powder was dispersed in a mixed solvent of oleic acid and octadecene (volume ratio 1:1), and heated and decomposed at 280°C under the protection of argon to finally obtain PbS quantum dots. The particle size of the PbS quantum dots was measured...

Embodiment 2

[0071] In addition to replacing the 20×20×0.2cm quartz glass plate used in the step (3) of Example 1 with a 30×30×0.2cm quartz glass plate, and the length used in the step (4) of Example 1 Except that the silicon-based solar cell strip with a length of 20 cm and a width of 0.7 cm is replaced with a silicon-based solar cell strip with a length of 30 cm and a width of 0.7 cm, the solar fluorescent concentrator prototype 2 is prepared in the same way as in Example 1. .

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Abstract

The invention discloses a PbS quantum dot-based luminescent solar concentrator and a preparation method thereof. The luminescent solar concentrator comprises a light wave conversion module and a silicon-based solar cell matched with the edge of the light wave conversion module optically, wherein the light wave conversion module is formed in a manner that two layers of glass plates clamp a PbS quantum dot-doped polymer film. According to the luminescent solar concentrator, the light wave conversion module is used for replacing a large-area silicon-based solar cell panel, and perpendicularly incident and irreflexive sunlight is collected, a high-cost sun tracking system is not needed, and the cost of a solar power system is lowered.

Description

technical field [0001] The invention relates to a solar fluorescent concentrator and a preparation method thereof, belonging to the technical field of renewable energy. Background technique [0002] Solar energy is an inexhaustible green energy. Solar cells have unique advantages such as safety, reliability, no pollution, no need to consume fuel, and no mechanical rotating parts. Especially, they can be combined with buildings to form a photovoltaic roof power generation system, which is an important part of renewable energy. Since the "Sixth Five-Year Plan", my country has always included the development of solar energy and other renewable energy technologies in the national scientific and technological research plan. In recent years, obtaining high photoelectric conversion rate at low price is the main driving force for research and development in the field of solar cells. The development of reliable, efficient and low-cost solar cell power generation systems has great ec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/055H01L31/18
CPCY02E10/50Y02E10/52Y02P70/50H01L31/055
Inventor 彭勇罗昔贤邢明铭付姚
Owner DALIAN MARITIME UNIVERSITY
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