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A high-efficiency high-energy light photoelectric conversion material and its manufacturing method
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A photoelectric conversion material and high-efficiency technology, applied in the field of solar photoelectric materials, can solve problems such as lack of resources, inappropriate opening of other resource projects, and energy waste
Active Publication Date: 2020-06-02
STATE GRID SHANDONG ELECTRIC POWER CO WEISHAN POWER SUPPLY CO
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[0003] In addition, with environmental pollution and global warming, the area of the ozone hole above the earth is increasing and the thickness of the ozone is decreasing, resulting in a large number of high-energy rays (ultraviolet rays, ionizing rays, etc.) Due to the severe cold temperature, lack of resources, vast land and sparse population, and inconvenient transportation in these areas, it is not suitable to open other resource projects. However, considering the whole country, the light energy resources are rich and concentrated, so it is necessary to design and develop targeted high-energy light photoelectric Conversion materials realize efficient absorption and reuse of light energy resources
[0004] But at present, all the photoelectric conversion materials in the prior art can only achieve one-time absorption, which is not a big problem in the sun-drenched area, and the low photoelectric conversion efficiency in the area with high light energy density will relatively cause more energy waste. Some photoelectric conversion materials are poor in wind erosion resistance and weather resistance, and are not suitable for use in areas with high temperature differences, strong winds, and high light
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Embodiment 1
[0027]A high-efficiency and high-energy light photoelectric conversion material, including a glass cover 1, a solar cell 2 whose upper surface is tightly glued to the bottom of the glass cover 1 by EVA, and a mounting groove 3 for fixing the glass cover 1 and the solar cell 2, characterized in that : the glass cover plate 1 is a double-layer glass, wherein the lower layer of glass is a high light-density glass (high light) with a refractive index nd value of 1.80-1.81 made of lead oxide, silicon dioxide, sodium carbonate, potassium nitrate, and strontium oxide as a raw material The formula of the dense glass is based on the existing technology, and the dosage and purity of lead oxide, sodium carbonate, potassium nitrate, and strontium oxide are adjusted to increase the refractive index and reduce the light transmittance, so a special description is made), the upper layer of glass is the refractive index Low optical density glass with an nd value of 1.50-1.53 (the formulation ...
Embodiment 2
[0044] The whole is consistent with Example 1, the difference is:
[0045] 1) Preparation of lower vitreous body
[0046] ① Prepare the following raw materials by weight: lead oxide 73Kg, silicon dioxide 26Kg, sodium carbonate 1.4Kg, potassium nitrate 2.2Kg, strontium oxide 0.4Kg, all raw materials are analytically pure;
[0047] 2) Preparation of upper vitreous body
[0048] ①Prepare the following raw materials in terms of molecular weight: 85Kg of silicon tetrafluoride, 3Kg of sulfur hexafluoride, 3Kg of dicarbon tetrafluoride, 8Kg of boron oxide, sufficient amount of high-purity oxygen with a purity of not less than 99.99%, defoaming Dosage 0.2Kg;
[0049] The present invention is only part of the structure for light energy absorption, and needs to be matched with other matching structures (such as cables, aluminum alloy frames, rotating structures, etc.) The lower layer is 87.5%), and the average absorption rate of light energy is 34.1%.
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Abstract
The invention discloses a high-efficiency and high-energy light photoelectric conversion material and a manufacturing method thereof. The photoelectric conversion material includes a glass cover plate, a solar cell whose upper surface and the bottom of the glass cover plate are tightly bonded by EVA, and a fixed glass cover plate and a solar cell. The installation groove, the glass cover plate is double-layer glass, wherein the lower layer of glass is high optical density glass with a refractive index nd value of 1.80-1.81 made of lead oxide, silicon dioxide, sodium carbonate, potassium nitrate, and strontium oxide as raw materials, The upper layer of glass is a low-light-density glass with a refractive index nd value of 1.50-1.53. The side of the low-light-density glass that is not in contact with the high-light-density glass has an eccentric convex lens structure; The outer area where the groove matches the glass cover plate and the solar cell is provided with a heat-conducting silicone grease sealing structure. The invention is suitable for areas with high light energy density, high energy conversion efficiency, heat resistance, cold resistance and weathering resistance.
Description
technical field [0001] The invention relates to the technical field of solar photoelectric materials, in particular to a photoelectric conversion material with high efficiency and high energy light and a manufacturing method thereof. Background technique [0002] Photoelectric conversion materials refer to materials that convert solar energy into electrical energy through the photovoltaic effect, and are mainly used to make solar cells. The sun is a huge energy pool, and the solar energy received by the earth in a year is as high as 1.8×10 18 kWh. The purpose of research and development of photoelectric conversion materials is to utilize solar energy. The requirements of solar cells for photoelectric conversion materials are high conversion efficiency and large-area devices to better absorb sunlight. The used photoelectric conversion materials are mainly monocrystalline silicon, polycrystalline silicon and amorphous silicon. Solar cells made of monocrystalline silicon ha...
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