A quantum dot fluorescent solar concentrator based on spectral upconversion technology, a flat-panel concentrator photovoltaic device, and a preparation method thereof
A technology of quantum dots and concentrators, applied in the field of concentrating photovoltaic power generation, can solve the problems of reducing the collection efficiency of fluorescent solar concentrators, large photon transport losses, and low photon energy, so as to improve the radiation recombination luminous efficiency, Reduces the chance of occurrence and the effect of reducing the escape rate
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specific Embodiment 1
[0028] A quantum dot fluorescent solar concentrator based on spectral upconversion technology, such as figure 1 As shown, including the quantum dot fluorescent solar light collecting layer 1, the lower surface of the quantum dot fluorescent solar light collecting layer 1 is provided with a solar spectrum up-conversion layer 2, the upper surface of the quantum dot fluorescent solar light collecting layer 1 and the solar spectrum up-conversion layer The lower surface of 2 is provided with a light trapping layer glass sheet 3 for confining most of the photons inside it, the upper surface of the upper light trapping layer glass sheet 3 is provided with a top antireflection layer 4 for reducing sunlight reflection, and the lower layer is trapped The bottom surface of the optical layer glass sheet 5 is provided with a bottom metal reflection layer 5 .
[0029] The preparation method of the solar spectrum up-conversion layer 2 is as follows: ethyl orthosilicate, absolute ethanol and ...
specific Embodiment 2
[0033] A flat-panel concentrator based on spectral up-conversion technology, such as figure 1 As shown, including the quantum dot fluorescent solar concentrator based on the spectral up-conversion technology described in the above-mentioned embodiment 1, the quantum dot fluorescent solar concentrator is provided with a solar cell panel 6 around it, and the outer side of the solar cell panel 6 is fixedly arranged There is a PCB board 7 plated with conductive metal for supporting the solar panel 6 .
[0034] In this specific embodiment, the solar cell panel 6 is pasted around the quantum dot fluorescent solar collector, 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 surfaces of the reflective layer 5 are in close contact.
specific Embodiment 3
[0036] The preparation method of the flat-panel concentrating photovoltaic device based on the spectral up-conversion technology described in the above-mentioned specific embodiment 2 is characterized by comprising the following steps:
[0037] (1) Preparation of quantum dot fluorescent solar light-collecting layer 1: using quantum dots with fluorescent properties as the light-emitting center, using polymer materials with good light transmission properties and high refractive index as the matrix, using ultraviolet curing or heating curing The method is: after curing and demoulding, a 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 up-conversion layer 2:...
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