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Double-sided light-receiving carbon-based superposed solar cell and testing device

A solar cell and measuring device technology, applied in photovoltaic power generation, photovoltaic system monitoring, circuits, etc., to achieve the effects of abundant reserves, increased energy output power, and reduced energy consumption

Inactive Publication Date: 2021-02-02
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention combines advanced laminated carbon-based structure batteries, systematically screens different types of carbon nanotube back electrodes, and finally prepares a carbon-based laminated solar cell with double-sided light-receiving work, which not only solves the problem of traditional perovskite solar cell back electrodes The cost problem caused by vacuum evaporation and precious metals needs to be used to ensure that the front light receiving efficiency is as high as 19.3%. At the same time, the output power per unit area can be further increased (255W m -2 )

Method used

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  • Double-sided light-receiving carbon-based superposed solar cell and testing device
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  • Double-sided light-receiving carbon-based superposed solar cell and testing device

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Embodiment 1

[0045] Embodiment 1, double-sided light-receiving solar cell and its preparation method

[0046] Except that step (1) selected FTO conductive glass as conductive substrate, the concentration of aqueous HCl solution is specifically 4M; the electron extraction layer composition of step (2) is SnO 2 , the specific choice is 0.1M stannous chloride isopropanol solution; the light absorbing layer used in step (3) is Cs 0.05 [(FAPbI 3 ) 0.85 (MAPbBr3) 0.15 ] 0.95 The spin-coating rotation number of step (4) is 3000rpm, and the time is 30s; Get 10mg carbon black and 2.5ml isopropanol solution mixed rear ball milling 2h in the step (5), back electrode substrate is FTO conductive glass, Layer I layer and Except for changing the thickness of Layer II MWCNT / 1, other steps are the same as the above method. figure 1 Table 1 shows the JV curves of different battery thicknesses and the corresponding photoelectric performance parameters.

Embodiment 2

[0047] Embodiment 2, double-sided light-receiving solar cell and its preparation method

[0048] Except that step (1) selected FTO conductive glass as conductive substrate, the concentration of aqueous HCl solution is specifically 4M; the electron extraction layer composition of step (2) is SnO 2 , the specific choice is 0.1M stannous chloride isopropanol solution; the light absorbing layer used in step (3) is Cs 0.05 [(FAPbI 3 ) 0.85 (MAPbBr3) 0.15 ] 0.95 The spin-coating rotation number of step (4) is 3000rpm, and the time is 30s; Get 10mg carbon black and 2.5ml isopropanol solution mixed rear ball milling 2h in the step (5), back electrode substrate is FTO conductive glass, Layer I layer and Except for selecting different types of carbon nanotubes for the Layer II layer, other steps are the same as the above method. Figure 2-4 There are three different types of carbon nanotubes, respectively numbered MWCNT / 1, MWCNT / 2, and SWCNT. Figure 5-7 And Table 2-4 are three di...

Embodiment 3

[0049] Embodiment 3, double-sided light-receiving solar cell and its preparation method

[0050] Except that step (1) selected FTO conductive glass as conductive substrate, the concentration of HCl aqueous solution is specifically 4M; the electron extraction layer composition of step (2) is SnO 2 , the specific choice is 0.1M stannous chloride isopropanol solution; the light absorbing layer used in step (3) is Cs 0.05 [(FAPbI 3 ) 0.85 (MAPbBr3) 0.15 ] 0.95 The spin-coating rotation number of step (4) is 3000rpm, and the time is 30s; Get 10mg carbon black and 2.5ml isopropanol solution mixed rear ball milling 2h in the step (5), back electrode substrate is FTO conductive glass, Layer I layer and Except that the carbon nanotube MWCNT / 2 is selected for the Layer II layer, the other steps are the same as the above method. Figure 8-9 The test device for simulating double-sided light-receiving work for double-sided devices respectively ( Figure 8 For the single light source ...

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Abstract

The invention discloses a double-sided light-receiving carbon-based superposed solar cell and a testing device, which belong to the technical field of new energy materials and devices. According to the double-sided light-receiving solar cell, the cathode is composed of two layers of ultrathin carbon nanotube materials, the light transmittance of the back electrode is improved, the problem that a conventional noble metal electrode is light-proof is solved, the obtained double-sided carbon-based superposed solar cell can utilize incident light on the front surface and the back surface at the same time, and the output power per unit area is effectively increased. Compared with a traditional solar cell, the double-sided light-receiving solar cell can greatly improve the sunlight utilization rate and improve the photoelectric conversion power per unit area; the device structure can be easily combined with a building; the carbon nanotube material is used for replacing noble metal gold or silver in the perovskite solar cell, so that the cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of new energy materials and devices, and in particular relates to a double-sided light-receiving carbon-based laminated solar cell and a testing device. Background technique [0002] At present, while the non-renewable fossil energy is continuously consumed, it has caused serious environmental pollution. Human beings urgently need to develop and utilize renewable energy to replace fossil energy. Among various renewable energy sources, solar energy is considered to be an inexhaustible and clean energy that is not subject to geographical restrictions. [0003] A solar cell is a device that converts solar energy into electrical energy. It has gone through three generations, among which perovskite solar cells lead the development of the third generation of solar cells, and the certified efficiency is as high as 25.5%. However, the output power per unit area of ​​single-sided cells is limited by the light-absor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H02S50/15
CPCH02S50/15H10K30/15H10K30/151H10K30/821Y02E10/549Y02B10/10
Inventor 史彦涛张春阳
Owner DALIAN UNIV OF TECH