A quantum dot fluorescent solar concentrator based on spectral down-conversion technology, a flat-panel concentrating photovoltaic device, and a preparation method thereof
A technology of quantum dots and concentrators, applied in the field of concentrated photovoltaic power generation, can solve the problems of low photoelectric conversion efficiency, achieve good luminous stability, reduce surface reflection loss, and reduce the effect of occurrence probability
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specific Embodiment 1
[0028] A quantum dot fluorescent solar collector based on spectral down-conversion technology, such as figure 1 As shown, the quantum dot fluorescent solar light collecting layer 1 is included, the upper surface of the quantum dot fluorescent solar light collecting layer 1 is provided with a solar spectrum down conversion layer 2, the lower surface of the quantum dot fluorescent solar light collecting layer 1 and the solar spectrum down conversion layer The upper surfaces of 2 are respectively provided with a light-trapping layer glass sheet 3 for confining most of the photons inside it, the upper surface of the upper layer of light-trapping layer glass sheet 3 is provided with a top anti-reflection layer 4 for reducing the reflection of sunlight, and the lower layer is recessed The lower surface of the optical glass sheet 5 is provided with a bottom metal reflective layer 5 .
[0029] Wherein the preparation method of the solar spectrum down-conversion layer 2 is as follows: ...
specific Embodiment 2
[0033] A flat-panel concentrating photovoltaic device based on spectral down-conversion technology, such as figure 1 As shown, including the quantum dot fluorescent solar concentrator based on the spectrum down-conversion technology described in the above-mentioned embodiment 1, a solar cell panel 6 is arranged around the quantum dot fluorescent solar concentrator, and the outer surface of the solar cell panel 6 is fixedly arranged There is a conductive metal plated PCB board 7 for supporting the solar panel 6 .
[0034] In this specific embodiment, the solar cell panel 6 is pasted around the quantum dot fluorescent solar concentrator, the top of the solar cell panel 6 is in close contact with the lower surface of the top anti-reflection layer 4, and the bottom of the solar cell panel 6 is in close contact with the bottom metal. The upper surface of the reflective layer 5 is in close contact.
specific Embodiment 3
[0036] The preparation method of the flat-panel concentrating photovoltaic device based on the spectral down-conversion technology described in the above-mentioned specific embodiment 2 is characterized in that it comprises the following steps:
[0037] (1) Preparation of quantum dot fluorescent solar light-collecting layer 1: quantum dots with fluorescent properties are used as the luminescent center, polymer materials with good light transmission properties and high refractive index are used as the matrix, and UV-cured or heat-cured Method, after curing and demoulding, the quantum dot fluorescent solar light collecting layer 1 is prepared through cutting and polishing processes; wherein the quantum dots are any one of carbon quantum dots, all-inorganic perovskite quantum dots and cadmium sulfide quantum dots; polymerization The material is polymethyl methacrylate (PMMA) or polydimethylsiloxane (PDMS);
[0038] (2) Preparation of solar spectrum down-conversion layer 2: unifor...
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