Fluorine and rubidium doped perovskite solar cell and preparation method thereof

A solar cell and perovskite technology, applied in the field of solar cells, can solve problems such as low photoelectric conversion efficiency, and achieve the effects of reducing surface pores, improving spectral absorption performance, and film-forming crystallinity

Pending Publication Date: 2019-11-05
XIAN JIAOTONG LIVERPOOL UNIV
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Problems solved by technology

The biggest problem with inorganic perovskite solar cells is that, compared with organic systems, the pho

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  • Fluorine and rubidium doped perovskite solar cell and preparation method thereof
  • Fluorine and rubidium doped perovskite solar cell and preparation method thereof

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[0037] as attached Figure 1-2 As shown, a perovskite solar cell doped with fluorine and rubidium includes substrate 1, conductive layer 2, TiO 2 Dense layer 3, TiO 2 Mesoporous layer 4, fluorine and rubidium doped perovskite light absorbing layer 5, hole transport layer 6 and counter electrode 7; the material of the fluorine and rubidium doped perovskite light absorbing layer 5 is Cs 1-x Rb x PbBrI 2-y f y , x is 0-0.05, y is 0-0.3, and the thickness is 400nm; the bottom substrate 1 is a glass substrate, and the conductive layer 2 is SnO doped with fluorine 2The conductive glass layer is called the FTO conductive layer; the top surface of the substrate 1 is provided with an FTO conductive layer with a width slightly narrower than that of the substrate, the length of the FTO conductive layer is consistent with that of the substrate 1, and the top surface of the FTO conductive layer is provided with TiO 2 Dense layer 3 and TiO 2 Mesoporous layer 4; TiO 2 The mesoporous l...

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Abstract

The invention discloses a fluorine and rubidium doped perovskite solar cell and a preparation method thereof. The solar cell comprises a substrate, a conductive layer, a TiO2 dense layer, a TiO2 mesoporous layer, a fluorine and rubidium doped perovskite light absorbing layer, a hole transport layer and a counter electrode from bottom to top, wherein the material of the fluorine and rubidium dopedperovskite light absorbing layer is Cs1-xRbxPbBrI2-yFy, x is 0-0.05, y is 0-0.3, and the thickness is 300-500nm. The preparation method includes the following steps of: A, preparation of the conductive layer; B, preparation of the TiO2 dense layer and the TiO2 mesoporous layer; C, preparation of the fluorine and rubidium doped perovskite light absorbing layer; D, preparation of the hole transportlayer; and E, preparation of the counter electrode. According to the scheme of the invention, the spectral absorption performance of the light absorbing layer and the overall efficiency of a battery can be improved; the battery performance attenuation speed can be greatly reduced; the exciton dissociation and charge transfer can be facilitated, and can be relatively stable in the later battery attenuation; and without packaging, the solar cell can be used in higher water oxygen content and has good intrinsic stability.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a perovskite solar cell doped with fluorine and rubidium and a preparation method thereof. Background technique [0002] Perovskite solar cells have been intensively studied by the scientific community for a decade, and they have been continuously improved to replace silicon solar cells. However, with CH 3 NH 3 Organic perovskite solar cells with PbI3 as the basic structure have low efficiency and poor stability, so there is still huge room for improvement of such solar cells. In recent years, there has been an investigation based on the replacement of CH with Cs+ 3 NH 3 +CsPbI 2 Research on Br inorganic perovskite solar cell system. Compared with the organic system, the stability of this solar cell is greatly increased. Therefore, it is very beneficial to promote the process of commercial application of solar cells, make full use of solar energy, a clean energy, and realize eff...

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Application Information

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IPC IPC(8): H01L51/46H01L51/48
CPCH10K30/00H10K2102/00Y02E10/549Y02P70/50
Inventor 耿显葳赵春赵策洲杨莉尹力
Owner XIAN JIAOTONG LIVERPOOL UNIV
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