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A kind of carbon electrode material of perovskite thin film solar cell and preparation method thereof

A solar cell and perovskite technology, applied in the direction of photosensitive equipment, etc., can solve the problems of large-scale promotion of unsuitable technology, high requirements for experimental conditions, and high cost, and achieve the effects of easy control of film thickness, cost reduction, and low cost

Active Publication Date: 2018-05-25
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This experimental method requires high temperature, inert environment, high experimental conditions, high energy consumption, high cost, and is not suitable for mass promotion of the process.

Method used

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  • A kind of carbon electrode material of perovskite thin film solar cell and preparation method thereof
  • A kind of carbon electrode material of perovskite thin film solar cell and preparation method thereof
  • A kind of carbon electrode material of perovskite thin film solar cell and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of dense titanium dioxide film layer

[0023] Put diisopropyl di(acetylacetonate) titanate (TiAcAc) into a beaker, add C2H5OH, the molar ratio of raw materials is TiAcAc:C 2 h 5 OH=1:30, stirred for 0.5 hours, the above solution was sprayed to form a film on the transparent conductive FTO substrate, and the sprayed sample was sintered at 500 ° C for 0.5 hours to prepare a dense titanium dioxide film layer.

[0024] (2) Preparation and assembly process of solar cells

[0025] Preparation of the light-absorbing layer of the perovskite film: under an inert atmosphere, spin-coat PbI on the above-mentioned dense titanium dioxide film layer by liquid phase method 2 solution, heated at 110°C for 5 minutes; impregnated with prepared CH 3 NH 3 I solution, reacted for 30 minutes, took it out and washed it in IPA solution; finally put it in an environment of 70 ° C for 30 minutes to dry.

[0026] (3) Preparation of hole transport layer / carbon thin film layer ...

Embodiment 2

[0029] (1) Preparation of dense titanium dioxide film layer

[0030] Refer to the preparation process of the dense titanium dioxide thin film layer in Example 1.

[0031] (2) Preparation and assembly process of solar cells

[0032] Refer to the preparation and assembly process of the solar cell in Example 1.

[0033] (3) Preparation of carbon counter electrode:

[0034] Referring to the preparation process of the carbon counter electrode in Example 1, the spraying time was adjusted to 150s.

Embodiment 3

[0036] (1) Preparation of dense titanium dioxide film layer

[0037] Refer to the preparation process of the dense titanium dioxide thin film layer in Example 1.

[0038] (2) Preparation and assembly process of solar cells

[0039] Refer to the preparation and assembly process of the solar cell in Example 1.

[0040] (3) Preparation of hole transport layer / carbon electrode

[0041] Referring to the preparation process of the carbon counter electrode in Example 1, the spraying time was adjusted to 50s.

[0042] combined with figure 1 Schematic representation of the structure of a perovskite thin film solar cell, where the hole transport layer / carbon thin film layer is figure 1 Schematic diagram of the thin film referred to in middle 4, that is, the carbon electrode layer of the perovskite thin film solar cell.

[0043] combine figure 2 with image 3It can be further illustrated that the operation of the present invention is highly controllable. The resistance of the h...

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Abstract

The invention discloses a carbon electrode material for a perovskite solar cell and a preparation method thereof, belonging to the field of photoelectric materials and nano film preparation. The invention adopts the spray coating method to prepare a dense titanium dioxide thin film electron transport layer on a transparent conductive substrate; then prepares an organometallic halide with a perovskite structure on the dense titanium dioxide thin film as a light absorption layer, and then uses a spray coating method on the perovskite The hole transport layer / carbon electrode layer is prepared on the light absorbing layer of the mineral thin film, and the obtained carbon thin film is the carbon electrode layer of the perovskite solar cell. Carbon materials are used instead of expensive noble metals as hole transport electrode materials to reduce costs. The simple, fast, and large-scale production of spray coating method further saves costs, and solves the problems of high cost of perovskite solar cell electrodes and the difficulty of large-scale production of metal electrodes prepared by vacuum evaporation. It is suitable for low-temperature preparation Electrode materials for large-area perovskite solar cells.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a method for preparing a carbon electrode material for a perovskite solar cell, and belongs to the field of photoelectric materials and nano film preparation. Background technique [0002] With the shortage of traditional fossil energy and increasingly serious environmental problems, high-efficiency, low-energy consumption, and pollution-free solar cells have attracted the attention of various countries. In 2009, Japanese scientist Miyasaka first used perovskite-based semiconductors for liquid-state sensitized solar cells. Among them, a photoelectric conversion efficiency of 3.8% has been achieved, but due to the corrosion of the electrolyte, the cell efficiency decays rapidly (J. Am. Chem. Soc. 2009, 131, 6050.). With the deepening of research, the efficiency of perovskite solar cells has been further improved, and the highest efficiency certified by NREL has reached 17.9%. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/20
Inventor 赵晋津魏丽玉王鹏贾春媚王志远
Owner SHIJIAZHUANG TIEDAO UNIV
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