Electron transport material with core-shell structure and perovskite solar cell containing electron transport material

An electron transport material and solar cell technology, applied in the field of solar cells, can solve the problems of restricting commercial development and poor stability of perovskite cells, and achieve the effects of improving efficiency, improving stability, and inhibiting decomposition

Pending Publication Date: 2020-12-01
北京宏泰创新科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology uses nano particles on zinc coating instead of directly touching it over another material like calcium titanate (CaTi03). By doing this, there're no decomposable materials that could damage certain layers inside the cell. Additionally, when making thin films made up of these tiny crystals, they help improve their performance compared to traditional methods such as vacuum deposition. Overall, this method allows for more flexibility in producing high-quality Perovskites solar cells while maintaining good quality control during production processes.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance and durability of pervoskites due to environmental factors such as water vapor and air exposing them during production processes.

Method used

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  • Electron transport material with core-shell structure and perovskite solar cell containing electron transport material
  • Electron transport material with core-shell structure and perovskite solar cell containing electron transport material
  • Electron transport material with core-shell structure and perovskite solar cell containing electron transport material

Examples

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Embodiment 1

[0040] Example 1: ZnO@SnO 2 Fabrication of nanorod-based perovskite solar cells

[0041] 1) FTO glass cleaning: Sonicate the 2*2cm FTO glass substrate with detergent, deionized water, and alcohol for 20 minutes in sequence, and then N 2 blow dry.

[0042] 2) Preparation of the ZnO seed layer: use the sol-gel method to prepare a certain concentration of zinc acetate precursor solution as the ZnO seed solution, and then spin-coat the ZnO seed solution on the FTO substrate, the spin-coating speed is 3000rpm, and the spin-coating time for 20s. Then put it into the muffle furnace for annealing for a period of time.

[0043] 3) Preparation of ZnO nanorod arrays: prepared by chemical water deposition, first, prepare a growth solution, mix a certain concentration of zinc acetate aqueous solution and a certain concentration of polyvinylpyrrolidone (PVP) aqueous solution, and then adjust the mixed solution by dropping ammonia water The pH value is 10. Put the ZnO seed layer into the a

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Abstract

The invention discloses an electron transport material with a core-shell structure and a perovskite solar cell containing the electron transport material. The core of the electron transport material with the core-shell structure is zinc oxide, and the shell is tin oxide. The perovskite solar cell comprises an electron transport layer, a perovskite layer and a hole transport layer, the electron transport layer comprises a compact zinc oxide seed crystal layer and a nanorod array mesoporous layer on the compact zinc oxide seed crystal layer, and the mesoporous layer is the electron transport material with the core-shell structure.

Description

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Claims

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Application Information

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Owner 北京宏泰创新科技有限公司
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