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Fibrous perovskite solar cell and preparation method and application thereof

A technology of solar cells and perovskites, applied in the field of solar cells

Inactive Publication Date: 2018-11-23
BEIJING INST OF COLLABORATIVE INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the energy conversion efficiency of the fiber-type perovskite solar cells obtained by them is only about 3%, which cannot meet the market demand well.

Method used

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  • Fibrous perovskite solar cell and preparation method and application thereof
  • Fibrous perovskite solar cell and preparation method and application thereof
  • Fibrous perovskite solar cell and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0074] A titanium wire with a diameter of 250 nm and a purity of 99.9% was taken, polished with 5000-mesh sandpaper, and then ultrasonically cleaned with acetone and ethanol in sequence. fixed at figure 2 On the wire coating machine shown, the electric heating temperature is 500° C., and the heating time is 1 min, and the titanium dioxide dense layer is prepared in situ. Dilute 18NR-T commercial titanium dioxide slurry by adding 6.5 times the mass of ethanol to make titanium dioxide colloid; figure 2 On the wire coating machine shown, the titanium wire is heated to 120°C, the rotation speed of the titanium wire in the radial direction is 0.5r / s, and the titanium dioxide colloid is loaded on the figure 2 The speed-adjustable moving base 8 on the wire coating machine shown was made to move at a speed of 0.5 cm / s in the axial direction of the titanium wire, and coated 10 times to prepare a titanium dioxide porous layer. Use DMF as a solvent to prepare PbI with a concentration o...

Embodiment 2

[0078] A titanium wire with a diameter of 250 nm and a purity of 99.9% was taken, polished with 5000-mesh sandpaper, and then ultrasonically cleaned with acetone and ethanol in sequence. fixed at figure 2 On the wire coating machine shown, the electric heating temperature is 500° C., and the heating time is 1 min, and the titanium dioxide dense layer is prepared in situ. Dilute the 18NR-T commercial titanium dioxide slurry by adding 8 times the mass of ethanol to make titanium dioxide colloid; figure 2 On the wire coating machine shown, the titanium wire is heated to 120°C, the rotation speed of the titanium wire in the radial direction is 0.5r / s, and the titanium dioxide colloid is loaded on the figure 2 The speed-adjustable mobile base 8 on the wire coating machine shown was made to move at a speed of 2 cm / s in the axial direction of the titanium wire, and coated 8 times to prepare a titanium dioxide porous layer.

[0079] Use DMF:DMSO=5:1 (mass ratio) as a mixed solvent, ...

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Abstract

The invention relates to a fibrous perovskite solar cell and a preparation method and application thereof. The solar cell takes a titanium wire serving as an electrode as the center and sequentially comprises the titanium wire serving as the electrode, a titanium dioxide compact layer, a titanium dioxide porous layer, a perovskite crystal layer, a hole transporting layer and thin gold serving as an opposite electrode from inner to outside in the radial direction of the solar cell. The prepared fibrous perovskite solar cell can greatly improve the energy conversion efficiency (which can reach up to 9%), can easily achieve big-size preparation and provides an effective guarantee for being applied to the fields of wearable equipment, smart home and the like.

Description

technical field [0001] The invention belongs to the technical field of solar cells, in particular to a high-efficiency and large-size fiber-type perovskite solar cell and a preparation method thereof. Background technique [0002] Today, with the rapid development of wearable devices, higher requirements are placed on portable energy supply devices. At present, the most common energy supply method is to use lithium batteries embedded in wearable devices, but it needs to face the trouble of frequent charging. If power generation devices such as solar cells can be integrated into wearable devices, or woven into clothing, and combined with energy storage devices such as lithium batteries or supercapacitors, uninterrupted work can be achieved around the clock. Whether it is integrated into wearable devices or woven into clothing, fiber-type flexible solar cells are the most ideal device form, so the development of fiber-type solar cells is an urgent need at present. [0003] A...

Claims

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Application Information

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IPC IPC(8): H01L51/42H01L51/44H01L51/48
CPCH10K71/10H10K30/151H10K30/81Y02E10/549Y02B10/10
Inventor 邹德春董斌陈补鑫简蓉
Owner BEIJING INST OF COLLABORATIVE INNOVATION
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