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Novel perovskite battery and preparation method thereof

A perovskite battery and perovskite technology, applied in the field of solar cells, can solve problems such as poor crystal quality, sensitive preparation environment, and instability

Inactive Publication Date: 2020-04-28
徐州吴瑞信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Organometal halide perovskite materials are used as the light-absorbing layer of perovskite solar cells, which are sensitive to the preparation environment, and have problems such as poor crystal quality, many defect states, and instability, especially in humid working environments. The prepared organometal halide perovskite layer is more likely to rapidly decay its photoelectric conversion efficiency due to the intrusion of moisture. How to improve the preparation process of the organometal halide perovskite layer to prepare highly dense organometal halide perovskite The mineral layer, thus effectively avoiding moisture from affecting the performance of perovskite solar cells, is a matter of great concern to researchers.

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  • Novel perovskite battery and preparation method thereof

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preparation example Construction

[0020] The present invention proposes a preparation method of a novel perovskite battery, comprising the following steps:

[0021] 1) provide an ITO conductive glass, first spin-coat Ti on the ITO conductive glass 3 C 2 Doped SnO 2 colloidal solution, and perform the first annealing treatment to form the electron transport layer, wherein the specific steps of the first annealing treatment are: spin-coat Ti 3 C 2 Doped SnO 2 The ITO conductive glass of the colloid solution is placed in a fixture, and the temperature is raised to 140-150°C at 20-40°C / min, and at the same time, the pressure of the fixture on the ITO conductive glass is increased to 8- 20N for 20-40 minutes to obtain the electron transport layer.

[0022] Wherein, in the step 1), the Ti 3 C 2 Doped SnO 2 SnO in colloidal solution 2 The mass concentration of colloid is 2.5-3.5%, Ti 3 C 2 The mass concentration is 0.2-0.3%, spin-coat the Ti 3 C 2 Doped SnO 2 The rotational speed of the colloidal soluti...

Embodiment 1

[0032] A preparation method of a novel perovskite battery, comprising the following steps:

[0033] 1) provide an ITO conductive glass, first spin-coat Ti on the ITO conductive glass 3 C 2 Doped SnO 2 colloidal solution, and perform the first annealing treatment to form the electron transport layer, wherein the specific steps of the first annealing treatment are: spin-coat Ti 3 C 2 Doped SnO 2 The ITO conductive glass of the colloidal solution is placed in a fixture, and the temperature is raised to 145°C at 30°C / min. At the same time, the pressure of the fixture on the ITO conductive glass is increased to 14N at a rate of 3N / min, and kept for 30 minutes to obtain The electron transport layer.

[0034] Wherein, in the step 1), the Ti 3 C 2 Doped SnO 2 SnO in colloidal solution 2 The mass concentration of colloid is 3%, Ti 3 C 2 with a mass concentration of 0.25%, spin-coat the Ti 3 C 2 Doped SnO 2 The rotational speed of the colloidal solution was 3000 rpm, and t...

Embodiment 2

[0044] A preparation method of a novel perovskite battery, comprising the following steps:

[0045] 1) provide an ITO conductive glass, first spin-coat Ti on the ITO conductive glass 3 C 2 Doped SnO 2 colloidal solution, and perform the first annealing treatment to form the electron transport layer, wherein the specific steps of the first annealing treatment are: spin-coat Ti 3 C 2 Doped SnO 2 The ITO conductive glass of the colloidal solution is placed in a fixture, and the temperature is raised to 140°C at 40°C / min. At the same time, the pressure of the fixture on the ITO conductive glass is increased to 20N at a rate of 4N / min, and kept for 20 minutes to obtain The electron transport layer.

[0046] Wherein, in the step 1), the Ti 3 C 2 Doped SnO 2 SnO in colloidal solution 2 The mass concentration of colloid is 3.5%, Ti 3 C 2 with a mass concentration of 0.2%, spin-coat the Ti 3 C 2 Doped SnO 2 The rotational speed of the colloidal solution was 3500 rpm, and ...

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Abstract

The invention relates to a novel perovskite battery and a preparation method thereof. According to the method, an electron transport layer, a perovskite functional layer, a first hole transport layer,a second hole transport layer and metal electrodes are sequentially prepared on ITO conductive glass; and in the annealing process of the electron transport layer, the perovskite functional layer, the first hole transport layer and the second hole transport layer, a certain pressure and a specific pressure applying process is optimized, so that the high-compactness electron transport layer, perovskite functional layer, first hole transport layer and second hole transport layer can be obtained.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a novel perovskite cell and a preparation method thereof. Background technique [0002] In the field of solar cell technology, perovskite solar cells, as a new generation of organic solar cells, have become a hot research topic due to their high conversion efficiency, simple preparation process, and low preparation cost. Organometal halide perovskite materials are used as the light-absorbing layer of perovskite solar cells, which are sensitive to the preparation environment, and have problems such as poor crystal quality, many defect states, and instability, especially in humid working environments. The prepared organometal halide perovskite layer is more likely to rapidly decay its photoelectric conversion efficiency due to the intrusion of moisture. How to improve the preparation process of the organometal halide perovskite layer to prepare highly dense organometal halide p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K71/40H10K85/30H10K30/10H10K2102/00Y02E10/549
Inventor 朱煜剑
Owner 徐州吴瑞信息科技有限公司