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Perovskite solar cell with vulcanized composite electron transmission layer structure

A technology of electron transport layer and solar cell, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems that restrict the rapid development of perovskite solar cells, low electron mobility, and destroy the perovskite layer, and achieve simple preparation methods Fast, accelerates the transport of electrons, and inhibits the effect of interface charge recombination

Active Publication Date: 2018-05-15
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TiO 2 The electron transport layer is widely used in perovskite solar cells, but its low electron mobility restricts the rapid development of perovskite solar cells; under ultraviolet light, the desorption of oxygen molecules on its surface causes device instability Sex issues remain unresolved
compared to TiO 2 , ZnO has higher electron mobility, but the surface alkalinity of ZnO in perovskite solar cell devices will destroy the perovskite layer and cause device degradation

Method used

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  • Perovskite solar cell with vulcanized composite electron transmission layer structure
  • Perovskite solar cell with vulcanized composite electron transmission layer structure
  • Perovskite solar cell with vulcanized composite electron transmission layer structure

Examples

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Embodiment 1

[0027] The perovskite solar cell of the present invention comprises a transparent conductive substrate, a sulfurized composite electron transport layer, a perovskite light-absorbing layer, a hole transport layer and a back electrode stacked in sequence. The perovskite solar cell with this structure can form reasonable energy level matching and conduct charge effectively.

[0028] Preferably, the perovskite light-absorbing layer is a perovskite polycrystalline film. The perovskite polycrystalline film has high quality, good energy level matching and low cost.

[0029] Preferably, the hole transport layer material is spiro-OMeTAD. Spiro-OMeTAD has a good energy level match with the perovskite light-absorbing layer, and can effectively transport holes to the back electrode layer, thereby ensuring high photoelectric conversion efficiency.

[0030] The preparation method of this embodiment is:

[0031] First, a dense layer of ZnO is prepared on a conductive substrate.

[0032] ...

Embodiment 2

[0037] The perovskite solar cell of the present invention comprises a transparent conductive substrate, a sulfurized composite electron transport layer, a perovskite light-absorbing layer, a hole transport layer and a back electrode stacked in sequence. The perovskite solar cell with this structure can form reasonable energy level matching and conduct charge effectively.

[0038] Preferably, the perovskite light-absorbing layer is a perovskite polycrystalline film. The perovskite polycrystalline film has high quality, good energy level matching and low cost.

[0039] Preferably, the hole transport layer material is spiro-OMeTAD. Spiro-OMeTAD has a good energy level match with the perovskite light-absorbing layer, and can effectively transport holes to the back electrode layer, thereby ensuring high photoelectric conversion efficiency.

[0040] The preparation method of this embodiment is:

[0041] First, a dense layer of ZnO is prepared on a conductive substrate. The isopr...

Embodiment 3

[0046] The perovskite solar cell of the present invention comprises a transparent conductive substrate, a sulfurized composite electron transport layer, a perovskite light-absorbing layer, a hole transport layer and a back electrode stacked in sequence. The perovskite solar cell with this structure can form reasonable energy level matching and conduct charge effectively.

[0047] Preferably, the perovskite light-absorbing layer is a perovskite polycrystalline film. The perovskite polycrystalline film has high quality, good energy level matching and low cost.

[0048] Preferably, the hole transport layer material is spiro-OMeTAD. Spiro-OMeTAD has a good energy level match with the perovskite light-absorbing layer, and can effectively transport holes to the back electrode layer, thereby ensuring high photoelectric conversion efficiency.

[0049] The preparation method of this embodiment is:

[0050] First, a dense layer of ZnO is prepared on a conductive substrate. In an arg...

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Abstract

The invention provides a perovskite solar cell with vulcanized composite electron transmission layer structure and relates to a perovskite solar cell. The perovskite solar cell comprises a conductivesubstrate, a vulcanized composite electron transmission layer, a perovskite light absorption layer, a cavity transmission layer and a back electrode that are successively overlapped; the vulcanized composite electron transmission layer is composed of a ZnO layer and a ZnS layer, and ZnS is located between the ZnO and the perovskite light absorption layer. The perovskite solar cell has the advantages of being high in efficiency, small in hysteresis, and long in service life, the preparation method of the vulcanized composite electron transmission layer is simple and fast, and the repeatabilityis high. Reasonable energy level matching can be formed, and electric charges can be effectively conducted.

Description

technical field [0001] The invention relates to a perovskite solar cell, in particular to a perovskite solar cell with a vulcanized compound electron transport layer structure. Background technique [0002] In the field of photovoltaic industry, the photoelectric conversion efficiency (PCE) of perovskite solar cells has rapidly climbed from 3.8% to the current certified 22.7% in 8 years, immediately becoming a bright star. This rapid development is mainly due to the advantages of high photoelectric conversion efficiency, low preparation cost, and relatively simple process of perovskite solar cells. Therefore, this subject research has become the frontier and hot spot of domestic and foreign research in recent years. The general structure of a perovskite solar cell includes: a transparent conductive substrate, an electron transport layer, a perovskite light-absorbing layer, a hole transport layer, and a back electrode. When sunlight is irradiated, electrons and holes are se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42
CPCH10K30/10H10K30/65Y02E10/549
Inventor 郑南峰陈睿豪曹靖吴炳辉
Owner XIAMEN UNIV
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