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Solar battery

A solar cell, metal electrode technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as slow crystallization, and achieve the effect of improving photoelectric conversion rate and stability, and reducing temperature

Inactive Publication Date: 2017-09-08
RUGAO XIAYUAN SCI & TECH ESTABLISH A BUSINESS SERVICES CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the structure of solar cells currently reported is mainly FTO / TiO 2 / CH 3 NH 3 PB 3 / spiro-OMeTAD / Au, its battery efficiency has reached 20.1%; but this structure has the following disadvantages: TiO 2 The preparation of the dense layer requires sintering at a high temperature of 450 °C, CH 3 NH 3 PB 3 The preparation of the layer also requires slow crystallization under heating conditions, and these heating processes are not conducive to the CH 3 NH 3 PB 3 The material is applied to many substrates that cannot be heated, such as polymer films, etc.

Method used

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  • Solar battery

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Embodiment

[0019] The solar cell of this embodiment, such as figure 1 As shown, including a fluorine-doped tin oxide glass substrate 1 with a sheet resistance of 10-15 ohms and a transmittance of 80-85%;

[0020] On the fluorine-doped tin oxide glass substrate 1, a zinc oxide dense layer 2 with a thickness of 30nm, a perovskite layer 3 with a thickness of 200nm formed by methylamine lead iodine, a hole transport layer 4 with a thickness of 100nm and a thickness of 120nm metal Ag electrode layer 5;

[0021] Specifically, half a drop of Spiro-OMeTAD (2,2',7,7'-tetrakis[N,N-bis(4-methoxyphenyl)amino]-9,9'- spirobifluorene) HTM solution to form a 100 nm hole transport layer 4 .

[0022] In this embodiment, FTO / TiO 2 / CH 3 NH 3 PB 3 The original structure of / spiro-OMeTAD / Au was improved and changed to FTO / ZnO / CH 3 NH 3 PB 3 / spiro-OMeTAD / Ag structure, the perovskite solar cell with this structure greatly reduces the temperature of perovskite cell preparation, and also makes CH 3 NH...

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Abstract

The invention relates to a solar battery. The solar battery comprises a glass substrate and a compact layer, a perovskite layer, a hole transport layer and a metal electrode layer which are stacked on the substrate in sequence. The solar battery has the advantages as follows: by virtue of the perovskite solar battery with the structure, the preparation temperature of the perovskite battery can be greatly lowered; and meanwhile, a CH<3>NH<3>PbI<3> material can be rapidly generated by crystallization without being heated, so that the photoelectric conversion rate and stability of the battery are further improved remarkably.

Description

technical field [0001] The invention relates to the technical field of perovskite solar cells, in particular to a solar cell. Background technique [0002] In recent years, organic-inorganic hybrid perovskite solar cells have shown excellent optoelectronic performance and great potential. With the development of perovskite solar cell technology, the photoelectric conversion efficiency of cell devices based on this light-absorbing material is as high as 19.3%. [0003] Based on CH 3 NH 3 PB 3 Solar cells have attracted worldwide attention due to their rapidly increasing efficiency. At present, the structure of solar cells currently reported is mainly FTO / TiO 2 / CH 3 NH 3 PB 3 / spiro-OMeTAD / Au, its battery efficiency has reached 20.1%; but this structure has the following disadvantages: TiO 2 The preparation of the dense layer requires sintering at a high temperature of 450 °C, CH 3 NH 3 PB 3 The preparation of the layer also requires slow crystallization under hea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46
CPCH10K30/152Y02E10/549Y02P70/50
Inventor 曹建民
Owner RUGAO XIAYUAN SCI & TECH ESTABLISH A BUSINESS SERVICES CO LTD
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