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A polymer-based phototropic perovskite solar cell and its preparation method

A solar cell and polymer-based technology, applied in the field of solar cells, can solve the problems of unfavorable miniaturization, self-adaptive intelligent application, energy consumption, etc., and achieve the improvement of photoelectric conversion efficiency, energy utilization efficiency, important energy-saving significance and The effect of applying value

Active Publication Date: 2020-06-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above solar tracking systems are all based on complex mechanical devices and computer algorithm control, which consume a certain amount of energy and are not conducive to miniaturized and adaptive intelligent applications.

Method used

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  • A polymer-based phototropic perovskite solar cell and its preparation method
  • A polymer-based phototropic perovskite solar cell and its preparation method
  • A polymer-based phototropic perovskite solar cell and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] (1) Prepare the electron transport layer on the working electrode: the working electrode is made of ITO-PET with a thickness of 500 μm and a transmittance of 85%; the electron transport layer is made of inorganic material TiO 2 . Magnetically stir the mixed solution of 18ml ethanol, 1.8ml n-butyl titanate and 0.38ml diethanolamine at 40°C for 2h, let it stand for 24h, and then spin coat the mixed solution onto the surface of ITO-PET. Transfer to a pre-heated 150°C hot stage and heat for 180min to obtain an electron transport layer TiO with a thickness of 3nm 2 ; Wherein the spin coating speed is 3000rpm, and the time is 45s.

[0032] (2) Preparation of light-absorbing layer on the electron transport layer: the perovskite precursor PbI 2 Dissolve in DMF according to the concentration of 463 mg / ml, and spin-coat the obtained solution on the surface of the above-mentioned electron transport layer. Immediately after the spin-coating, transfer the film to a pre-heated 70°C...

Embodiment 2

[0039] (1) Prepare the electron transport layer on the working electrode: the working electrode is made of ITO-PET with a thickness of 1 μm and a transmittance of 95%; the electron transport layer is made of inorganic material SnO 2 . The precursor SnCl 2 2H 2 O was dissolved in ethanol at a concentration of 0.1 mg / ml, and then the solution was spin-coated onto the surface of ITO-PET. Immediately after the spin-coating, the film was transferred to a pre-heated 150°C hot stage and heated for 60 minutes to obtain an electron transport layer with a thickness of 40nm. Layer SnO 2 ; Wherein the spin coating speed is 2500rpm, and the time is 45s.

[0040] (2) Preparation of light-absorbing layer on the electron transport layer: the perovskite precursor PbI 2 Dissolve in DMF according to the concentration of 463 mg / ml, and spin-coat the obtained solution on the surface of the above-mentioned electron transport layer. Immediately after the spin-coating, transfer the film to a pre-...

Embodiment 3

[0047] (1) Prepare the electron transport layer on the working electrode: the working electrode is made of ITO-PET with a thickness of 350 μm and a transmittance of 90%; the electron transport layer is made of inorganic material SnO 2 . The precursor SnCl 2 2H 2 O was dissolved in ethanol at a concentration of 0.1 mg / ml, and then the solution was spin-coated on the surface of ITO-PET. Immediately after the spin-coating, the film was transferred to a pre-heated 150°C hot stage and heated for 60 min to obtain an electron transport film with a thickness of 60 nm. Layer SnO 2 ; Wherein the spin coating speed is 2000rpm, and the time is 45s.

[0048] (2) Preparation of light-absorbing layer on the electron transport layer: the perovskite precursor PbI 2 Dissolve in DMF according to the concentration of 463 mg / ml, and spin-coat the obtained solution on the surface of the above-mentioned electron transport layer. Immediately after the spin-coating, transfer the film to a pre-heat...

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Abstract

The invention relates to a polymer-based phototactic perovskite solar cell and a preparation method thereof, comprising a polymer-based substrate, a counter electrode, a hole transport layer, a light-absorbing layer, an electron transport layer and a working electrode stacked in sequence; wherein, The polymer-based substrate is a composite film of biaxially oriented polypropylene PP and low-density polyethylene LDPE; the light-absorbing layer is an organic-inorganic hybrid CH with a perovskite structure. 3 NH 3 PB 3 Photovoltaic materials. The solar cell of the invention does not need complex power equipment, can realize phototaxis movement, and even achieve the purpose of turning to absorb more sunlight, and has high application value.

Description

technical field [0001] The invention belongs to the technical field of solar cells, in particular to a polymer-based phototropic perovskite solar cell and a preparation method thereof. Background technique [0002] Due to its advantages of easy acquisition, low leakage signal and no noise during power generation, solar energy has become an important object sought after by environmental protection experts from all over the world, and has received more and more attention. As a technological innovation, solar power generation technology has gradually emerged in various fields in recent years. [0003] A solar cell is a device that directly converts light energy into electrical energy through the photoelectric effect or photochemical effect. Perovskite cells are a new type of solar cells, mainly using ABX with perovskite structure 3 (A=CH 3 NH 3 + etc.; B=Pb 2+ , Sn 2+ etc.; X=Cl - , Br - , I - etc.) to realize photoelectric conversion, which has the advantages of wide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/48
CPCH10K77/10H10K30/10Y02E10/549
Inventor 张青红戚佳斌侯成义王宏志李耀刚
Owner DONGHUA UNIV
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