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Body with composite coating, preparation method and application of body with composite coating, and solar cell

A composite coating and polymer sheet technology, applied in the field of solar cells, can solve the problems of solar panel efficiency of only 29.76%, lower and higher transmission rates, etc., and achieve good super-hydrophobic properties, light transmittance, and film-forming quality Good, the effect of improving the connection strength

Active Publication Date: 2020-01-17
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Numerous studies have reported the effect of dust deposition on solar panel efficiency: Adinoyi et al. reported that if a solar photovoltaic module is not cleaned for more than 6 months, its power conversion efficiency will decrease by 50%; similarly, Hee et al. found that , for the bare glass sample, the transmission rate was reduced despite the heavy rain in Singapore for several months
After 33 days, the transmittance of ordinary glass slides decreased from 90.7% to 87.6%; Paudyal et al. reported that after 5 months of outdoor exposure, the dust deposition density on the surface of solar panels decreased from 0.1047g / m 2 increased to 9.6711g / m 2 , leading to a solar panel efficiency of only 29.76%

Method used

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  • Body with composite coating, preparation method and application of body with composite coating, and solar cell
  • Body with composite coating, preparation method and application of body with composite coating, and solar cell
  • Body with composite coating, preparation method and application of body with composite coating, and solar cell

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preparation example Construction

[0080] According to another aspect of the present invention, there is provided a method for preparing the above-mentioned body with a composite coating, comprising the following steps:

[0081] (a) providing a substrate, and then adopting a chemical vapor deposition method to deposit a nano-silicon dioxide layer on the surface of the substrate;

[0082] (b) providing a hydrolyzate of the silane coupling agent;

[0083] (c) providing a superhydrophobic silica suspension;

[0084] (d) coating the hydrolyzed product of the silane coupling agent and the superhydrophobic silicon dioxide suspension on the surface of the nanometer silicon dioxide layer in sequence, and obtaining the body with the composite coating after curing.

[0085] The process of the above method is scientific and reasonable, the structure of the obtained composite coating is stable, the composite coating is not easy to detach from the surface of the substrate, and has super hydrophobicity, stain resistance and...

Embodiment 1

[0122] A method for preparing a body with a composite coating, comprising the following steps:

[0123] (a) A nano-silicon dioxide layer is deposited on the surface of the mica sheet by low-temperature chemical vapor deposition; the gas source is SiH with a volume ratio of 1:6 4 and N 2 O; the thickness of the nano-silicon dioxide layer is 1 μm, the particle size of the silicon dioxide is 30nm; the deposition temperature is 330°C, the radio frequency power is 15W, the deposition pressure is 200Pa, and the deposition time is 15min;

[0124](b) Mixing and reacting γ-aminopropyltriethoxysilane and an aqueous solution of ammonia for 70 minutes to obtain a hydrolyzate of a silane coupling agent;

[0125] (c) silicon dioxide and trimethylmethoxysilane are mixed and reacted to obtain a silicon dioxide suspension;

[0126] (d) Spray the hydrolyzate of the silane coupling agent and the silica suspension on the surface of the nano-silica layer in turn, and form an intermediate connect...

Embodiment 2-4

[0128] A kind of preparation method of band composite coating body, different from embodiment 1, in embodiment 2-4, SiH 4 and N 2 The volume ratios of O are 1:5, 1:0.1 and 1:2, respectively. All the other are identical with embodiment 1.

[0129] SiH in embodiment 2-4 4 and N 2 The volume ratio of O is within the preferred range of the present invention, wherein SiH in embodiment 3-4 4 and N 2 The volume ratio of O is within a further preferred range of the present invention.

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Abstract

The invention relates to the field of solar cells, in particular to a body with a composite coating, a preparation method and application of the body with the composite coating, and a solar cell. Thebody with the composite coating comprises a base material and the composite coating formed on the surface of the base material, wherein the composite coating comprises a nano silicon dioxide layer anda super-hydrophobic silicon dioxide layer, and the nano silicon dioxide layer is formed on the surface of the base material by adopting a chemical vapor deposition method; the super-hydrophobic silicon dioxide layer is arranged opposite to the nano silicon dioxide layer; the nano silicon dioxide layer and the super-hydrophobic silicon dioxide layer are connected through a silicon oxygen bond; andhydroxyl of each of the nano silicon dioxide layer and the super-hydrophobic silicon dioxide layer is condensed with a hydrolysis product of a silane coupling agent to form a siloxane bond. The bodywith the composite coating has the advantages of stable and firm structure, good hydrophobicity, excellent stain resistance and high transparency, can maintain good super-hydrophobic property and light transmittance under the condition of severe outdoor long-term use, and ensures that the photoelectric efficiency of the solar cell is not lost.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a body with a composite coating, a preparation method and application thereof, and a solar cell. Background technique [0002] With the continuous growth of the population, the demand for energy is also increasing, and green and renewable energy are of great significance to the sustainable development of society. As a clean and low-cost energy device, solar cells have become a research hotspot in the field of renewable energy. [0003] However, the power generation efficiency of solar photovoltaic modules used to generate electricity is usually affected by many environmental factors, such as available solar radiation, wind speed, wind direction, ambient temperature, humidity, and atmospheric dust, etc. Among them, the accumulation of dust on the surface of solar modules will lead to a significant drop in cell efficiency, especially in desert areas, due to the frequent occurrence of sa...

Claims

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Application Information

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IPC IPC(8): C23C16/40C23C18/12C23C28/04H01L31/0216H01L31/048
CPCC23C16/402C23C18/1208C23C18/1254C23C28/04H01L31/02167H01L31/0481Y02E10/50
Inventor 董兵海梁子辉王世敏周泽铸赵丽万丽王二静李静
Owner HUBEI UNIV
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