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Perovskite solar battery and preparing method thereof

A solar cell and perovskite technology, applied in the field of solar cells, can solve the problems of high production costs, low energy conversion efficiency, and bottlenecks in the development of solar cells.

Inactive Publication Date: 2014-06-11
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these types of batteries have been deeply researched in basic science and practical applications, the development of solar cells was once stuck in a bottleneck period due to problems such as high production costs, high toxicity, or low energy conversion efficiency.
But there are some problems in this battery, such as dense TiO 2 Electron transport layer and mesoporous TiO 2 The scaffold layer needs to be treated at a high temperature of 500°C, and the hole transport layer Spiro-OMeTAD is expensive, etc.

Method used

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  • Perovskite solar battery and preparing method thereof
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  • Perovskite solar battery and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Preparation of ITO / PEDOT:PSS / CH 3 NH 3 PB 3-x Cl x / OQBMF / Al perovskite solar cell

[0046] First PEDOT:PSS (Clevios TM P VP AI4083) was spin-coated on the pretreated ITO glass surface at a speed of 2500rpm, and heated at 100°C in air for 50min to obtain a 50nm thick PEDOT:PSS film; a molar ratio of 3:1 CH 3 NH 3 I and PbCl 2 Mix and dissolve in DMF to obtain a solution with a concentration of 51wt%, spin-coat it on the PEDOT:PSS film at a speed of 4500rpm in a glove box, heat at 140°C for 30min, and obtain a 230nm brown-black CH 3 NH 3 PB 3-x Cl x Thin film; OQBMF was dissolved in chlorobenzene or other solvents to obtain a solution with a concentration of 30mg / mL, which was spin-coated on CH at 4000rpm 3 NH 3 PB 3-x Cl x On the film, a 57nm OQBMF film was obtained; in high vacuum (-4 Pa), vapor-deposit 100nm aluminum electrode to complete the battery preparation. After testing, the battery efficiency is 12.5%.

Embodiment 2

[0048] Preparation of ITO / PEDOT:PSS / CH 3 NH 3 PB 3-x Cl x / PC 61 BM / Al perovskite solar cells

[0049] First PEDOT:PSS (Clevios TM P VP AI4083) was spin-coated on the pretreated ITO glass surface at 2000rpm, and heated at 120°C in air for 30min to obtain a 57nm thick PEDOT:PSS film; the molar ratio was 3.2:1 CH 3 NH 3 I and PbCl 2 Mix and dissolve in DMF to obtain a solution with a concentration of 40wt%, spin-coat it on the PEDOT:PSS film at a speed of 1000rpm in a glove box, heat at 120°C for 45min, and obtain a 460nm brown-black CH 3 NH 3 PB 3-x Cl x film; the PC 61 BM was dissolved in chlorobenzene or other solvents to obtain a solution with a concentration of 20mg / mL, which was spin-coated on CH at 1500rpm 3 NH 3 PB 3-x Cl x thin film, resulting in 40nm PC 61 BM film; in high vacuum (-4 Pa), vapor-deposit 100nm aluminum electrode to complete the battery preparation. After testing, the battery efficiency is 10.8%.

Embodiment 3

[0051] Preparation of ITO / PEDOT:PSS / CH 3 NH 3 PB 3-x Cl x / PC 61 BM / Al perovskite solar cells

[0052] First PEDOT:PSS (Clevios TM P VP AI4083) was spin-coated on the pretreated ITO glass surface at a speed of 3000rpm, and heated at 160°C in the air for 25min to obtain a 41nm thick PEDOT:PSS film; the molar ratio of CH was 3.1:1 3 NH 3 I and PbCl 2 Mix and dissolve in DMF to obtain a solution with a concentration of 45wt%, spin-coat it on the PEDOT:PSS film at 2000rpm in a glove box, heat at 115°C for 80min, and obtain a 360nm brown-black CH 3 NH 3 PB 3-x Cl x film; the PC 61 BM was dissolved in chlorobenzene or other solvents to obtain a solution with a concentration of 10mg / mL, which was spin-coated on CH at 800rpm 3 NH 3 PB 3-x Cl x thin film, to obtain 45nm PC 61 BM film; in high vacuum (-4 Pa), vapor-deposit a 150nm aluminum electrode to complete the battery preparation. After testing, the battery efficiency is 11.7%.

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Abstract

The invention relates to a perovskite solar battery and a preparing method thereof. The perovskite solar battery comprises a transparent electrode, a hole transmission layer, a perovskite light absorption layer, an electronic transmission layer and a metal electrode. The hole transmission layer comprises at least one of PEDOT: PSS, P3HT, PTAA, PThTPTI, metallic oxide and graphene oxide. The electronic transmission layer comprises at least one of 58 pi-electronic fullerene PCBM, 56 pi-electronic fullerene OQMF, 54 pi-electronic fullerene OQBMF, PFN, PEIE, ZnO, TiO2, doped or modified ZnO or TiO2. The perovskite solar battery is high in energy exchange efficiency and low in cost and can be produced on a large scale, and the preparing method is simple in technology.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a high-efficiency perovskite solar cell and a preparation method thereof. Background technique [0002] With the sharp increase of human demand for energy and the severe environmental pollution caused by fossil energy, as well as the continuous depletion of fossil energy, energy issues have become an important issue facing all mankind. Just after the Spring Festival in 2014, severe smog caused by vehicle exhaust and industrial emissions appeared in many places across the country, which greatly damaged the health of the people and the image of the country, and aroused the attention of the whole society on energy and environmental pollution. The rapid development of clean energy It must be done. Solar energy is a clean, safe and inexhaustible energy source. Effective use of solar energy is of great significance to alleviating the energy crisis, protecting the environment, and promoting ...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCY02E10/549H10K71/00H10K85/211H10K30/451H10K30/00Y02P70/50
Inventor 丁黎明陈珊左传天
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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