Full-carbon-base perovskite solar energy cell and preparation process

A solar cell and perovskite technology, applied in the field of solar cells, can solve problems such as poor light stability, and achieve the effects of stable properties, not easy to oxidize and corrode, and good stability

Inactive Publication Date: 2017-09-12
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional carbon-based perovskite solar cells usually use titanium dioxide as the electron transport layer. The water and oxygen adsorbed on the surface of titanium dioxide will be oxidized into superoxide negative ions and hydroxide radicals under light conditions. These oxides can quickly make the perovskite layer Decomposition occurs, making traditional carbon-based perovskite solar cells less stable to light

Method used

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  • Full-carbon-base perovskite solar energy cell and preparation process
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  • Full-carbon-base perovskite solar energy cell and preparation process

Examples

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Effect test

Embodiment 1

[0018] Example 1. Fullerene as an electron transport layer integrated all-carbon-based perovskite solar cell device and its performance characterization

[0019] figure 1 The device structure of an all-carbon-based perovskite solar cell integrated with fullerene as an electron transport layer in the present invention is shown, including: a transparent conductive substrate, a fullerene electron transport layer, a perovskite light-absorbing layer, and a carbon electrode. The preparation steps are as follows:

[0020] (1) Cleaning of conductive glass: Ultrasonic cleaning with deionized water, acetone, and isopropanol for 15 minutes and UV ozone treatment for 20 minutes twice in a row.

[0021] (2) Preparation of fullerene electron transport layer: using a vacuum evaporation system at 1 × 10 -7 Under the vacuum of Torr, the fullerene C 60 by Evaporate on the conductive glass at a high speed, and the evaporation thickness is 30nm.

[0022] (3) Preparation of the perovskite la...

Embodiment 2

[0028] Example 2, PCBM as an all-carbon-based perovskite solar cell integrated with an electron transport layer

[0029] A perovskite solar cell of the present invention is basically the same in implementation and effect as in Example 1, the only difference being that the electron transport layer uses fullerene derivative PCBM, and PCBM is dissolved in chlorobenzene to form a 20 mg / ml solution , Spin-coating 20nm on conductive glass by solution spin-coating method.

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Abstract

The invention discloses a full-carbon-base perovskite solar energy cell and a preparation process. The perovskite solar energy cell comprises a substrate, a transparent electrode, fullerene or fullerene derivative, a perovskite light-absorption layer and a charcoal electrode which are sequentially laminated, wherein the fullerene or the fullerene derivative is taken as an electronic transmission layer, and the perovskite light-absorption layer is prepared by a photovoltaic material having a perovskite structure. And the preparation process comprises sequentially preparing the transparent electrode, the fullerene electronic transmission layer, the perovskite light-absorption layer and the charcoal electrode on the substrate. The full-carbon-base perovskite solar energy cell is advantaged in that the preparation process is simple, cost is low, cell stability is high, and cell industrialization production can be realized.

Description

technical field [0001] The invention relates to an all-carbon-based perovskite solar cell and a preparation process thereof, belonging to the technical field of solar cells. Background technique [0002] With the aggravation of energy crisis, environmental pollution and other issues, people's demand for new renewable energy is becoming more and more significant. Renewable energy includes solar energy, hydropower, wind power, biomass energy, wave energy, tidal energy, ocean temperature difference energy, etc. Among them, solar energy has attracted much attention due to its advantages of reusability, low cost, and inexhaustibility. There are many ways to use solar energy, such as direct use of the heat energy of sunlight, such as commonly used solar water heaters, and the conversion of solar energy into other energy sources before utilization, such as solar cells that convert the light energy of sunlight into electrical energy and then use it. Make use of. Due to the high pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K85/211H10K85/221H10K85/30H10K30/00H10K30/81H10K30/82Y02E10/549
Inventor 孟祥悦周军帅侯杰陶霞
Owner BEIJING UNIV OF CHEM TECH
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