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Indoor building material with lead-free perovskite photoelectric conversion coating

A building material and photoelectric conversion technology, applied in construction, photovoltaic power generation, building construction, etc., can solve the problems of not being suitable for the pursuit of the overall design of the interior space, not having energy-saving effects, and being difficult to promote on a large scale, and achieving production costs Low, beautify the indoor environment, high photoelectric conversion efficiency effect

Inactive Publication Date: 2019-11-01
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, this technology converts indoor artificial lighting sources into electric energy. Except for a Japanese patent related to this at home and abroad - "curtains, ceilings, desktops, decorative paintings, etc. made of solar cells", there is no other invention and application
The above-mentioned patented products are all used for indoor partial and temporary decorative components, and most of them belong to the category of soft decoration. Not only do they not meet the designer's pursuit of the overall design of the interior space, but they are also difficult to promote on a large scale in the architectural interior decoration industry.
And because of the easy disassembly of these decorative components, they may be replaced during regular interior decoration. From the perspective of the entire life cycle of the building, it does not have long-term effective energy-saving effects

Method used

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  • Indoor building material with lead-free perovskite photoelectric conversion coating
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  • Indoor building material with lead-free perovskite photoelectric conversion coating

Examples

Experimental program
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Effect test

Embodiment 1

[0020] An interior building material with a lead-free perovskite photoelectric conversion coating, such as figure 1 As shown in ①, 1 is a transparent electrode; 2 is a lead-free perovskite material; 3 is a transparent conductive coating; 4 is an ordinary polished tile; 5 is a surface hardening layer. Firstly, a thicker conductive film is coated on ordinary polished tiles, and then a layer of single or multiple combinations of lead-free perovskite materials is coated on the conductive film in a specific pattern, followed by an overall low-temperature annealing treatment, and finally in the absence of A transparent electrode is deposited on the lead perovskite material. Wherein, the thicker conductive film 3 means that its thickness should be enough to smooth the rough substrate surface. According to different application scenarios, the transparent electrode 1 can be replaced by a transparent conductive coating 3 . Such as figure 1 As shown in ①(b), the final product can be s...

Embodiment 2

[0023] An interior building material with a lead-free perovskite photoelectric conversion coating, such as figure 2 As shown, these are two of the specific application forms of color patterned lead-free perovskite materials. Material 1 in the picture is light yellow MA 3 Sb 2 I 9 , material 2 is red Rb 3 Sb 2 I 9 , material 3 is brown Cs 3 Sb 2 Cl 3 I 6 ,, material 4 is yellow Cs 3 Sb 2 I 9 . In this way, lead-free perovskite materials of different colors can be combined to design architectural materials with beautiful patterns, which can recycle indoor artificial light sources and beautify the indoor environment.

Embodiment 3

[0025] An interior building material with a lead-free perovskite photoelectric conversion coating, such as image 3 As shown, two lead-free perovskite materials (Rb 3 Sb 2 I 9 and Cs 3 Sb 2 Cl 3 I 6)'s absorption spectrum is in good agreement with the spectrum of indoor white LED light sources and fluorescent lamps. After testing, the light absorption efficiency of the two materials under the white LED light source can reach 55% and 64% respectively; under the fluorescent light source, the light absorption efficiency can reach 69% and 76% respectively.

[0026] The calculation formula is: (1)

[0027] Among them, S(λ)=energy spectrum of light source; A(λ)=absorbance; λ max = minimum excitation wavelength; λ min = maximum excitation wavelength.

[0028] for Rb 3 Sb 2 I 9 , the light absorption under white LED is 55.53%; the light absorption under fluorescent light is 69.46%.

[0029] for Cs 3 Sb 2 Cl 3 I 6 , the light absorption under white LED is 64.92%; th...

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Abstract

The invention provides an indoor building material with lead-free perovskite photoelectric conversion coating. A transparent conductive coating is coated on a surface of a permanent indoor building material, a lead-free perovskite material is coated on the transparent conductive coating, a transparent electrode is coated on the lead-free perovskite material, wherein the transparent electrode and the transparent conductive coating are connected through a lead to supply power for an external electronic device. The indoor building material is advantaged in that challenges of realizing photovoltaic utilization on the surface of the permanent building material are better solved, the preparation process is simple, the light absorption rate of an indoor artificial light source can reach about 60%, photoelectric conversion efficiency under the indoor artificial light source can reach 6% above, use of combination of materials of different colors can further beautify the indoor environment, andthe indoor building material has a wide-range popularization value.

Description

technical field [0001] The invention belongs to the field of indoor building materials, in particular to an indoor building material with a lead-free perovskite photoelectric conversion coating. Background technique [0002] Photovoltaic power generation technology is a technology that directly converts light energy (mainly solar energy) into electrical energy by using the photovoltaic effect. However, at present, this technology converts indoor artificial lighting sources into electric energy. Except for a Japanese patent related to this at home and abroad - "curtains, ceilings, desktops, decorative paintings, etc. made of solar cells", there is no other invention and application. The above-mentioned patented products are all used for indoor partial and temporary decoration components, and most of them belong to the soft decoration category. Not only do they not meet the designer's pursuit of overall design of the interior space, but they are also difficult to promote on a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42E04F13/08
CPCE04F13/074E04F2290/02H10K30/30Y02E10/549
Inventor 潘一婷文森彭岳衡李凤竹
Owner SUZHOU UNIV
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